####################################### # Generic FITS standard keywords ####################################### #FITS CDF Comment #---- --- ------- EXTNAME EXTNAME // HDU extension name DATE File_Creation_Date // File createion date OBSERVER PI_name // person/entity that acquired the data ORIGIN PI_affiliation // Institution/org who created the FITS file AUTHOR Author // Person who compiled the metadata INSTRUME Descriptor // Instrument OBJECT Object_Observed // Name of the object observed REFERENC TEXT // Reference where the data are published DATAMAX SCALEMAX // Max value in the array (physical) DATAMIN SCALEMIN // Min value in the array (physical) EQUINOX Equinox // Equinox in years for the celestial coordination CTYPE1 ctype1 // Name of the coordinate represented by axis 1 CTYPE2 ctype2 // Name of the coordinate represented by axis 2 CTYPE3 ctype3 // Name of the coordinate represented by axis 3 CRPIX3 crpx3 // Location of a reference point along axis 3 CRVAL3 crval3 // Value specified by CTYPE3 at CRPIX3 CDELT3 cdelt3 // Partial derivative specified by CTYPE3 at CRPIX3 CROTA1 crota1 // Rotation from CTYPE1 to a diff coordinate system CROTA2 crota2 // Rotation from CTYPE2 to a diff coordinate system CROTA3 crota3 // Rotation from CTYPE3 to a diff coordinate system # The following generic keywords are renamed for SOHO EIT TELESCOP Source_name // Satellite DATE-OBS Observation_Date // UTC at spacecraft (e.g. 29-FEB-96) TIME-OBS Observation_Time // Observation time (e.g. 23:39:25) CRPIX1 Sun_Center_X_Pixels // Sun center X, EIT pixels CRPIX2 Sun_Center_Y_Pixels // Sun center Y, EIT pixels CRVAL1 Sun_Center_X_Value // Value of sun center X CRPIX2 Sun_Center_Y_Value // Value of sun center Y CDELT1 Pixel_Scale_X // Pixel scale x (arc sec, fixed) = 2.629 CDELT2 Pixel_Scale_Y // Pixel scale y (arc sec, fixed) = 2.629 #################################################### # Guideline for all the instruments on SOHO # # Acronyms used in the comment field: # DA - Data Acquisition # ID - Identifier # SFDU - Standard Formatted Data Unit # S/C - Spacecraft # FOV - Field of View #################################################### SCI_OBJ Science_Ojective // The science objective SCI_SPEC Science_Specific_Ojective // A more specific science objective OBS_PROG Observing_Program // The observing program DATE_OBS Observation_Start_Time // DA start date/time of in UTC DATE_END Observation_End_Time // DA end date/time of in UTC OBT_TIME On-board_Start_Time // On-board DA start time in TAI seconds OBT_END On-board_End_Time // On-board DA end time in TAI seconds DEL_TIME Time_Difference // Time difference, in secs, from the DATE_OBS OBS_MODE Observing_Mode // Observing mode DETECTOR Detector // Detector used to acquire data OBS_SEQ Observing_Seq // The name of the observing sequence used EXPTIME Exposure_Time // Exposure time in seconds, millisecond accuracy OBJ_ID Object_ID // Object identifier, e.g. active region number SOLAR_P0 Solar_P0_Angle // The solar P0 angle SOLAR_B0 Solar_B0_Angle // The solar B0 angle (degrees) CAR_ROT Carrington_Rotation // Carrington rotation number WAVELNTH Observation_Wavelength // Observation wavelength in Angstroms WAVEMIN Min_Wavelength // Minimum observation wavelength in Angstroms WAVEMAX Max_Wavelength // Maximum observation wavelength in Angstroms FILENAME Filename // The name of the data file (e.g., 1234.fts) FILEORIG Orginal_Filename // Original filename as collected (eg, 1234.img) SFDUADID SFDU_Authority_desc_ID // SFDU Authority and Description ID CMP_NAME Coordinated_Observing_Program // Coordinated observing program name CMP_NO Coordinated_Program_ID // Unique ID for a coordinating program CMP_TYPE Coordinated_Program_Type // Type of CMP_NAME (JOP, Campaign) CMP_DESC Coordinated_Program_Description // Description of the CMP_NAME INSTITUT Coordinated_Program_Institution // Name of IT/institution of CMP_NAME PROG_ID Observing_Prorgam_ID // Observing progam ID PROG_NUM Observing_Prorgram_Unique_ID // Unique ID for the observing program COUNT Num_of_Repeated_Observing_Seq // # of repeated observing sequences within an observing program SEQ_NUM Observing_Seq_ID // Observing sequence number/ID SEQ_FROM First_Observing_Seq_Value // First value of SEQ_NUM SEQ_TO Last_Observing_Seq_Value // Last value of SEQ_NUM SEQ_IND Index_Of__Observing_Seq // Index of an observing sequence EXPCOUNT Num_Of_Exposures // # of exposures within obs seq EXP_IND Exposure_Index // Index of exposurei within obs seq SEQVALID Valid_Sequence // "Y" or "N" denoting whether data from an obs seq has scientic value SEQONLIN Sequence_Data_Online // "Y" or "N" denoting whether data from an obs seq is online or not COMMENTS Entry_In_DB_Commented // "Y" or "N" denoting whether an entry in a db is commented or not COMM_NO Comment_Num // Comment number - for online catalogs only DATE_MOD Catalog_Mod_date // Last modified entry date - for online catalogs only DET_X Pixel_Position_X // Pixel position within a dector along the X axix DET_Y Pixel_Position_Y // Pixel position within a dector along the Y axix INS_X Pointing_Of_Instrument_X // Pointing of instrument along the instrument X axix INS_Y Pointing_Of_Instrument_Y // Pointing of instrument along the instrument Y axix INS_X0 Pointing_Of_Instrument_SolarX // Pointing of instrument along the spacecraft/solar X-axix INS_Y0 Pointing_Of_Instrument_SolarY // Pointing of instrument along the spacecraft/solar Y-axix INS_ROLL Instrument_Roll_Angle // Instrument roll angle relative to the s/c SC_X0 Spacecraft_Pointing_SolarX // Pointing of s/c along the solar X-axix SC_Y0 Spacecraft_Pointing_SolarY // Pointing of s/c along the solar Y-axix SC_ROLL Spacecraft_Roll_Angle // Solar north + CCW from nominal SOLAR_X Pointing_to_Solar_X_Axis // General pointing to the solar X-axis SOLAR_Y Pointing_to_Solar_Y_Axis // General pointing to the solar Y-axis AZ_START Starting_Ecliptic_Azimuth // Starting ecliptic azimuth EL_START Starting_Ecliptic_Elevation // Starting ecliptic elevation AZ_END Ending_Ecliptic_Azimuth // Ending ecliptic azimuth EL_END Ending_Ecliptic_Elevation // Ending ecliptic elevation AZ Data_Point_Azimuth // The azimuth of a data point EL Data_Point_Elevation // The elevation of a data point XCEN Center_FOV_SolarX // Center of the instrument FOV along Solar X-axis YCEN Center_FOV_SolarY // Center of the instrument FOV along Solar Y-axis ANGLE Rotation_Angle // Rotation angle of the vertical axis of ins FOV relative to solar north IXWIDTH Max_FOV_Instrument_X // Max width of FOV in the instrument X axis IYWIDTH Max_FOV_Instrument_Y // Max width of FOV in the instrument Y axis #################################################### # SOHO EIT naming convention #################################################### DATASRC File_Type // File type? BUNIT Unit // Data unit (counts/pixel) FILTER Filter // Filter CFTEMP CCD_Cold_Finger_Temperature // CCD cold finger temperature (C) CCDTEMP CCD_Temperature // CCD temperature (DN/100) SOLAR_R Solar_Photospheric_Radius // Solar photospheric radius, EIT pixels HEC_X Heliocentric_Ecliptic_X // s/c heliocentric ecliptic X (km) HEC_Y Heliocentric_Ecliptic_Y // s/c heliocentric ecliptic Y (km) HEC_Z Heliocentric_Ecliptic_Z // s/c heliocentric ecliptic Z (km) ############################################################################# # The asterisk (*) is a placeholder indicator and its corresponding mapping # attribute is created in the output file. The following example creates # 2 attributes (P1 and P2), if uncommented. The value # of P1 and P2 will be "Placeholder 1" and "Placeholder 2", resctively. ############################################################################# # * P1 // Placeholder 1 # * P2 // Placeholder 2