HMI Ring Diagrams
Data Product Descriptions

gong.mrvzi

Description

This is an experimental series presumably intended to directly mirror records in the GONG data series of merged Dopplergrams mrvzi. It contains a total of 59,040 per-minute records with prime key T_REC values in the range 2001.07.22_00:00:46_GPS through 2001.08.31_23:59:46_GPS (1440 per day for 41 days), The SUMS data containing the images are supposed to have been archived; however, only some of the SUMS data were in fact archived:

07.22_14:00 – 23:59
07.23_12:00 – 23:59
07.24_00:00 – 09:59, 14:00 – 23:59
07.25_00:00 – 09:59, 12:00 – 23:59
07.26_00:00 – 09:59, 12:00 – 23:59
07.27_00:00 – 05:59, 12:00 – 23:59
07.28_00:00 – 07:59, 14:00 – 23:59
07.29_00:00 – 09:59, 16:00 – 23:59
07.30_00:00 – 03:59, 06:00 – 23:59
07.31_00:00 – 08.02_21:59
08.03_00:00 – 08.06_09:59
08.06_12:00 – 21:59
08.07_00:00 – 08.08_07:59
08.08_12:00 – 08.10_23:59
08.11_06:00 – 08.12_21:59
08.13_00:00 – 21:59
08.14_00:00 – 23:59
08.15_06:00 – 21:59
08.16_06:00 – 19:59
08.17_08:00 – 08.19_05:59
08.19_08:00 – 08.20_03:59
08.20_08:00 – 08.22_21:59
08.23_00:00 – 08.24_05:59
08.24_08:00 – 08.27_11:59
08.27_14:00 – 08.28_03:59
08.28_14:00 – 08.29_03:59
08.29_14:00 – 08.30_09:59
08.30_14:00 – 08.31_09:59
08.31_14:00 – 23:59

Hours for which no SUMS data were archived likely correspond to hours during which no valid mrvzi Dopplergrams exist.

For comparison, here is the keylist for the first record corresponding to a valid image in this series, compared with the FITS header for the original (mirrored) record:

**** original (from file mrvzi010722t1446.fits in sha.dsds[gong+][lev1mrg][vel_01d][568]) ****

SIMPLE  =                    T / Fits standard
BITPIX  =                   16 / Bits per pixel
NAXIS   =                    2 / Number of axes
NAXIS1  =                  839 / Axis length
NAXIS2  =                  839 / Axis length
EXTEND  =                    F / File may contain extensions
IRAF-TLM= '16:26:24 (23/01/2004)' / Time of last modification
BSCALE  =      2.3439331437E-2  /  REAL = TAPE*BSCALE + BZERO
BZERO   =       4.8974426270E1  /
OBJECT  = 'Merged image for 2001/07/22 14:46:16'
ORIGIN  = 'KPNO-IRAF'           /
DATE    = '2003-11-25T02:46:45'
IRAF-MAX=           8.168469E2  /  DATA MAX
IRAF-MIN=          -7.188981E2  /  DATA MIN
ORIGIN  = 'NOAO-IRAF FITS Image Kernel December 2001' / FITS file originator
DATE    = '2003-11-24T22:26:56'
MAP_TYPE= 'Circular, Solar North at top, Solar East at left'
ITIME   =                  60.
DATE-OBS= '2001/07/22'
TIME-OBS= '14:46:16'
SITENAME= 'Merged Network image'
SITE    = 'MR      '
GHISTSEQ=                    5
GHIST000= 'Task IMMERGE V3.50 (03/11/24 15:26:53, V01.7.1)'
GHIST001= 'gong_day=2001/07/22,data_type=vzi,map_type=circular,scale=400.,t'
GHIST002= 'rim_file=grasplib$plm_200_coarse,itime=60,start_seconds=16,xorde'
GHIST003= 'r=5,yorder=5,xterms=yes,syn_sid_cor=yes,restore=no,finterp=0,int'
GHIST004= 'erpolant=sinc,orientation=counter,bb_bsgn=1.,ct_bsgn=-1.,td_bsgn'
GHIST005= '=1.,ud_bsgn=-1.,le_bsgn=1.,ml_bsgn=-1.'
TYPE    =                    0
DTYPE   = 'V       '
VELSCALE=                   1.
VEL_BIAS=                   0.
VCOR1   =                   0.
OFFSET  =                   0.
FNDLMBXC=                419.5
FNDLMBYC=                419.5
FNDLMBMA=                 400.
FNDLMBMI=                 400.
FNDLMBAN=                   0.
C_MA    =                 400.
C_MI    =                 400.
PIXLENX =                   1.
PIXLENY =                   1.
B0      =     5.02608206241373
L0      =     62.4795874500001
P_ANGLE =                   0.
SEMIDIAM=    0.004579395384796
DELTA_L0=   -0.767281035412452
N_IMGMRG=                    1
MRG_IM01= 'bbvzi010722t1446'
INORM   =                    T
END

**** sample keylist for gong.mrvzi[2010.07.22_14:46:46_GPS]) ****

T_REC=2001.07.22_14:46:46_GPS
OBJECT="Merged image for 2001/07/22 14:46:16"
DATE="2003-11-25T02:46:45"
DATE__OBS="2001/07/22"
TIME__OBS="14:46:16"
T_OBS=2001.07.22_14:46:46_GPS
CRPIX1=420.000000
CRPIX2=420.000000
CRVAL1=0.000000
CRVAL2=0.000000
CDELT1=2.361420
CDELT2=2.361420
CROTA1=0.000000
CROTA2=0.000000
XCEN=0.000000
YCEN=0.000000
CUNIT1="arcsec"
CUNIT2="arcsec"
CADENCE=60.000000
QUALITY=00000000
IMG_P=0
EPH_B0=5.026082
EPH_L0=62.479587
EPH_R0=0.004579
CAR_ROT=1978
IMG_X0=419.500000
IMG_Y0=419.500000
IMG_MI=400.000000
IMG_MA=400.000000
IRAFNAME="0"
IRAF__MAX=816.846900
IRAF__MIN=-718.898100
IRAF__BPX=0
VELSCALE=1.000000
VEL_BIAS=0.000000
VCOR1=0.000000
GONG_OFFSET=0.000000
FNDLMBXC=419.500000
FNDLMBYC=419.500000
FNDLMBMA=400.000000
FNDLMBMI=400.000000
FNDLMBAN=0.000000
C_MA=400.000000
C_MI=400.000000
PIXLENX=1.000000
PIXLENY=1.000000
B0=5.026082
L0=62.479587
P_ANGLE=0.000000
SEMIDIAM=0.004579
DELTA_L0=-0.767281
N_IMGMRG=1
MRG_IMGLST="bbvzi010722t1446"
INORM="T"
ORIGIN="National Solar Observatory (GONG)"
OBS__SITE="NSO/GONG NETWORK"
TELESCOP="NSO-GONG"
OBS__URL="http://gong.nso.edu"
DATATYPE="REAL"
WAVELNTH=676.800000
WCSNAME="Helioprojective-Cartesian"
CTYPE1="HPLN-TAN"
CTYPE2="HPLT-TAN"
IMTYPE="VELOCITY"
IRAFTYPE="REAL"
MAP_TYPE="Circular, Solar North at top, Solar East at left"
SITENAME="Merged Network image"
SITE="MR"
TYPE=0
ITIME=60.000000
VUNIT="m/s"
DTYPE="V"
T_REC_step=60.000000
T_REC_epoch=1993.01.01_00:00:46_GPS

JSOC Series Definition

#=====General Series Information=====
Seriesname:      	gong.mrvzi
Author:          	"Irene Gonzalez"
Owner:           	slony
Unitsize:        	120
Archive:         	1
Retention:       	1000
StagingRetention:       3
Tapegroup:       	8
PrimeKeys:       	T_REC
Description:     	"Copy of NSO GONG merge velocity image series"

#=====Links=====

#=====Keywords=====
Keyword:T_REC, time, ts_eq, record, -4712.01.01_11:59:09_GPS, "0", "GPS", "GPS Reference Time at center of integration"
Keyword:OBJECT, string, variable, record, "0", "%s", "none", "Name of the object observed"
Keyword:DATE, string, variable, record, "NaN", "%s", "none", "File creation date (YYYY-MM-DDThh:mm:ss UT)"
Keyword:DATE__OBS, string, variable, record, "NaN", "%s", "none", "GPS date of observation"
Keyword:TIME__OBS, string, variable, record, "NaN", "%s", "none", "GPS time of observation"
Keyword:T_OBS, time, variable, record, -4712.01.01_11:59:09_GPS, "0", "GPS", "GPS Time at center of integration"
Keyword:CRPIX1, double, variable, record, nan, "%f", "pixel", "Current X position for center of solar image"
Keyword:CRPIX2, double, variable, record, nan, "%f", "pixel", "Current Y position for center of solar image"
Keyword:CRVAL1, double, variable, record, nan, "%f", "arcsec", "Reference Pixel value (arcsec)"
Keyword:CRVAL2, double, variable, record, nan, "%f", "arcsec", "Reference Pixel value (arcsec)"
Keyword:CDELT1, double, variable, record, nan, "%f", "arcsec/pixel", "Plate scale (arcsec/pixel)"
Keyword:CDELT2, double, variable, record, nan, "%f", "arcsec/pixel", "Plate scale (arcsec/pixel)"
Keyword:CROTA1, double, variable, record, nan, "%f", "deg", ""
Keyword:CROTA2, double, variable, record, nan, "%f", "deg", ""
Keyword:XCEN, double, variable, record, nan, "%f", "arcsec", "Center of image value (arcsec)"
Keyword:YCEN, double, variable, record, nan, "%f", "arcsec", "Center of image value (arcsec)"
Keyword:CUNIT1, string, constant, record, "arcsec", "%s", "none", ""
Keyword:CUNIT2, string, constant, record, "arcsec", "%s", "none", ""
Keyword:CADENCE, double, constant, record, 60.000000, "%f", "s", "Cadence (seconds)"
Keyword:QUALITY, int, variable, record, 00000000, "%08x", "none", ""
Keyword:IMG_P, int, variable, record, 0, "%d", "deg", "Image P angle (degrees)"
Keyword:EPH_B0, double, variable, record, nan, "%f", "deg", "Solar B0 (degrees)"
Keyword:EPH_L0, double, variable, record, nan, "%f", "deg", "Central meridian Carrington Longitude (degrees)"
Keyword:EPH_R0, double, variable, record, nan, "%f", "radian", "Solar radius (radians)"
Keyword:CAR_ROT, int, variable, record, -1, "%d", "none", "Carrington rotation for EPH_L0"
Keyword:IMG_X0, double, variable, record, nan, "%f", "pixel", ""
Keyword:IMG_Y0, double, variable, record, nan, "%f", "pixel", ""
Keyword:IMG_MI, double, variable, record, nan, "%f", "pixel", ""
Keyword:IMG_MA, double, variable, record, nan, "%f", "pixel", ""
Keyword:IRAFNAME, string, variable, record, "0", "%s", "none", "NAME OF IRAF IMAGE FILE"
Keyword:IRAF__MAX, double, variable, record, nan, "%f", "m/s", "DATA MAX"
Keyword:IRAF__MIN, double, variable, record, nan, "%f", "m/s", "DATA MIN"
Keyword:IRAF__BPX, int, variable, record, 0, "%d", "bit", "DATA BITS/PIXEL"
Keyword:VELSCALE, double, variable, record, nan, "%f", "m/s", ""
Keyword:VEL_BIAS, double, variable, record, nan, "%f", "m/s", ""
Keyword:VCOR1, double, variable, record, nan, "%f", "none", ""
Keyword:GONG_OFFSET, double, variable, record, nan, "%f", "deg", "Image P angle (degrees) "
Keyword:FNDLMBXC, double, variable, record, nan, "%f", "pixel", "Sun X center (pixels)"
Keyword:FNDLMBYC, double, variable, record, nan, "%f", "pixel", "Sun Y center (pixels) "
Keyword:FNDLMBMA, double, variable, record, nan, "%f", "pixel", "Major axis (pixels)"
Keyword:FNDLMBMI, double, variable, record, nan, "%f", "pixel", "Minor axis (pixels)"
Keyword:FNDLMBAN, double, variable, record, nan, "%f", "deg", "Rot. angle (degrees)"
Keyword:C_MA, double, variable, record, nan, "%f", "pixel", "Major axis (pixels)"
Keyword:C_MI, double, variable, record, nan, "%f", "pixel", "Major axis (pixels)"
Keyword:PIXLENX, double, variable, record, nan, "%f", "none", ""
Keyword:PIXLENY, double, variable, record, nan, "%f", "none", ""
Keyword:B0, double, variable, record, nan, "%f", "deg", ""
Keyword:L0, double, variable, record, nan, "%f", "deg", ""
Keyword:P_ANGLE, double, variable, record, nan, "%f", "deg", "Image P angle (degrees)"
Keyword:SEMIDIAM, double, variable, record, nan, "%f", "rad", "Solar semidiameter (radians)"
Keyword:DELTA_L0, double, variable, record, nan, "%f", "deg", ""
Keyword:N_IMGMRG, int, variable, record, 0, "%d", "none", "Number of site images used during the merging"
Keyword:MRG_IMGLST, string, variable, record, "0", "%s", "none", "MRG_IM01 + MRG_IM02 ..."
Keyword:INORM, string, variable, record, "0", "%s", "none", ""
Keyword:ORIGIN, string, constant, record, "National Solar Observatory (GONG)", "%s", "none", ""
Keyword:OBS__SITE, string, constant, record, "NSO/GONG NETWORK", "%s", "none", "Instrument Site location"
Keyword:TELESCOP, string, constant, record, "NSO-GONG", "%s", "none", "TELESCOP :: NSO-GONG  NSO/GONG Network"
Keyword:OBS__URL, string, constant, record, "http://gong.nso.edu", "%s", "none", "OBS-URL :: http://gong.nso.edu "
Keyword:DATATYPE, string, constant, record, "REAL", "%s", "none", "Type of data"
Keyword:WAVELNTH, double, constant, record, 676.800000, "%f", "nm", "Wavelength of obs (nm)"
Keyword:WCSNAME, string, constant, record, "Helioprojective-Cartesian", "%s", "none", "Helioprojective-Cartesian"
Keyword:CTYPE1, string, constant, record, "HPLN-TAN", "%s", "none", " Coordinate Axis Label"
Keyword:CTYPE2, string, constant, record, "HPLT-TAN", "%s", "none", " Coordinate Axis Label"
Keyword:IMTYPE, string, constant, record, "VELOCITY", "%s", "none", ""
Keyword:IRAFTYPE, string, constant, record, "REAL", "%s", "none", "REAL / PIXEL TYPE"
Keyword:MAP_TYPE, string, constant, record, "Circular, Solar North at top, Solar East at left", "%s", "none", ""
Keyword:SITENAME, string, constant, record, "Merged Network image", "%s", "none", ""
Keyword:SITE, string, constant, record, "MR", "%s", "none", ""
Keyword:TYPE, int, constant, record, 0, "%d", "none", " Observation type"
Keyword:ITIME, double, constant, record, 60.000000, "%f", "s", "Time between EOI interrupts for OBS type (seconds)"
Keyword:VUNIT, string, constant, record, "m/s", "%s", "none", ""
Keyword:DTYPE, string, constant, record, "V", "%s", "none", ""
Keyword:T_REC_step, double, constant, record, 60.000000, "%f", "minute", "T_REC step"
Keyword:T_REC_epoch, time, constant, record, 1993.01.01_00:00:46_GPS, "0", "GPS", ""

#=====Segments=====
Data: mrvzi_img, variable, short, 2, 839, 839, "m/s", fits, "compress Rice", 0.000000, 1.000000, "gong merge velocity"

HMI Ring Diagrams

29 Jan 2024, 11:40-0800