Module
Name |
Package File |
Author |
Type |
Language |
Date Submitted |
Purpose |
Keywords |
Notes |
References |
URLs |
|
ncdump |
netCDF download site for tar or zip file |
Unidata |
netCDF |
C |
02-Sep-97 |
The ncdump tool generates the CDL text representation of a netCDF file on standard output. |
netCDF |
Usable as a simple browser for netCDF data files, to display the dimension names and sizes; variable names, types, and shapes;
attribute names and values; and optionally, the values of data for all variables or selected variables in a netCDF file. |
|
http://www.unidata.ucar.edu/
staff/russ/netcdf/guidec/guidec-
15.html#MARKER-2-3254 |
|
read_netcdf |
read_netcdf download site |
T. Woods |
netCDF |
IDL |
27-Oct-99 |
read netCDF file into IDL structures |
netCDF |
The read_netCDF.pro is a generic reader of netCDF files that returns the data back into an IDL structure and attributes back into a string array. |
|
ftp://laspftp.colorado.edu/pub
/see/netCDF/readme.txt |
|
eci2geo.pro |
geom1.tar.Z |
R. DeMajistre |
Pointing/Attitude |
IDL |
31-Dec-97 |
Convert vectors in ECI coordinates to geocentric (cartesian) Coordinates |
pointing |
Requires the module sun.pro |
C.T. Russel, Geophysical Coordinate Transformations, Cosmic Electrodynamics, 2,1971,pp 184-196. |
http://www-ssc.igpp.ucla.edu/
personnel/russell/papers/gct1.html/ |
|
geoc2geod.pro |
geom1.tar.Z |
R. DeMajistre |
Pointing/Attitude |
IDL |
31-Dec-97 |
Convert geocentric latitude and altitude to geodetic altitude and latitude |
pointing, geodetic |
Will operate on arrays of positions |
Hedman, J. Spacecraft, v7, 8, aug 1970 |
|
|
geod2geoc.pro |
geom1.tar.Z |
R. DeMajistre |
Pointing/Attitude |
IDL |
31-Dec-97 |
Convert geodetic latitude and altitude to geocentric altitude and latitude |
pointing, geodetic |
Inverse of geoc2geod. Uses IDL function 'newton'. Will not operate on arrays of positions |
Hedman, J. Spacecraft, v7, 8, aug 1970 |
|
|
sc2eci_mat.pro |
geom1.tar.Z |
R. DeMajistre |
Pointing/Attitude |
IDL |
21-Apr-00 |
build rotation matrix from quaternions |
pointing, quaternion |
Use to build spacecraft to ECI rotation matrix from attitude data |
|
|
|
sun.f |
geom1.tar.Z |
R. DeMajistre |
Pointing/Attitude |
FORTRAN |
31-Dec-97 |
Calculate the position of the sun (RA,DEC, siderial time) |
pointing, sun, time |
Original source for sun.pro. This may have ignore the ommision of the year 2000 leap year |
C.T. Russel, Geophysical Coordinate Transformations, Cosmic Electrodynamics, 2,1971,pp 184-196. |
http://www-ssc.igpp.ucla.edu/
personnel/russell/papers/gct1.html/ |
|
sun.pro |
geom1.tar.Z |
R. DeMajistre |
Pointing/Attitude |
IDL |
21-Apr-00 |
Calculate the position of the sun (RA,DEC, siderial time) |
pointing, sun, time |
IDL proceedure modeled after sun.f. Year 2000 'not-leapyear' accounted for by IDL JULDAY. Accepts arrays. |
C.T. Russel, Geophysical Coordinate Transformations, Cosmic Electrodynamics, 2,1971,pp 184-196. |
http://www-ssc.igpp.ucla.edu/
personnel/russell/papers/gct1.html/ |
|
tanhgt.pro |
geom1.tar.Z |
R. DeMajistre |
Pointing/Attitude |
IDL |
31-Dec-97 |
Calculate tangent point height and latitude given an observers's position vector and a unit pointing vector (both ECI). Optionally returns pierce point |
pointing, geodetic |
The earth radius can be adjusted to allow heights from layers above the earth's surface. Based on equations derived from the author. Use with care. |
|
|
|
timeconv.pro |
geom1.tar.Z |
R. DeMajistre |
Time |
IDL |
21-Apr-00 |
Convert gps -> UTC time |
time, gps |
Requires number of leap seconds to be input. Routines for both scalars and arrays. Returns a structure for UTC that is used elsewhere in this package |
|
|
