#=====General Series Information===== Seriesname: hmi.V_720s_dconS Author: "couvidat" Owner: production Unitsize: 120 Archive: 1 Retention: 10000 StagingRetention: 3 Tapegroup: 1001 PrimeKeys: T_REC, CAMERA DBIndex: T_REC, CAMERA Description: "Dopplergrams with a cadence of 720 seconds, scattered light corrected." #=====Links===== #=====Keywords===== Keyword:DATE, time, variable, record, -4712.01.01_11:59:28Z, "0", "ISO", "HDU creation date - the date and time this HDU was created" Keyword:DATE__OBS, time, variable, record, -4712.01.01_11:59:28.00Z, "2", "ISO", "[DATE-OBS] Observation date - the date the observation started (= T_OBS - (Exposure time) / 2.0)" Keyword:TELESCOP, string, constant, record, "SDO/HMI", "%s", "none", "Telescope - the instrument that captured the image and created the metadata" Keyword:INSTRUME, string, variable, record, "", "%s", "none", "For HMI: HMI_SIDE1, HMI_FRONT2, or HMI_COMBINED" Keyword:WAVELNTH, float, constant, record, 6173.0, "%.1f", "angstrom", "Wavelength - the wavelength of the telescope optical filter" Keyword:CAMERA, int, variable, record, -2147483648, "%d", "none", "Camera - the ID of the camera(s) used to acquire image data" Keyword:BUNIT, string, constant, record, "m/s", "%s", "none", "Physical Units - the physical units of the image pixel values, after linear scaling by BSCALE/BZERO" Keyword:ORIGIN, string, constant, record, "SDO/JSOC-SDP", "%s", "none", "Origin - the organization or institution that created this FITS file" Keyword:CONTENT, string, constant, record, "DOPPLERGRAM", "%s", "none", "Content - the type of data product" Keyword:QUALITY, int, variable, record, 0x80000000, "0x%08x", "none", "Level 1.5 quality - the level 1.5 quality bit field" Keyword:QUALLEV1, int, variable, record, 0x80000000, "0x%08x", "none", "Level 1 quality - the level 1 quality bit field" Keyword:HISTORY, string, variable, record, "", "%s", "none", "processing history of data" Keyword:COMMENT, string, variable, record, "", "%s", "none", "commentary on the data" Keyword:BLD_VERS, string, variable, record, "", "%s", "none", "Code release build number of program that created this record" Keyword:HCAMID, int, variable, record, -2147483648, "%d", "none", "HMI_SEQ_ID_EXP_PATH" Keyword:SOURCE, string, variable, record, "", "%s", "none", "level 1 filtergrams used to produce the observables" Keyword:TOTVALS, int, variable, record, -2147483648, "%d", "none", "Total values - the number of data-product pixels" Keyword:DATAVALS, int, variable, record, -2147483648, "%d", "none", "Data values - the number of data-product pixels with a non-missing data value (= TOTVALS - MISSVALS)" Keyword:MISSVALS, int, variable, record, -2147483648, "%d", "none", "Missing values - the number of data-product pixels with a missing data value (= TOTVALS - DATAVALS)" Keyword:SATVALS, int, variable, record, -2147483648, "%d", "none", "Saturated values" Keyword:DATAMIN2, float, variable, record, nan, "%f", "m/s", "Minimum value 2 - the minimum value of all pixels" Keyword:DATAMAX2, float, variable, record, nan, "%f", "m/s", "Maximum value 2 - the maximum value of all pixels" Keyword:DATAMED2, float, variable, record, nan, "%f", "m/s", "Median value 2 - the median value of all pixels" Keyword:DATAMEA2, float, variable, record, nan, "%f", "m/s", "Mean value 2 - the mean value of all pixels" Keyword:DATARMS2, float, variable, record, nan, "%f", "m/s", "RMS 2 - the RMS of the deviations of all pixel values from the mean pixel value" Keyword:DATASKE2, float, variable, record, nan, "%f", "m/s", "Skewness 2 - the skewness of the probability distribution of all pixel values" Keyword:DATAKUR2, float, variable, record, nan, "%f", "m/s", "Kurtosis 2 - the kurtosis of the probability distribution of all pixel values" Keyword:DATAMIN, float, variable, record, nan, "%f", "m/s", "Minimum value - the minimum value of all pixels within a to-center distance of 99% of the solar radius" Keyword:DATAMAX, float, variable, record, nan, "%f", "m/s", "Maximum value - the maximum value of all pixels within a to-center distance of 99% of the solar radius" Keyword:DATAMEDN, float, variable, record, nan, "%f", "m/s", "Median value - the median value of all pixels within a to-center distance of 99% of the solar radius" Keyword:DATAMEAN, float, variable, record, nan, "%f", "m/s", "Mean value from pixels within 99% of solar radius" Keyword:DATARMS, float, variable, record, nan, "%f", "m/s", "RMS - the RMS of the deviations of all pixel values within a to-center distance of 99% of the solar radius from the mean pixel value" Keyword:DATASKEW, float, variable, record, nan, "%f", "m/s", "Skewness - the skewness of the probability distribution of all pixel values within a to-center distance of 99% of the solar radius" Keyword:DATAKURT, float, variable, record, nan, "%f", "m/s", "Kurtosis - the kurtosis of the probability distribution of all pixel values within a to-center distance of 99% of the solar radius" Keyword:RAWMEDN, float, variable, record, nan, "%f", "m/s", "Raw median value - the raw median value of all pixels within a to-center distance of 99% of the solar radius" Keyword:CTYPE1, string, constant, record, "HPLN-TAN", "%s", "none", "CTYPE1: HPLN-TAN (SOLARX)" Keyword:CTYPE2, string, constant, record, "HPLT-TAN", "%s", "none", "CTYPE2: HPLT-TAN (SOLARY)" Keyword:CRPIX1, float, variable, record, nan, "%.6f", "pixel", "CRPIX1: location of the Sun center in CCD x direction" Keyword:CRPIX2, float, variable, record, nan, "%.6f", "pixel", "CRPIX2: location of the Sun center in CCD y direction" Keyword:CRVAL1, float, constant, record, 0.000000, "%.6f", "arcsec", "CRVAL1: x origin - center of the solar disk" Keyword:CRVAL2, float, constant, record, 0.000000, "%.6f", "arcsec", "CRVAL2: y origin - center of the solar disk" Keyword:CDELT1, float, variable, record, nan, "%.6f", "arcsec/pixel", "image scale in the x direction" Keyword:CDELT2, float, variable, record, nan, "%.6f", "arcsec/pixel", "image scale in the y direction" Keyword:CUNIT1, string, constant, record, "arcsec", "%s", "arcsec", "CUNIT1: arcsec" Keyword:CUNIT2, string, constant, record, "arcsec", "%s", "arcsec", "CUNIT2: arcsec" Keyword:CROTA2, float, variable, record, nan, "%.6f", "deg", "CROTA2: INST_ROT + SAT_ROT" Keyword:CRDER1, float, variable, record, nan, "%.6f", "arcsec", "CRDER1: estimate of random error in coordinate x" Keyword:CRDER2, float, variable, record, nan, "%.6f", "arcsec", "CRDER2: estimate of random error in coordinate y" Keyword:CSYSER1, float, variable, record, nan, "%.6f", "arcsec", "CSYSER1: estimate of systematic error in coordinate x" Keyword:CSYSER2, float, variable, record, nan, "%.6f", "arcsec", "CSYSER2: estimate of systematic error in coordinate y" Keyword:WCSNAME, string, constant, record, "Helioprojective-cartesian", "%s", "none", "WCS system name" Keyword:DSUN_OBS, double, variable, record, nan, "%.2f", "m", "Distance from SDO to Sun center." Keyword:DSUN_REF, double, constant, record, 149597870691, "%.0f", "m", "Astronomical Unit" Keyword:RSUN_REF, double, constant, record, 696000000, "%.0f", "m", "Reference radius of the Sun: 696,000,000.0 m" Keyword:CRLN_OBS, float, variable, record, nan, "%.6f", "deg", "Carrington longitude of the observer" Keyword:CRLT_OBS, float, variable, record, nan, "%.6f", "deg", "Carrington latitude of the observer" Keyword:CAR_ROT, int, variable, record, -2147483648, "%d", "none", "Carrington rotation number of CRLN_OBS" Keyword:OBS_VR, double, variable, record, nan, "%.6f", "m/s", "velocity of the observer in radial direction. + is away from Sun" Keyword:OBS_VW, double, variable, record, nan, "%.6f", "m/s", "velocity of the observer solar-westward. + in rough direction of Earth orbit" Keyword:OBS_VN, double, variable, record, nan, "%.6f", "m/s", "velocity of the observer solar-northward (heliographic). + to north" Keyword:RSUN_OBS, double, variable, record, nan, "%.6f", "arcsec", "angular radius of Sun. Corresponds to arcsin(RSUN_REF/DSUN_OBS)" Keyword:T_OBS, time, variable, record, -4712.01.01_11:59:28_TAI, "0", "TAI", "nominal time" Keyword:T_REC, time, ts_eq, record, -4712.01.01_11:59:28_TAI, "0", "TAI", "Slot time" Keyword:T_REC_epoch, time, constant, record, 1993.01.01_00:00:00_TAI, "0", "TAI", "Time of origin" Keyword:T_REC_step, float, constant, record, 720.0, "%.1f", "seconds", "ts_eq step" Keyword:T_REC_unit, string, constant, record, "secs", "%s", "none", "ts_eq unit" Keyword:CADENCE, float, constant, record, 720.0, "%.1f", "seconds", "repetition interval" Keyword:DATASIGN, int, constant, record, -1, "%d", "none", "DATASIGN: sign of observable quantity wrt Sun center" Keyword:HFLID, int, variable, record, -2147483648, "%d", "none", "HMI_SEQ_ID_FRAMELIST" Keyword:HCFTID, int, variable, record, -2147483648, "%d", "none", "HMI_SEQ_ID_FOCUS" Keyword:QLOOK, int, constant, record, 0, "%d", "none", "QLOOK: 0=final data, 1=quick-look data" Keyword:CAL_FSN, int, variable, record, -2147483648, "%d", "none", "FSN of the look-up table used to produce the observables" Keyword:LUTQUERY, string, variable, record, "", "%s", "none", "query used for the look-up tables" Keyword:TSEL, float, variable, record, nan, "%f", "degree Celsius", "temperature keyword for polarization calibration" Keyword:TFRONT, float, variable, record, nan, "%f", "degree Celsius", "temperature keyword for polarization calibration" Keyword:TINTNUM, int, variable, record, -2147483648, "%d", "none", "number of points used for the temporal averaging" Keyword:SINTNUM, int, variable, record, -2147483648, "%d", "none", "number of points used for the spatial interpolation" Keyword:DISTCOEF, string, variable, record, "", "%s", "none", "path to the distortion coefficient table used to produce the data" Keyword:ROTCOEF, string, variable, record, "", "%s", "none", "path to the differential-rotation coefficient table used to produce the data" Keyword:ODICOEFF, int, variable, record, -2147483648, "%d", "none", "order of the distortion-coefficient polynomials" Keyword:OROCOEFF, int, variable, record, -2147483648, "%d", "none", "order of the differential-rotation polynomials" Keyword:POLCALM, int, variable, record, -2147483648, "%d", "none", "method used by the polarization calibration subroutine" Keyword:CODEVER0, string, variable, record, "", "%s", "none", "version of the l.o.s. observable code used to produce the data" Keyword:CODEVER1, string, variable, record, "", "%s", "none", "version of the gapfilling subroutine used to produce the data" Keyword:CODEVER2, string, variable, record, "", "%s", "none", "version of the temporal interpolation subroutine used to produce the data" Keyword:CODEVER3, string, variable, record, "", "%s", "none", "version of the polarization calibration subroutine used to produce the data" Keyword:CALVER64, longlong, variable, record, 0x0000000000000000, "0x%016llX", "none", "Calibration Version" #=====Segments===== Data: Dopplergram, variable, short, 2, 4096, 4096, "m/s", fits, "compress Rice", 0.000000, 0.500000, "Dopplergram"