MDI Observables: fd

MDI Resident Archive

MDI Observables

mdi.fd_I0

Description

Intensity of the filtergram at the 0-tuning position, nominally furthest from line center, from 30-second observations in full-disc mode, sampled once per minute at second 30 The data are acquired as part of various MDI Campaigns. The images may have been cropped to just beyond the nominal solar radius prior to telemetry (DPC 404b1fc0) or have included the full camera image (DPC 404b3000). There is one record per minute during hours when there are any images, to assure continuity of certain ancillary data. Records for which there is no image (fill records) have the high-order bit of the QUALITY keyvalue set, and have DATAVALS = 0. Approximately 58% of the records are fill.

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	0	0	.0362	.0098	.0009	.0005	0
Complete	0	0	.0356	.0093	.0009	.0005	0

Data Storage

Statistics of SUMS data storage:

SUMS directories: 1977
Average size (MB): 18.841
Minimum size (MB): .076
Maximum size (MB): 48.591
Total size (GB): 36.377

DSDS Source Series

sha.dsds[mdi][lev1.5][fd_I0_01h]

MDI Product Codes of Contributing Level 0 Data

80000000 (only for fill records with no data)

404b1fc0

404b3000

Keywords

Prime key(s):

T_REC (time) : 114180/114180 valid (113940 distinct):
    range: 1996.07.26_16:00:30_TAI – 2011.04.08_22:59:30_TAI

Variable key(s):

DPC (int) : 114180/114180 valid (3 distinct):
    0x404b3000
    0x404b1fc0
    0x80000000
cparms_sg000 (string) : all 114180 default: = 'compress Rice' (compress Rice)
data_bzero (double) : all 114180 default: = 0 (0)
data_bscale (double) : all 114180 default: = 1 (1)
T_OBS (time) : 46759/114180 valid (46751 distinct):
    range: 1996.07.26_16:35:30_TAI – 2011.04.08_22:28:16_TAI
    67421 default: = 'NaN' (nan)
DATE__OBS (time) : 46759/114180 valid (46751 distinct):
    range: 1996-07-26T16:34:45Z – 2011-04-08T22:27:27Z
    67421 default: = 'NaN' (nan)
CDELT1 (float) : 46759/114180 valid (1419 distinct):
    range: 1.977283 – 1.986089
    67421 default: = 'NaN' (nan)
CDELT2 (float) : 46759/114180 valid (1419 distinct):
    range: 1.977283 – 1.986089
    67421 default: = 'NaN' (nan)
CRPIX1 (float) : 46759/114180 valid (8643 distinct):
    range: 511.771 – 513.407
    67421 default: = 'NaN' (nan)
CRPIX2 (float) : 46759/114180 valid (15593 distinct):
    range: 511.458 – 513.946
    67421 default: = 'NaN' (nan)
CROTA2 (float) : 46759/114180 valid (262 distinct):
    range: -177.9 – 180.0
    67421 default: = 'NaN' (nan)
CAR_ROT (int) : 114180/114180 valid (78 distinct):
    range: 1912 – 2108
CRLN_OBS (float) : 114180/114180 valid (113677 distinct):
    range: 0.000 – 360.000
CRLT_OBS (float) : 114180/114180 valid (112917 distinct):
    range: -7.2390 – 7.2924
DSUN_OBS (double) : 114180/114180 valid (113940 distinct):
    range: 145533260693.33 – 150783923082.64
OBS_VR (double) : 114180/114180 valid (113940 distinct):
    range: -588.730676 – 586.210272
OBS_VW (double) : 114180/114180 valid (113937 distinct):
    range: 28571.740600 – 30046.272943
OBS_VN (double) : 114180/114180 valid (113940 distinct):
    range: -3818.411678 – 3700.450785
RSUN_OBS (double) : 114180/114180 valid (113940 distinct):
    range: 952.096298 – 986.447027
R_SUN (float) : 46759/114180 valid (39038 distinct):
    range: 479.835 – 498.872
    67421 default: = 'NaN' (nan)
X0 (float) : 46759/114180 valid (13262 distinct):
    range: 510.771 – 512.407
    67421 default: = 'NaN' (nan)
Y0 (float) : 46759/114180 valid (19989 distinct):
    range: 510.458 – 512.946
    67421 default: = 'NaN' (nan)
EARTH_DT (float) : 46759/114180 valid (45598 distinct):
    range: 4.117006 – 5.576461
    67421 default: = 'NaN' (nan)
DATAVALS (int) : 114180/114180 valid (596 distinct):
    range: 0 – 1048576
MISSVALS (int) : 46759/114180 valid (595 distinct):
    range: 0 – 888182
    67421 default: = -2147483648 (-2147483648)
DATAMIN (float) : 46759/114180 valid (127 distinct):
    range: -95.0 – 213.0
    67421 default: = 'NaN' (nan)
DATAMAX (float) : 46759/114180 valid (1855 distinct):
    range: 0.0 – 27513.0
    67421 default: = 'NaN' (nan)
DATAMEDN (float) : 46759/114180 valid (13796 distinct):
    range: -91.964 – 4939.129
    67421 default: = 'NaN' (nan)
DATAMEAN (float) : 46759/114180 valid (42305 distinct):
    range: -75.537 – 4470.937
    67421 default: = 'NaN' (nan)
DATARMS (float) : 46759/114180 valid (45422 distinct):
    range: 0.000000 – 1492.507570
    67421 default: = 'NaN' (nan)
DATASKEW (float) : 46759/114180 valid (44799 distinct):
    range: -2.843 – 14.916
    67421 default: = 'NaN' (nan)
DATAKURT (float) : 46759/114180 valid (46121 distinct):
    range: -1.898 – 304.847
    67421 default: = 'NaN' (nan)
BLD_VERS (string) : 46759/114180 valid (2 distinct):
    V7R0X
    V7R0
    67421 default: = '' ()
DATE (time) : 114180/114180 valid (14743 distinct):
    range: 2012-09-05T00:09Z – 2012-09-06T05:19Z
RUNTIME (time) : 46759/114180 valid (1751 distinct):
    range: 2001.02.06_17:04_UTC – 2011.04.14_21:47_UTC
    67421 default: = 'NaN' (nan)
SOURCE (string) : 46759/114180 valid (46751 distinct):
    range: prog:mdi,level:lev1[1],series:404b1fc0_01h[100430],sel:[0] – prog:mdi,level:lev1[8],series:404b1fc0_01h[43921],sel:[9]
    67421 default: = '' ()
BLDVER15 (string) : 46759/114180 valid (17 distinct):
    range: -41000 – 60100
    67421 default: = '' ()
CALTBLS (string) : 46759/114180 valid (1 distinct):
    mdi.caltables_intensity[fd_vers_0]
    67421 default: = '' ()
TBLXYUPD (time) : 46759/114180 valid (67 distinct):
    range: 2001.02.02_23:59:35_UTC – 2011.04.14_21:13:17_UTC
    67421 default: = 'NaN' (nan)
XY_FROM (string) : 46759/114180 valid (1 distinct):
    SMOOTH
    67421 default: = '' ()
XY_QUAL (int) : 46759/114180 valid (1 distinct):
    0
    67421 default: = -2147483648 (-2147483648)
HISTORY (string) : all 114180 default: = '' ()
POLSTATE (string) : all 114180 default: = 'UNK' (UNK)
COMMENT (string) : 114180/114180 valid (1 distinct):
    Data from the Solar Oscillations Investigation / Michelson Doppler Imager (SOI/MDI) on the Solar and Heliospheric Observatory (SOHO).
QUALITY (int) : 114180/114180 valid (24 distinct):
    range: 0x80000000 – 0x000002bd

Constant key(s):

CAMERA (string) : MDI
CONTENT (string) : MDI Full Disk Continuum Filtergram
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_00:33:12_TAI
T_REC_step (float) : 60.0
CROP_RAD (float) : 504.0
INTERVAL (float) : 30.00

Special Notes

this page last modified 9 Jul 2015, 11:29-0700