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Last modified: Sat Aug 2 18:17:35 2025.

# Directory Listing of Routines

# projects/maven/sta/mvn_sta_programs

- MVN_STA_BKG_CLEANUP
  For small number backgrounds, consolidates mvn_id_dat.bkg to match with mvn_id_dat.data
- MVN_STA_BKG_CORRECT
  Corrects coincident background in sw where time variations happen on <4ms time scales, must first run mvn_sta_bkg_load
- MVN_STA_BKG_CORRECT_STRAGGLE
  Corrects coincident background in sw where time variations happen on <4ms time scales, and runs mvn_sta_bkg_straggle_all.pro
- MVN_STA_BKG_LOAD
  Loads background data into APID c6 common block
- MVN_STA_BKG_STRAGGLERS_ALL
  Adds straggler background from solar wind protons, alphas
- MVN_STA_DEAD_LOAD
  Loads dead-time arrays into apid common blocks for science data products, modified 20170919 for high background SEP events
- MVN_STA_GF_CORR
  Computes a corrected g-factor for C0, C6, and C8 data products based on the CA data product.
- MVN_STA_L2_GF_UPDATE
  Used to update the geom_factor in data structures based on inflight calibrations, assumes c6 data is loaded for gf_old keyword
- MVN_STA_MAG_LOAD
  Load Magnetometer data and insert values into STATIC
- MVN_STA_MAG_LOAD_V2
  Load Magnetometer data and insert values into STATIC
- MVN_STA_MAKE_C6E
  Makes common block structure mvn_c6e (64E-64M) from c6 (32E-64M) and c0 (64E-2M) data products
- MVN_STA_MAKE_D1E
  Makes common block structure mvn_d1e (64E-64S-8M) from d1 (32E-64S-8M) and c0 (64E-1S-2M) data products
- MVN_STA_RESTORE_THE_DEAD
  Loads dat_dead array into the "mvn_sta_dead" common block from maven_dir+'data\maven\data\sci\sta\iv1\dead'
- MVN_STA_SC_BINS_INSERT
- MVN_STA_SC_BINS_LOAD[1]
- MVN_STA_SC_BINS_LOAD[2]
- MVN_STA_SC_BINS_LOAD[2]
- MVN_STA_SC_BINS_LOAD_OLD[1]
- MVN_STA_SC_BINS_LOAD_OLD[2]
- MVN_STA_SC_BINS_LOAD_OLD[2]
- MVN_STA_SC_BINS_LOAD_TEST[1]
- MVN_STA_SC_BINS_LOAD_TEST[2]
- MVN_STA_SC_BINS_LOAD_TEST[2]
- MVN_STA_SCPOT_LOAD
  Loads scpot into static apid common blocks for science data products - only works if scpot is negative
- MVN_STA_SCPOT_UPDATE

# Routine Descriptions

## MVN_STA_BKG_CLEANUP

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    PROCEDURE:	mvn_sta_bkg_cleanup
    PURPOSE:
    	For small number backgrounds, consolidates mvn_id_dat.bkg to match with mvn_id_dat.data
    INPUT:

    KEYWORDS:
    	save_bkg	0/1	if set, will save the current value of bkg in an intermediate array -- for testing
    	restore_bkg	0/1	if set, will restore value of bkg in an intermediate array created by save_bkg -- for testing
    	no_digitize	0/1	if set, mvn_id_dat.bkg is NOT digitized to a value equal to mvn_id_dat.data if they are statistically equivalent
    					no_digitize keyword is only used for testing

    CREATED BY:	J. McFadden 20/09/01
    VERSION:	1
    LAST MODIFICATION:  21/05/11
    MOD HISTORY:
    		21/05/10	; modified so digitize will not act on C+ outside the solar wind so faint C+ signal is not removed
    		21/05/11	; changed "digitize" keyword to "no_digitize" so that normal operations don't require this keyword to be set

    NOTES:
     	This routine should be run after all backgrounds are calculated and added to the mvn_id_dat.bkg arrays
    	For small number background in a 4 sec measurement - calculated background removal fails unless averaged over long periods
    	This routine consolidates the calculated fractional count background into nearby time and mass bins where actual counts are measured
    	The net effect doesn't change the overall time averaged background
    	The routine will further set mvn_id_dat.bkg=mvn_id_dat.data if mvn_id_dat.bkg is within 2 sigma of mvn_id_dat.data
    		this feature of setting mvn_id_dat.bkg=mvn_id_dat.data for statistically equivalent values is refered to as "digitize"
    	This results in small changes in background that are statistically insignificant on long time scales and accurate background removal on 4 sec time scales
    	This digitize feature can be turned off with the "no_digitize" keyword - primarily for testing

(See projects/maven/sta/mvn_sta_programs/mvn_sta_bkg_cleanup.pro)

## MVN_STA_BKG_CORRECT

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    PROCEDURE:	mvn_sta_bkg_correct
    PURPOSE:
    	Corrects coincident background in sw where time variations happen on <4ms time scales, must first run mvn_sta_bkg_load
    INPUT:

    KEYWORDS:
    	trange		dbl(2)	time range for background subtraction - used for testing
    					default is full time range
    					if not set, will load c6 data for 3 days and assumes bkg is loaded in c6 data structure
    					this should not be set for batch processing, but should be set for testing
    	avg_interval	flt	number of c6 packets averaged for correction
    					default = 21
    	scale1		flt	default=0.00015, scale factor for variations in coincidence with mass - emperically determined on 20160401
    	scale2		flt	default=0.1, fraction of counts in massbin=40:55 that exceed cnts in massbin=56:63 to ignore correction
    					o2+,co2+ counts straggle into massbins 56:63 making correction inaccurate
    	value2		flt	minimum value of c6 bkg summed over massbin=56:63 at a energy bin to trigger correction algorithm
    					def=0.3  -- should this be lowered? see problem below
    	value3		flt	smoothing valued
    					def=value2
    	test		0/1	if set, will create tplot variables for testing
    	tplot		0/1	if set, will run "mvn_sta_l2_tplot,/test,/all,/replace" at completion of the program
    	save_bkg	0/1	if set, will save the current value of bkg in an intermediate array -- for testing
    	restore_bkg	0/1	if set, will restore value of bkg in an intermediate array created by save_bkg -- for testing
    	only_c6		0/1	if set, only c6 gets bkg updated

    CREATED BY:	J. McFadden 20/07/16
    VERSION:	1
    LAST MODIFICATION:  20/07/27
    MOD HISTORY:

    NOTES:
     	bkg7 from mvn_sta_bkg_load (coincident events) are corrected for fast time variations
    	bkg7 is proportional to rate squared, so any averaging of fluctuations during a 4ms accumulation will result in underestimates of bkg
    	The assumption is that high massbins=56:63 are entirely due to coincident ions unless significant o2+,co2+ is present
    	Differences between dat.bkg estimate from rate^2 and dat.cnts for massbins=56:63 is assumed to be due to rapid flux changes over the 4ms accumulation time
    	Correction factors to dat.bkg are based on (dat.cnts/dat.bkg) ratios and calculated for each energy using c6
    	- a secondary 10% level correction is also applied based coincident timing https://en.wikipedia.org/wiki/Exponential_distribution
     	- it corrects for the exponential decrease in coincident events with increasing mass
    	correction are based on c6, so the time base for corrections will be from c6
    	c6 data for the day before and day after are loaded for intermediate calculations, but c6 is returned to a single day being loaded.
    	some parameters were determined emperically defaults values see to work

    	Problem: there may be a problem with not correcting if calculated bkg is greater than the cnts high mass bins 56:63
    		Changed the >1. to >0.7 on line 238,  also may need to change value2.
    		Saw this problem on 20160402  22:23-22:50 with a weak solar wind and modified code to >0.7

(See projects/maven/sta/mvn_sta_programs/mvn_sta_bkg_correct.pro)

## MVN_STA_BKG_CORRECT_STRAGGLE

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    PROCEDURE:	mvn_sta_bkg_correct_straggle
    PURPOSE:
    	Corrects coincident background in sw where time variations happen on <4ms time scales, and runs mvn_sta_bkg_straggle_all.pro
    INPUT:

    KEYWORDS:
    	avg_interval	flt	number of c6 packets averaged for correction
    					default = 21
    	scale1		flt	default=0.00015, scale factor for variations in coincidence with mass - emperically determined on 20160401
    	scale2		flt	default=0.1, fraction of counts in massbin=40:55 that exceed cnts in massbin=56:63 to ignore correction
    					o2+,co2+ counts straggle into massbins 56:63 making correction inaccurate
    	value2		flt	minimum value of c6 bkg summed over massbin=56:63 at a energy bin to trigger correction algorithm
    					def=0.3  -- should this be lowered? see problem below
    	value3		flt	smoothing valued
    					def=value2
    	test		0/1	if set, will create tplot variables for testing
    	tplot		0/1	if set, will run "mvn_sta_l2_tplot,/test,/all,/replace" at completion of the program
    	save_bkg	0/1	if set, will save the current value of bkg in an intermediate array -- for testing
    	restore_bkg	0/1	if set, will restore value of bkg in an intermediate array created by save_bkg -- for testing
    	only_c6		0/1	if set, only c6 gets bkg updated
    	maven_dead_dir	string	maven_dead_dir is the directory root directory where dat_dead - default = 'c:\data\

    CREATED BY:	J. McFadden 20/07/16
    VERSION:	1
    LAST MODIFICATION:  20/07/27
    MOD HISTORY:

    NOTES:
     	bkg7 from mvn_sta_bkg_load (coincident events) are corrected for fast time variations
    	bkg7 is proportional to rate squared, so any averaging of fluctuations during a 4ms accumulation will result in underestimates of bkg
    	The assumption is that high massbins=56:63 are entirely due to coincident ions unless significant o2+,co2+ is present
    	Differences between dat.bkg estimate from rate^2 and dat.cnts for massbins=56:63 is assumed to be due to rapid flux changes over the 4ms accumulation time
    	Correction factors to dat.bkg are based on (dat.cnts/dat.bkg) ratios and calculated for each energy using c6
    	- a secondary 10% level correction is also applied based coincident timing https://en.wikipedia.org/wiki/Exponential_distribution
     	- it corrects for the exponential decrease in coincident events with increasing mass
    	correction are based on c6, so the time base for corrections will be from c6
    	c6 data for the day before and day after are loaded for intermediate calculations, but c6 is returned to a single day being loaded.
    	some parameters were determined emperically defaults values see to work

    	Problem: there may be a problem with not correcting if calculated bkg is greater than the cnts high mass bins 56:63
    		Changed the >1. to >0.7 on line 238,  also may need to change value2.
    		Saw this problem on 20160402  22:23-22:50 with a weak solar wind and modified code to >0.7

(See projects/maven/sta/mvn_sta_programs/mvn_sta_bkg_correct_straggle.pro)

## MVN_STA_BKG_LOAD

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    PROCEDURE:	mvn_sta_bkg_load
    PURPOSE:
    	Loads background data into APID c6 common block
    INPUT:

    KEYWORDS:
    	trange		dbl(2)	time range for background subtraction
    	AAA		flt	default=1., droop non-linear parameter - doesn't seem to matter that much

      the following are primarily for testing purposes
    	no_update	0/1	when set, will not change background in any common block
    					this allows the routine to generate idlsave_d1_full_str without impacting bkg in common block
    	add		0/1	when set, this will not zero out background before adding the calculated background
    					this allows backgrounds to be calculated on sequential runs as parameters are tuned
    	no_bkg3		0/1	when set, turns off bkg3 background removal - bkg3 not working yet
    	no_bkg4		0/1	when set, turns off bkg4 background removal
    	no_bkg5		0/1	when set, turns off bkg5 background removal
    	no_bkg6		0/1	when set, turns off bkg6 background removal
    	no_bkg7		0/1	when set, turns off bkg7 background removal
    	no_bkg8		0/1	when set, turns off bkg8 background removal
    	no_bkg9		0/1	when set, turns off bkg9 background removal
    	no_bkg10	0/1	when set, turns off bkg10 background removal
    	save_d1_full	0/1	when set, saves d1_full and bkg arrays in idlsave file - diagnostic for bkg3,bkg5 development - not recommended

    CREATED BY:	J. McFadden
    VERSION:	1
    LAST MODIFICATION:  2025/03/26   minor change to prevent NANs from a divide by zero; see lines with  >1.))  added
    MOD HISTORY:

    NOTES:
     bkg2 is TBD - sputtered ions from the spacecraft caused by keV solar wind protons
    	this background is very tenuous, appears at 1-40eV, and at 20<mass<30 - most likely sputtered CO2++ and CO+
    	probably will not bother trying to develop this background estimation
     bkg3 is TBD - scattered ions off entrance posts and grids appearing at other energies and angles - proportional to rate
    	this is primarily observed for solar wind protons below the spectral peak - about 3% of the beam counts
    	the angle distribution appears to be complex so not clear whether this can be worked out
     bkg4 are internally backscattered cold ions near periapsis when the mechanical attenuator is closed
     	removal assumes all heavy ions outside of anodes 5 to 9, and with energy < Esh, are background
    	Esh is the highest energy where the counts in c6 exceed 1/50. of the peak counts and exceed 20 counts.
    	the numbers 50 and 20 were empirically determined and should be tuned to make the algorithm work optimally
    	tf_bkg4 is use to prevent double counting in background removal
     bkg5 is TBD (disabled) caused by event straggling (energy loss) in the carbon foils and from inelastic scattering from grids at the start foil
    	bkg5a are proton stragglers - proportional to event rate
     	bkg5b are alpha  stragglers - proportional to event rate
    	these background are anode dependent - probably dependent on details of the grids
     bkg6 is TBD (disabled) background caused by start_no_stop followed closely by a valid event - proportional to rate squared
    	at high rate, the TOF circuit may not be completely reset before the next event producing a statistical high mass tail
    	bkg6 high mass tail is generally observed at masses just above the high flux mass peak (typically in solar wind)
    	however, valid events that contribute to bkg6 may also be due to other forms of background -- primarily coincidence events
     bkg7 is background from coincident events where different ions (or radiation) produce the start and stop signals - proportional to rate squared
    	bkg7 has errors due to variations in flux on <4ms time scales which are corrected by mvn_sta_bkg_correct.pro
    	mvn_sta_bkg_correct.pro will also correct for the small variation in coincident background with mass
     bkg8 is TBD (disabled) background caused by start_no_stop followed closely by a TOF=0 event - proportional to rate squared
    	bkg8 is similar to bkg6
    	TOF=0 event are caused by scattered electrons that produce simultaneous start and stop signals
    	because bkg8 depends on rate^2, it requires the correction calculated by mvn_sta_bkg_correct.pro
     bkg9 is background created by delayed Start signal from scattered molecular ion fragment
    	that failed to produce a start at the carbon foil but produced a Start electron when it hit another TOF analyzer surface
     bkg10 is TBD (disabled) bkg10 is internally produced background from sputtered ions generated by backscattered start-foil secondary electrons
    	the primary sputtered ion peak is C++, however O+, O++ and C+ are also observed but are much smaller
    	the size of this peak depends on the incident ion mass (secondary e- production) and amount of disolved CO2 on surfaces
    	therefore the size of these peaks will vary with time, anode, and composition

     this algorithm currently generates bkg4, bkg7, bkg9
     	bkg2 will likely never calculated since it is such a weak signal and depends on a complex dynamic of FOV, s/c orientation and solar wind flux
    	bkg3 may never be developed due depends on a complex dynamic of FOV, s/c orientation and solar wind flux
     	bkg5,bkg6 will be treated in a separate program and use outputs from mvn_sta_bkg_correct.pro
    	bkg8 will be treated in a separate program using outputs from mvn_sta_bkg_correct.pro
    	bkg10 will be treated in a separate program using outputs from mvn_sta_bkg_correct.pro

(See projects/maven/sta/mvn_sta_programs/mvn_sta_bkg_load.pro)

## MVN_STA_BKG_STRAGGLERS_ALL

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    PROCEDURE:	mvn_sta_bkg_stragglers
    PURPOSE:
    	Adds straggler background from solar wind protons, alphas
    		Should first run mvn_sta_bkg_load and mvn_sta_bkg_correct to load other backgrounds and fill the
    		Or run mvn_sta_l2_load,/iv1 and mvn_sta_bkg_correct and restore,filename='C:\data\maven\data\sci\sta\iv1\dead\year\mo\mvn_sta_dead_yearmoda.sav'
    		Or run mvn_sta_l2_load,/iv2 and restore,filename='C:\data\maven\data\sci\sta\iv1\dead\year\mo\mvn_sta_dead_yearmoda.sav'
    INPUT:

    KEYWORDS:
    	save_bkg	0/1	if set, will save    current bkg and exit
    	restore_bkg	0/1	if set, will restore current bkg and exit
    	trange		dbl(2)	tbd, not working  - time range for background subtraction - used for testing
    					default is full time range -

    CREATED BY:	J. McFadden 20/09/05
    VERSION:	1
    LAST MODIFICATION:  20/09/05
    MOD HISTORY:

    NOTES:
    	straggle0 is a proton ghost peak and linear in rate
    	straggle4 is an alpha ghost peak and linear in rate
    	straggle1,2 are actual protons stragglers and linear in rate
    	straggle5,6 are actual alphas  stragglers and linear in rate
    	straggle3,8 are non-linear events from protons and a slow TOF circuit reset
    	straggle7,9 are non-linear events from alphas  and a slow TOF circuit reset
    	straggle10 is a ghost peak from protons sputtering e- which produce a weak C++ signal - linear in rate

(See projects/maven/sta/mvn_sta_programs/mvn_sta_bkg_stragglers_all.pro)

## MVN_STA_DEAD_LOAD

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    PROCEDURE:	mvn_sta_dead_load
    PURPOSE:
    	Loads dead-time arrays into apid common blocks for science data products, modified 20170919 for high background SEP events

    KEYWORDS:
    	check:		0,1		if set, prints diagnostic data

    CREATED BY:	J. McFadden
    VERSION:	1
    LAST MODIFICATION:  15/03/02
    MOD HISTORY:
    			14/12/20	changed algorithm to corrected valid events deadtime
    						Deadtime = total(valid*dead,averaged)/total(valid,averaged)
    						where "valid" are the valid events
    							valid(energy,def) is extrapolated from apid c0 and c8
    						where "dead" is determined by rates
    							dead(energy,def) is extrapolated from apid da and c8
    							dead calculation also uses apid d8 to determine relative amounts event types (see d1,d2,d3 in code)
    						where "averaged" accounts for averaging over energy or deflection
    			15/01/17	added mcp droop correction
    			15/02/25	major modifications to mcp droop correction
    			17/10/02	major modifications to correctly account for background from SEP events
    NOTES:
    	Program assumes that "mvn_sta_l0_load" or "mvn_sta_l2_load,/test" has been run
    	Program requires c0,c8,d8,da packets are available at 4 sec cadence
    	Program assumes Apids c2,c4,c6,ca,cd,cf,d3,d4 all have 4 second cadence
    		If at some future date we are forced into slower cadence measurements,
    		then code used for apid cc can be adapted to the above apids.

    TBDs
    	ef3 should be made anode dependent to account for anode variations in anode rejection early in mission
    	change code so that at attenuator transitions where count rates go below efficiency threshold,
    		that the code will use the nearest attenuated values, not the higher attenuated efficiency.
    		may have to break up the for-loop into 2 for-loops
    	change code to default to anode efficiency based on anode rejection determination
    	change code so that when background is high (as during deep dips from neutral density), the droop eff is properly calculated

(See projects/maven/sta/mvn_sta_programs/mvn_sta_dead_load.pro)

## MVN_STA_GF_CORR

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    PROCEDURE:       MVN_STA_GF_CORR

    PURPOSE:
                     Computes a corrected g-factor for C0, C6, and C8 data products based on the CA data product.

    INPUTS:          None.

    KEYWORDS:

         TPLOT:      Makes some tplot variables by using the corrected g-factor.

    CREATED BY:      Takuya Hara on 2018-08-09.

    LAST MODIFICATION:
     $LastChangedBy: hara $
     $LastChangedDate: 2021-02-25 08:53:57 -0800 (Thu, 25 Feb 2021) $
     $LastChangedRevision: 29701 $
     $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/sta/mvn_sta_programs/mvn_sta_gf_corr.pro $

(See projects/maven/sta/mvn_sta_programs/mvn_sta_gf_corr.pro)

## MVN_STA_L2_GF_UPDATE

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    PROCEDURE:	mvn_sta_l2_gf_update,current_scale=current_scale,gf_scale=gf_scale,gf_old=gf_old
    PURPOSE:
    	Used to update the geom_factor in data structures based on inflight calibrations, assumes c6 data is loaded for gf_old keyword
    INPUT:

    KEYWORDS:
    	gf_scale	flt		scale factor multiplied by original geom_factor
    	gf_old  	0/1		if set will transform geom_factor back to the value estimated at launch,

    CREATED BY:	J. McFadden	2019/04/19
    VERSION:	1
    LAST MODIFICATION:  2019/04/19
    MOD HISTORY:

    NOTES
    	A minimal gf_scale=1.3 is needed to match LPW fp measurements on 20180531 (-3.0V) with no ion suppression
     	Default gf_scale=1.5 determined from 20190405 transition from fly-Z (-0.3) to fly-Y (-2.0V) to get kk3 = [3.1,2.8,3.0,2.4]
    		combined with LPW waves calibraton on 20190331

(See projects/maven/sta/mvn_sta_programs/mvn_sta_l2_gf_update.pro)

## MVN_STA_MAG_LOAD

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    PROCEDURE:   mvn_sta_mag_load

    PURPOSE:
      Load Magnetometer data and insert values into STATIC
      common block structures. Also creates tplot variables.

    USAGE:
      mvn_sta_mag_load

    KEYWORDS:
      frame:       Mag data frame of reference (currently STATIC)
      verbose:     Display information.

    LAST MODIFICATION:
     $LastChangedBy: cmfowler $
     $LastChangedDate: 2019-10-14 09:53:47 -0700 (Mon, 14 Oct 2019) $
     $LastChangedRevision: 27848 $
     $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/sta/mvn_sta_programs/mvn_sta_mag_load.pro $

    .r /Users/cmfowler/IDL/STATIC_routines/mvn_sta_mag_load/mvn_sta_mag_load_cmf.pro

(See projects/maven/sta/mvn_sta_programs/mvn_sta_mag_load.pro)

## MVN_STA_MAG_LOAD_V2

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    PROCEDURE:   mvn_sta_mag_load

    PURPOSE:
      Load Magnetometer data and insert values into STATIC
      common block structures. Also creates tplot variables.

    USAGE:
      mvn_sta_mag_load

    KEYWORDS:
      frame:       Mag data frame of reference (currently STATIC)
      verbose:     Display information.

    LAST MODIFICATION:
     $LastChangedBy: mcfadden $
     $LastChangedDate: 2019-09-17 12:28:36 -0700 (Tue, 17 Sep 2019) $
     $LastChangedRevision: 27766 $
     $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/sta/mvn_sta_programs/mvn_sta_mag_load_v2.pro $

(See projects/maven/sta/mvn_sta_programs/mvn_sta_mag_load_v2.pro)

## MVN_STA_MAKE_C6E

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    PROCEDURE:	mvn_sta_make_c6e
    PURPOSE:
    	Makes common block structure mvn_c6e (64E-64M) from c6 (32E-64M) and c0 (64E-2M) data products

    CREATED BY:	J. McFadden
    VERSION:	1
    LAST MODIFICATION:  16/04/04
    MOD HISTORY:

    NOTES:
    	The common block can be accessed via mvn_sta_get_c6e.pro to return a single data structure
    	Data structures can be operated on by programs like n_4d.pro, v_4d.pro
    	Or used in conjunction with iterative programs such as get_4dt.pro and get_en_spec4dt.pro

(See projects/maven/sta/mvn_sta_programs/mvn_sta_make_c6e.pro)

## MVN_STA_MAKE_D1E

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    PROCEDURE:	mvn_sta_make_d1e
    PURPOSE:
    	Makes common block structure mvn_d1e (64E-64S-8M) from d1 (32E-64S-8M) and c0 (64E-1S-2M) data products

    CREATED BY:	J. McFadden
    VERSION:	1
    LAST MODIFICATION:  16/04/04
    MOD HISTORY:

    NOTES:
    	The common block can be accessed via mvn_sta_get_d1e.pro to return a single data structure
    	Data structures can be operated on by programs like n_4d.pro, v_4d.pro
    	Or used in conjunction with iterative programs such as get_4dt.pro and get_en_spec4dt.pro

(See projects/maven/sta/mvn_sta_programs/mvn_sta_make_d1e.pro)

## MVN_STA_RESTORE_THE_DEAD

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    PROCEDURE:	mvn_sta_restore_the_dead
    PURPOSE:
    	Loads dat_dead array into the "mvn_sta_dead" common block from maven_dir+'data\maven\data\sci\sta\iv1\dead'
    INPUT:

    KEYWORDS:
    	maven_dead_dir	string	default is "C:\data\maven\data\sci\sta\iv1\dead\'
    	trange		dbl(2)	if not set, uses the current default time range - for testing purposes
    	expand		flt	if set, current default time range expanded by "expand" seconds

    CREATED BY:	J. McFadden 20/11/17
    VERSION:	1
    LAST MODIFICATION:  20/11/17
    MOD HISTORY:

    NOTES:
    	dat_dead is used by mvn_sta_bkg_stragglers.pro

(See projects/maven/sta/mvn_sta_programs/mvn_sta_restore_the_dead.pro)

## MVN_STA_SCPOT_LOAD

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    PROCEDURE:	mvn_sta_scpot_load
    PURPOSE:
    	Loads scpot into static apid common blocks for science data products - only works if scpot is negative

    KEYWORDS:
    	check:		0,1		if set, prints diagnostic data

    CREATED BY:	J. McFadden	  15/01/??
    VERSION:	1
    LAST MODIFICATION:  16/02/22
    MOD HISTORY:

    NOTES:
    	Program assumes that "mvn_sta_l0_load" or "mvn_sta_l2_load,/test" has been run
    	Program will use some combination of sta, lpw, swe data to estimate scpot
    	Assumption 1 - O2+ ram velocity only valid below 300 km
    	Assumption 2 - low energy cutoff only valid when (Ni>100/cc and alt>180km) or in shadow
    	Assumption 3 - when the above do not apply, s/c potential set to 0V

    	TBDs - scpot is not valid 20151127/1:00UT - why is it invalid?

    	"cutoff" keyword forces the use of c0 cutoff when pot_cutoff_valid=1 which requires enough counts - needed if winds impact potential

    	Arrays
    	pot 	- potential determined from Vo2-Vram in c6 time base, assume no wind, valid for altitude < alt_vo2 (default=300km)
    	pot1	- pot array interpolated to c0 time2 base, used in validity test to determine whether to use heavy ions in pot2 calculation
    	pot2	- potential determined from ion cutoff, 3 sweeeps used to increase sensitivity, valid for alt>(200.<(min_alt+35.)>180.), p_only=1 means only protons used
    	pot3	- pot2 interpolated to c6 time base
    	pot22	- potential determined from total ion cutoff with no averaging - occassionally more accurate than pot2
    	pot33	- pot22 interpolated to c6 time base
    	p_only	- set to 1 if only protons were used in pot2 determination
    	po_only	- set to 1 if pot22 is used

    	pot_alg	0 if invalid
    		1 if Vo2-Vram used (ie. pot)
    		2 if proton only cutoff used (ie. pot2*p_only)
    		3 if all ion cutoff used (ie. pot2*(1-p_only)
    		4

    	the complexity of the algorith is due to:
    		background coincident events must be ignored
    		scattered/trapped ions below s/c potential (especially at potentials <-10V) must be ignored - these are primarily heavies
    		lack of protons at <180km to estimate cutoff (assume Vo2=Vram to estimate potential)
    		lack of adequate CO2 counts at periapsis for O2-CO2 energy comparison
    		marginal statistical counts of protons near periapsis
    		transition from negative to positive potential at densities of about 8/cc
    		s/c potential is always negative in shadow or in high densities

    	apid c0 is used for cutoff because ti has

(See projects/maven/sta/mvn_sta_programs/mvn_sta_scpot_load.pro)

## MVN_STA_SCPOT_UPDATE

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    PROCEDURE:       mvn_sta_scpot_update

    PURPOSE:         Overwrites STATIC spacecraft potentials with the
                     composite potential from mvn_scpot.  Most of this
                     code is taken from mvn_sta_scpot_load.

                     This procedure generally does not affect STATIC-
                     derived potentials in the EUV shadow, since STATIC
                     is the primary source of potentials in this region.
                     It does provide better estimates in other regions,
                     replacing the STATIC-default 0 V with real estimates
                     in many cases.

    INPUTS:
          none:      All information obtained from and written to common
                     blocks.

    KEYWORDS:

    CREATED BY:      D. L. Mitchell.

    LAST MODIFICATION:
     $LastChangedBy: dmitchell $
     $LastChangedDate: 2018-07-31 10:54:21 -0700 (Tue, 31 Jul 2018) $
     $LastChangedRevision: 25527 $
     $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/sta/mvn_sta_programs/mvn_sta_scpot_update.pro $

(See projects/maven/sta/mvn_sta_programs/mvn_sta_scpot_update.pro)

## MVN_STA_SC_BINS_INSERT

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     FUNCTION:        MVN_STA_SC_BINS_INSERT

     PURPOSE:         Insert s/c blockage into new data structure

     INPUT:           orig_dat - data structure containing spacecraft
                                 blockage
                      new_dat  - new data structure containig data with
                                 spacecraft blockage removed

     OUTPUT:          None.

     KEYWORDS:        None.

     CREATED BY:      Roberto Livi on 2015-10-07.

     VERSION:

    LAST MODIFICATION:
     $LastChangedBy: hara $
     $LastChangedDate: 2015-11-03 16:35:37 -0800 (Tue, 03 Nov 2015) $
     $LastChangedRevision: 19226 $
     $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_insert.pro $

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_insert.pro)

## MVN_STA_SC_BINS_LOAD[1]

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     :Name:
        Roberto Livi

     :Program:
        MVN_STA_SC_BINS_LOAD

     :Syntax:
        IDL> mvn_sta_sc_bins_load, /test_plot1, /test_plot2

     :Purpose:
        Fill MAVEN STATIC common block data with FOV
        obstruction by the spacecraft.

     :Params:
        perc_block: Set this number to the desired percentage
                    of covered area before marking a bin as
                    blocked.

     :Returns:
        None.

     :Keywords:
        test_plot1: Plots for debugging.
        test_plot2: More plots for debugging.
        ssave: Save file for intermediary debugging.
        rrestore: Restore file for intermediary debugging.
        verbose: Print out processing status.

     :Version:

       $LastChangedBy: jimm $
       $LastChangedDate: 2019-10-29 18:09:51 -0700 (Tue, 29 Oct 2019) $
       $LastChangedRevision: 27947 $
       $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load.pro $

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load.pro)

## MVN_STA_SC_BINS_LOAD[2]

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     Inside - Take the dot and cross product of point an nearby vertices
              to determine whether the point is inside or outisde of box

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load.pro)

## MVN_STA_SC_BINS_LOAD[2]

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    #################################################
                    Main Function
    #################################################

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load.pro)

## MVN_STA_SC_BINS_LOAD_OLD[1]

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     :Name:
        Roberto Livi

     :Program:
        MVN_STA_SC_BINS_LOAD

     :Syntax:
        IDL> mvn_sta_sc_bins_load, /test_plot1, /test_plot2

     :Purpose:
        Fill MAVEN STATIC common block data with FOV
        obstruction by the spacecraft.

     :Params:
        perc_block: Set this number to the desired percentage
                    of covered area before marking a bin as
                    blocked.

     :Returns:
        None.

     :Keywords:
        test_plot1: Plots for debugging.
        test_plot2: More plots for debugging.
        ssave: Save file for intermediary debugging.
        rrestore: Restore file for intermediary debugging.
        verbose: Print out processing status.

     :Version:

       $LastChangedBy: jimm $
       $LastChangedDate: 2020-12-17 09:53:34 -0800 (Thu, 17 Dec 2020) $
       $LastChangedRevision: 29540 $
       $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load_old.pro $

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load_old.pro)

## MVN_STA_SC_BINS_LOAD_OLD[2]

[Previous Routine] [Next Routine] [List of Routines]

     Inside - Take the dot and cross product of point an nearby vertices
              to determine whether the point is inside or outisde of box

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load_old.pro)

## MVN_STA_SC_BINS_LOAD_OLD[2]

[Previous Routine] [Next Routine] [List of Routines]

    #################################################
                    Main Function
    #################################################

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load_old.pro)

## MVN_STA_SC_BINS_LOAD_TEST[1]

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     :Name:
        Roberto Livi

     :Program:
        MVN_STA_SC_BINS_LOAD

     :Syntax:
        IDL> mvn_sta_sc_bins_load, /test_plot1, /test_plot2

     :Purpose:
        Fill MAVEN STATIC common block data with FOV
        obstruction by the spacecraft.

     :Params:
        perc_block: Set this number to the desired percentage
                    of covered area before marking a bin as
                    blocked.

     :Returns:
        None.

     :Keywords:
        test_plot1: Plots for debugging.
        test_plot2: More plots for debugging.
        ssave: Save file for intermediary debugging.
        rrestore: Restore file for intermediary debugging.
        verbose: Print out processing status.

     :Version:

       $LastChangedBy: jimm $
       $LastChangedDate: 2020-12-17 09:53:34 -0800 (Thu, 17 Dec 2020) $
       $LastChangedRevision: 29540 $
       $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load_test.pro $

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load_test.pro)

## MVN_STA_SC_BINS_LOAD_TEST[2]

[Previous Routine] [Next Routine] [List of Routines]

     Inside - Take the dot and cross product of point an nearby vertices
              to determine whether the point is inside or outisde of box

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load_test.pro)

## MVN_STA_SC_BINS_LOAD_TEST[2]

[Previous Routine] [List of Routines]

    #################################################
                    Main Function
    #################################################

(See projects/maven/sta/mvn_sta_programs/mvn_sta_sc_bins_load_test.pro)