General SOT FITS Keywords

The following table lists the keywords found in the FITS headers for both Level 0 SOT-SP and SOT-FG data files:

KeywordTypeDescription
DATEStrDate that a particular file was reformatted or created [UTC] (e.g. 2006-12-02T13:10:11.100)
DATE_RF0StrIndicates when the Level-0 reformatting was done [UTC] (e.g. 2006-12-02T13:10:11.100)
TELESCOPStrName of the satellite (e.g., HINODE)
INSTRUMEStrName of the instrument used to acquire the data: SOT-SP is indicated by SOT/SP, SOTFG NFI by SOT/NB, SOT-FG BFI by SOT/WB, and the SOT correlation tracker is indicated by SOT/CT
MDP_CLKIntTI (spacecraft) clock delivered by MDP at the exposure start [in units of 1/512 sec]
ORIGINStrIndicates where the Level 0 reformatted file was created (e.g., JAXA/ISAS, SIRIUS)
ORIG_RF0StrIndicates where the Level 0 reformatted file was created (e.g., JAXA/ISAS, SIRIUS)
DATA_LEVIntProcessing level of the data (equal to 0 for Level 0 data)
VER_RF0StrVersion number of the reformatting program used to create the Level 0 data
PROG_VERIntID of program (decimal, not hex)
SEQN_VERIntID of sequence (decimal, not hex)
PARM_VERIntID of parameter (decimal, not hex)
PROG_NOIntProgram slot number
SUBR_NOIntSubroutine number in program
SEQN_NOIntSequence slot number
MAIN_CNTIntRepeat count of the main program
MAIN_RPTIntRepeat number of the main routine (1–255 for repeat count, and 0 means infinite repeat)
MAIN_POSIntCurrent position in the main routine
SUBR_CNTIntCurrent repeat count of the subroutine
SUBR_RPTIntRepeat number of the subroutine
SUBR_POSIntCurrent position in the subroutine
SEQN_CNTIntCurrent repeat count of the sequence
SEQN_RPTIntRepeat number of the sequence
SEQN_POSIntCurrent position in the sequence
OBSTITLEStrTitle of the observation
TARGETStrDescription of the target region
SCI_OBJStrScientific objective of the observation
SCI_OBSStrScientific objective of the observation
OBS_DECStrDescription of the observation
JOIN_SBStrIndicates the HINODE instruments involved in the observation (S: SOT, X: XRT, E: EIS)
OBS_NUMIntHINODE observation number
JOP_IDIntJoint observations between HINODE and other instruments will be sequentially numbered
NOAA_NUMIntThe NOAA Active Region number for AR observations
OBSERVERStrName of the Chief Observer
PLANNERStrName of the Chief Planner
TOHBANSStrNames of the Real-Time Tohbans
DATATYPEStrIndicates whether data is science or for engineering test (either SCI or ENG)
FLFLGStrIndicates observations triggered by the flare flag (either FLR or NON)
FILEORIGStrIndicates which sci files were used at creation (e.g., 2007_0904_063717.sci)
MDPCTREFIntTI (spacecraft) clock delivered by MDP at the nearest CT reference [in units of 1/512 sec]
CTREFIntFPP CT clock at the nearest CT reference [in units of 1/584 sec]
CTRATEFltFPP CT clock speed [Hz] (e.g., 584.0)
TIMEERRFltTime error between TI clock and CT clock [sec]
OBT_TIMEIntStart time of the exposure in TI spacecraft clock [in units of 1/512 sec]
OBT_ENDIntEnd time of the exposure in TI spacecraft clock [in units of 1/512 sec]
DATE_OBSStrDate and time of the start time of the expsosure [UTC] (e.g., 2007-08-27T05:59:45.785)
TIME-OBSStrStart time of the exposure [UTC] (e.g., 05:59:45.785).
CTIMEStrDate and time at the start time of the expsosure in the calendar format [UTC] (e.g., Mon Aug 27 05:59:45 2007).
DATE_ENDStrDate and time of the end time of the exposure [UTC] (e.g., 2007-08-27T05:59:45.830).
SAAStrIndicates whether the satellite is in the South Atlantic Anomoly at the time of observation (either IN or OUT)
HLZStrIndicates whether the satellite is in the High Latitude Zone of auroral precipitation at the time of observation (either IN or OUT)
SC_ATTXFltHeliocentric coordinate (X) of AOCS pointing [arcsec]
SC_ATTYFltHeliocentric coordinate (Y) of AOCS pointing [arcsec]
SAT_ROTFltDifference between Solar North and the Y-axis of the satellite [degrees]
INST_ROTFltDifference between the Y-axis of the satellite and the images [degrees]
CROTA1FltDifference between Solar North and the Y-axis of the image, equal to SAT_ROT+INST_ROT [degrees]
CROTA2FltDifference between Solar North and the X-axis of the image, equal to SAT_ROT+INST_ROT [degrees]
TR_MODEStrAOCS tracking curve in use (TR1, TR2, TR3, or TR4) or FIX if no tracking curve was in use
PCK_SN0IntSerial number of the first packet of the image
PCK_SN1IntSerial number of the last packet of the image
NUM_PCKSIntNumber of image packets used to construct the FITS file
MACROIDIntSequential number of the macro-command delivered by MDP
WAVEStrBrief description of observed ion and/or wavelength (e.g., G band 4305 for SOT-FG or 6302A for SOT-SP)
OBS_TYPEStrString idenitifying the type of observation (e.g., FG (simple) for SOT-FG or SP IQUV 4D array for SOT-SP)
BITCOMP1IntBit-compression parameter for unsigned data: 0 indicates none, 1 indicates 16U->12, 2 indicates 14U->12, and 6 indicates 12U low
IMGCOMP1IntImage-compression parameter for unsigned data: 0 indicates none, 3 indicates 12-bit DPCM, and 7 indicates 12-bit JPEG
QTABLE1IntQ-table number (approximately the compression ratio ×100) for unsigned data: 0=98, 1=90, 2=75, 3=50, 4=95, 5=92, 6=85, and 7=65
BITCOMP2IntBit-compression parameter for signed data: 0 indicates none, 3 indicates 16S->12, 4 indicates 14.5S->12, and 5 indicates 13S->12
IMGCOMP2IntImage-compression parameter for signed data: 0 indicates none, 3 indicates 12-bit DPCM, and 7 indicates 12-bit JPEG
QTABLE2IntQ-table number (approximately the compression ratio ×100) for signed data: 0=98, 1=90, 2=75, 3=50, 4=95, 5=92, 6=85, and 7=65
ROISTARTIntCamera read-out parameter of ROI start
ROISTOPIntCamera read-out parameter of ROI stop
CAMGAINIntNumerical ID of Camera gain (0–3)
CAMDACAIntNumerical ID of DAC offset A (0–15)
CAMDACBIntNumerical ID of DAC offset B (0–15)
CAMPSUMIntCamera parallel summing (X-direction) (either 1, 2, or 4)
CAMSSUMIntCamera serial summing (Y-direction) (either 1, 2, or 4)
CAMAMPIntNumerical ID of camera amplifier (0 or 1)
CAMSCLKIntNumerical ID of camera serial clock direction (0 or 1)
CTSERVOIntCT servo status: 0=off and 1=on
CTMESTATIntCTM-E status bit field
CTMEXIntCTM tip-tilt mirror X-tilt (CTM 2nd word) [0.0005″]
CTMEYIntCTM tip-tilt mirror Y-tilt (CTM 3rd word) [0.0005″]
CTMODEIntCorrelation tracker mode bit field
WEDGEIntPosition of CT wedge filter [scan steps]
FOCUSIntPosition of FPP focusing lens [focus steps]
T_SPCCDFltTemperature of the SP CCD at the camera head [°C]
T_FGCCDFltTemperature of the FG CCD at the camera head [°C]
T_CTCCDFltTemperature of the CT CCD at the camera head [°C]
T_SPCEBFltTemperature of the SP camera electronics box [°C]
T_FGCEBFltTemperature of the FG camera electronics box [°C]
T_CTCEBFltTemperature of the CT camera electronics box [°C]
PMUDELAYIntPhase offset between the PMU signal and the signal sent to the camera
TIMESYSStrIndicates the time system of the data (e.g., UTC)
EXPTIMEFltExposure time requested by the command [sec]
BITCVER1IntVersion number of the bit compression table
DCHFVER1IntVersion number of the JPEG Huffman-DC table
ACHFVER1IntVersion number of the JPEG Huffman-AC table
QTABVER1IntVersion number of the Q table for JPEG compression
BITCVER2IntVersion number of the bit compression table
DCHFVER2IntVersion number of the JPEG Huffman-DC table
ACHFVER2IntVersion number of the JPEG Huffman-AC table
QTABVER2IntVersion number of the Q table for JPEG compression
BYTECNTIIntTotal number of bytes of the compressed unsigned data [bytes]
PIXCNTIIntTotal number of pixels of the compressed unsigned data [pixels]
BITSPPIFltAverage bits/pixel of the unsigned data [bits/pixel]
BYTECNTQIntTotal number of bytes of the compressed signed data [bytes]
PIXCNTQIntTotal number of pixels of the compressed signed data [pixels]
BITSPPQFltAverage bits/pixel of the signed data [bits/pixel]