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Last modified: Thu Aug 6 12:53:14 2020.
PROCEDURE:
kgy_calc_bcon
PURPOSE:
Calculates B connection between s/c and the Moon
CALLING SEQUENCE:
kgy_calc_bcon, tvar_Rme = 'kgy_lmag_Rme', tvar_Bme = 'kgy_lmag_Bme'
KEYWORDS:
tvar_Rme: tplot variable of s/c position in ME coordinates
tvar_Bme: tplot variable of B vector in ME coordinates
Output tplot variables:
'kgy_lmag_Bcon_flg' = Magnetic connection flag:
0 (black) for no connection,
1 (green) for anti-para connection (-B ==> Moon),
2 (red) for parallel connection (+B ==> Moon)
'kgy_lmag_bimpact' = distant along the field line from s/c to footpoint
'kgy_lmag_fp_lat' = footpoint latitude in ME coordinates
'kgy_lmag_fp_lon' = footpoint longitude in ME coordinates
'kgy_lmag_belev' = B elevation angle from the surface at the footpoint
'kgy_lmag_surfloc' = footpoint location (normalized by rL)
CREATED BY:
Yuki Harada
- modified from 'art_bconnect_bres.pro' written by Andrew Poppe
- tvar_Rme and tvar_Bme should have the same time array
(time interpolation not included)
$LastChangedBy: haraday $
$LastChangedDate: 2016-09-18 17:19:45 -0700 (Sun, 18 Sep 2016) $
$LastChangedRevision: 21853 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_4_0/projects/kaguya/map/lmag/kgy_calc_bcon.pro $
(See projects/kaguya/map/lmag/kgy_calc_bcon.pro)
COMMON BLOCK:
kgy_lmag_com
PURPOSE:
stores the LMAG static memory
lmag_*_arr: strcuture arrays which contain time (seconds since
1970) and vector/scalar data
CREATED BY:
Yuki Harada on 2014-06-29
$LastChangedBy: haraday $
$LastChangedDate: 2016-09-09 11:33:47 -0700 (Fri, 09 Sep 2016) $
$LastChangedRevision: 21810 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_4_0/projects/kaguya/map/lmag/kgy_lmag_com.pro $
(See projects/kaguya/map/lmag/kgy_lmag_com.pro)
PROCEDURE:
kgy_read_lmag
PURPOSE:
reads in Kaguya MAP/LMAG files
and stores data in a common block (kgy_lmag_com)
CALLING SEQUENCE:
kgy_read_lmag, files, trange=trange
INPUTS:
files: full paths to the LMAG files (gziped or decompressed)
e.g., [ 'dir/mag20080101.7.all.1sec.gz', $
'dir/mag20080101.7.sat.1sec.gz', $
'dir/mag20080101_00.7.sat.32hz.gz', ... ]
KEYWORDS:
trange: time range (optional, Def. all),
['yyyy-mm-dd/hh:mm:ss','yyyy-mm-dd/hh:mm:ss']
Any format compatible with 'time_double' is acceptable.
NOTES:
Invalid data elements = 999.99 -> NaNs
CREATED BY:
Yuki Harada on 2014-06-30
$LastChangedBy: haraday $
$LastChangedDate: 2016-09-09 11:33:47 -0700 (Fri, 09 Sep 2016) $
$LastChangedRevision: 21810 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_4_0/projects/kaguya/map/lmag/kgy_read_lmag.pro $
(See projects/kaguya/map/lmag/kgy_read_lmag.pro)
PROCEDURE:
kgy_svm_com
PURPOSE:
stores SVM data
CREATED BY:
Yuki Harada on 2018-05-02
$LastChangedBy: haraday $
$LastChangedDate: 2018-05-08 16:47:27 -0700 (Tue, 08 May 2018) $
$LastChangedRevision: 25186 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_4_0/projects/kaguya/map/lmag/kgy_svm_com.pro $
(See projects/kaguya/map/lmag/kgy_svm_com.pro)
FUNCTION:
kgy_svm_get
PURPOSE:
Returns model lunar B vector computed from SVM (Tsunakawa et al., 2015)
Works in selenographic coordinates
CALLING SEQUENCE:
bvec = kgy_svm_get(rvec)
INPUT:
rvec: 3xN array containing X, Y, Z in km
OUTPUT:
bvec: 3xN array containing Bx, By, Bz in nT
CREATED BY:
Yuki Harada on 2018-05-02
Modified from Bcal.f90 written by H. Tsunakawa
The original version is available at
http://www.geo.titech.ac.jp/lab/tsunakawa/Kaguya_LMAG
REFERENCE:
Tsunakawa, H., F. Takahashi, H. Shimizu, H. Shibuya, and M. Matsushima (2015), Surface vector mapping of magnetic anomalies over the Moon using Kaguya and Lunar Prospector observations, J. Geophys. Res. Planets, 120, 1160–1185, doi:10.1002/2014JE004785.
$LastChangedBy: haraday $
$LastChangedDate: 2018-05-08 16:47:27 -0700 (Tue, 08 May 2018) $
$LastChangedRevision: 25186 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_4_0/projects/kaguya/map/lmag/kgy_svm_get.pro $
(See projects/kaguya/map/lmag/kgy_svm_get.pro)
PROCEDURE:
kgy_svm_load
PURPOSE:
Downloads and reads in SVM data files
CREATED BY:
Yuki Harada on 2018-05-02
$LastChangedBy: haraday $
$LastChangedDate: 2018-05-15 00:54:22 -0700 (Tue, 15 May 2018) $
$LastChangedRevision: 25223 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_4_0/projects/kaguya/map/lmag/kgy_svm_load.pro $
(See projects/kaguya/map/lmag/kgy_svm_load.pro)
PROCEDURE:
kgy_svm_pred
PURPOSE:
Computes crustal B at Kaguya positions from SVM (Tsunakawa et al., 2015)
CALLING SEQUENCE:
kgy_svm_pred,trange=time_double('2008-01-01/'+['02:00','04:00'])
OPTIONAL KEYWORDS:
trange: time range (Def: timerange())
resolution: time resolution (Def: 4)
spice_frame: additional output B frame
available frames: SELENE_M_SPACECRAFT, SSE, GSE
CREATED BY:
Yuki Harada on 2018-05-08
$LastChangedBy: haraday $
$LastChangedDate: 2018-05-15 23:37:33 -0700 (Tue, 15 May 2018) $
$LastChangedRevision: 25226 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_4_0/projects/kaguya/map/lmag/kgy_svm_pred.pro $
(See projects/kaguya/map/lmag/kgy_svm_pred.pro)