Software
Suggested method for reading data within IDL:
swand.pro
The
IDL Astronomy Users Library
should be installed on your system (
download
).
Needed "IDL save" files:
offset+Zidl.dat
,
offset-Zidl.dat
orbitsohoidl.dat
SoHO orbit
rollangle.dat
nominal roll attitude of SoHO
MasqueBaf2.dat
Stars masks in ecliptic frame
Explanations on roll manoeuvres and up to date informations can be found
here
and
here
.
List of variables:
Counting rate (counts per second) of the 27 pixels of sensor +Z
(5 by 5 array + 2 side pixels)
DETSUZ (VARDET) FLOAT = Array[5065, 27]
Counting rate (counts per second) of the 27 pixels of sensor -Z
(5 by 5 array + 2 side pixels)
DETSU_Z (VARDET) FLOAT = Array[5062, 27]
Flatfield Correction factors for sensor +Z normalized to central pixel
FLATSUZ (DATAZ) FLOAT = Array[27]
Flatfield Correction factors for sensor -Z normalized to central pixel
FLATSU_Z (DATA_Z) FLOAT = Array[27]
Header of the fits file:
HEARDER (HEADER) STRING = Array[49]
Commanded position for the Inner Motor of Sensor +Z
INNMOTZ (VARDET) INT = Array[5065]
Commanded position for the Inner Motor of Sensor -Z
INNMOT_Z (VARDET) INT = Array[5062]
Measured position for the Inner Motor of Sensor +Z
INSUZ (VARDET) INT = Array[5065]
Measured position for the Inner Motor of Sensor 6Z
INSU_Z (VARDET) INT = Array[5062]
Decimal day variable of the data packets: Origin is 1995/01/01 Sensor +Z
JOURDEC1 (DATAZ) FLOAT = Array[5065]
Decimal day variable of the data packets: Origin is 1995/01/01 Sensor -Z
JOURDEC2 (DATA_Z) FLOAT = Array[5062]
Number of data packets for sensor +Z
NBRE1 LONG = 5065
Number of data packets for sensor -Z
NBRE2 LONG = 5062
Commanded position for the Outer Motor of Sensor +Z
OUTMOTZ (VARDET) INT = Array[5065]
Commanded position for the Outer Motor of Sensor -Z
OUTMOT_Z (VARDET) INT = Array[5062]
Measured position for the Outer Motor of Sensor +Z
OUTSUZ (VARDET) INT = Array[5065]
Measured position for the Outer Motor of Sensor -Z
OUTSU_Z (VARDET) INT = Array[5062]
State of the Hydrogen Cell (0 = cell is off) sensor +Z
SUZHCELL (VARDET) INT = Array[5065]
MCP High Voltage value for sensor +Z
SUZHVPS (VARDET) FLOAT = Array[5065]
State of the Hydrogen Cell (0 = cell is off) sensor -Z
SU_ZHCELL (VARDET) INT = Array[5062]
MCP High Voltage value for sensor -Z
SU_ZHVPS (VARDET) FLOAT = Array[5062]
Integration Time for sensor +Z
TIZ (VARDET) BYTE = Array[5065]
Integration Time for sensor -Z
TI_Z (VARDET) BYTE = Array[5062]
SOHO Orbit variables:
Time variable for the position and velocity variables
TEMPSOHO (POSITION) DOUBLE = Array[40740]
Velocity of SOHO wrt the Sun in km/s (ecliptic J2000)
VX_SOHO (VELOCITY) DOUBLE = Array[40740]
VY_SOHO (VELOCITY) DOUBLE = Array[40740]
VZ_SOHO (VELOCITY) DOUBLE = Array[40740]
SOHO position (x,y,z) normalized position, rr distance to Sun (ecliptic J2000)
RR_SOHO DOUBLE = Array[40740]
XX_SOHO (POSITION) DOUBLE = Array[40740]
YY_SOHO (POSITION) DOUBLE = Array[40740]
ZZ_SOHO (POSITION) DOUBLE = Array[40740]
Last updated on Wed, Sep 14, 2005
SF