MDI Resident Archive MDI Observables

mdi.hr_Ld

Description

Line depth from 30-second observations in high-resolution mode, sampled once per minute at second 30. The data are acquired intermittently during various campaigns, with different subrasters of the full CCD image populated. The data are acquired in linear polarization.

Coverage / Duty Cycle

The fraction of possible time intervals containing partial or complete images during each mission phase is as follows:
<1996.04.20
(Record count only)
1996.04.20 – 1996.05.22 1996.05.23 – 1998.06.24 1998.10.20 – 1998.12.21 1999.02.03 – 2010.09.14 2010.09.14 – 2011.04.12 >2011.04.12
(Record count only)
Partial 00 .00183 0 .00159 00
Complete 00 .00181 0 .00157 00
Superseded records: 0 in addition to 11767 valid

The data were acquired in sporadic brief campaigns or test/validation sequences between 1997.03.07 and 2009.09.02. Almost all of the data were acquired on 1997.02.05–06, 1997.02.19–20, or 1997.03.07–08

Data Storage

Statistics of SUMS data storage:

DSDS Source Series

sha.dsds[mdi][lev1.5][hr_Ld_1024x640_01h]
sha.dsds[mdi][lev1.5][hr_Ld_1024x700_01h]
sha.dsds[mdi][lev1.5][hr_Ld_700x700_01h]

MDI Product Codes of Contributing Level 0 Data

44483140
44483240
44483b00

Keywords

Prime key(s):
T_REC (time) : 11767/11767 valid (11767 distinct):
    range: 1997.01.10_16:55:30_TAI – 2010.06.15_00:09:30_TAI
Variable key(s):
cparms_sg000 (string) : all 11767 default: = 'compress Rice' (compress Rice)
data_bzero (double) : all 11767 default: = 0 (0)
data_bscale (double) : all 11767 default: = 1 (1)
T_OBS (time) : 11767/11767 valid (11767 distinct):
    range: 1997.01.10_16:55:30_TAI – 2010.06.15_00:09:30_TAI
DATE__OBS (time) : 11767/11767 valid (11767 distinct):
    range: 1997-01-10T16:54:45Z – 2010-06-15T00:08:41Z
CDELT1 (float) : 11767/11767 valid (66 distinct):
    range: 0.605248 – 0.607955
CDELT2 (float) : 11767/11767 valid (66 distinct):
    range: 0.605248 – 0.607955
CRPIX1 (float) : 11767/11767 valid (5086 distinct):
    range: 171.899 – 496.667
CRPIX2 (float) : 11767/11767 valid (5214 distinct):
    range: 256.920 – 312.953
DPC (int) : 11767/11767 valid (3 distinct):
    0x44483240
    0x44483140
    0x44483b00
CROTA2 (float) : 11767/11767 valid (2 distinct):
    0.0
    180.0
CAR_ROT (int) : 11767/11767 valid (10 distinct):
    range: 1918 – 2097
CRLN_OBS (float) : 11767/11767 valid (11767 distinct):
    range: 15.551 – 328.723
CRLT_OBS (float) : 11767/11767 valid (11767 distinct):
    range: -7.2380 – 7.1850
DSUN_OBS (double) : 11767/11767 valid (11767 distinct):
    range: 145646646302.00 – 150497725871.97
OBS_VR (double) : 11767/11767 valid (11767 distinct):
    range: -519.163684 – 564.884267
OBS_VW (double) : 11767/11767 valid (11767 distinct):
    range: 28778.229499 – 29925.032636
OBS_VN (double) : 11767/11767 valid (11767 distinct):
    range: -3153.930792 – 3710.295124
RSUN_OBS (double) : 11767/11767 valid (11767 distinct):
    range: 953.906885 – 985.679075
R_SUN (float) : 11767/11767 valid (7382 distinct):
    range: 1569.042 – 1628.555
X0 (float) : 11767/11767 valid (5086 distinct):
    range: 170.899 – 495.667
Y0 (float) : 11767/11767 valid (5214 distinct):
    range: 255.920 – 311.953
EARTH_DT (float) : 11767/11767 valid (11767 distinct):
    range: 4.149431 – 5.251437
DATAVALS (int) : 11767/11767 valid (74 distinct):
    range: 12992 – 716800
MISSVALS (int) : 11767/11767 valid (72 distinct):
    range: 0 – 678644
DATAMIN (float) : 11767/11767 valid (275 distinct):
    range: -1.0 – 1732.0
DATAMAX (float) : 11767/11767 valid (1748 distinct):
    range: 1846.0 – 7846.0
DATAMEDN (float) : 11767/11767 valid (3134 distinct):
    range: 1582.961 – 2420.069
DATAMEAN (float) : 11767/11767 valid (9569 distinct):
    range: 1572.043 – 2418.811
DATARMS (float) : 11767/11767 valid (10530 distinct):
    range: 77.582047 – 241.539764
DATASKEW (float) : 11767/11767 valid (11501 distinct):
    range: -7.782 – 0.967
DATAKURT (float) : 11767/11767 valid (11462 distinct):
    range: 0.011 – 83.417
BLD_VERS (string) : 11767/11767 valid (2 distinct):
    V7R0X
    V8R10X
DATE (time) : 11767/11767 valid (9939 distinct):
    range: 2012-09-11T00:34Z – 2015-11-10T01:22Z
RUNTIME (time) : 11767/11767 valid (223 distinct):
    range: 1998.11.09_00:20_UTC – 2010.06.24_20:43_UTC
SOURCE (string) : 11767/11767 valid (11767 distinct):
    range: prog:mdi,level:lev1[1],series:44483140_01h[119035],sel:[0] – prog:mdi,level:lev1[5],series:44483240_01h[36627],sel:[9]
BLDVER15 (string) : 11767/11767 valid (6 distinct):
    range: 40002 – 60100
CALTBLS (string) : 11767/11767 valid (1 distinct):
    mdi.caltables_intensity[hr_vers_0]
TBLXYUPD (time) : 11767/11767 valid (11 distinct):
    range: 1998.07.27_18:21:17_UTC – 2010.06.24_18:30:00_UTC
XY_FROM (string) : 11767/11767 valid (1 distinct):
    SMOOTH
XY_QUAL (int) : 11767/11767 valid (1 distinct):
    0
HISTORY (string) : all 11767 default: = ''
POLSTATE (string) : all 11767 default: = 'UNK'
COMMENT (string) : all 11767 default: = 'Data from the Solar Oscillations Investigation / Michelson Doppler Imager (SOI/MDI) on the Solar and Heliospheric Observatory (SOHO)'
QUALITY (int) : 11767/11767 valid (13 distinct):
    range: 0x00000000 – 0x0000028c
Constant key(s):
CAMERA (string) : MDI
CONTENT (string) : MDI High Resolution Line Depth
CRVAL1 (float) : 0.000
CRVAL2 (float) : 0.000
CTYPE1 (string) : HPLN-TAN
CTYPE2 (string) : HPLT-TAN
CUNIT1 (string) : arcsec
CUNIT2 (string) : arcsec
WCSAXES (int) : 2
WCSNAME (string) : Helioprojective-cartesian
BUNIT (string) : Arbitrary intensity units
CADENCE (float) : 60.0
INSTRUME (string) : MDI
TELESCOP (string) : SOHO
WAVELNTH (int) : 6768
ORIGIN (string) : SOI Science Support Center
ROLL_TBL (string) : mdi.roll_table
RSUN_REF (double) : 696000000
T_REC_epoch (time) : 1977.01.01_00:33:13_TAI
T_REC_step (float) : 60.0
INTERVAL (float) : 30.00

Special Notes

DP 44483140 was always acquired in conjunction with DP 4a482140 (mdi.hr_V).
DP 44483240 was always acquired in conjunction with DP 4a482240 (mdi.hr_V) and DP 4d483240 (mdi.hr_Ic).
DP 44483b00 was always acquired in conjunction with DP 42420fc0 (mdi.fd_V)
There are no fill records in this series, records for minutes in which no image data are available.


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