MDI Observables: mdi.fd_Ic_bin2x2

MDI Resident Archive

MDI Observables

mdi.fd_Ic_bin2x2_30s

Description

Computed continuum intensity from 30-second observations in full-disc mode, sampled at seconds 00 and 30 and binned 2*2 on the camera. Although 30-second observations are sometimes acquired at second 30 during campaigns, binned observations are not made at second 00 during normal operations. However, unbinned full-disc 30-sec continuum photograms acquired as part of the normal sequence have been binned down to correspond to the data for the lower half of the minute when these data exist. This series is only populated during minutes in which binned full-disc continuum data were acquired second 30 and either binned or unbinned full-disc continuum data were acquired at second 00.

There are two records 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 5% 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	.07204	.00008	.00015	0	0
Complete	0	0	.07173	.00007	.00015	0	0

Most of the data were obtained during the following campaigns:

1997.11.10 13:32:00–23:11:30
1997.12.11 05:08:00–07:38:30
1997.12.11 16:35:00 – 12.15_09:42:30
1998.01.05 18:20:00–20:28:30
1998.01.06 17:58:00–20:30:30
1998.01.09 10:51:00 – 03.03_09:02:30
1998.03.03 15:42:00–19:00:30
1999.04.21 00:01:10–20:12:30

Additional data were taken as part of very brief campaigns or test/validation sequences only at the following times:

1997.11.04 19:00:00–19:03:30
1997.11.10 07:59:00–08:21:30
1997.11.11 09:56:00–10:26:30
1997.12.05 21:22:00–21:28:30
1997.12.15 18:07:00–18:17:30
1998.11.10 19:41:00–19:44:30
1998.11.11 20:57:00–21:00:30
2006.07.27 21:09:00–21:11:30
2007.03.28 18:21:00–18:25:30

Superseded records: 0 in addition to 169320 valid

Data Storage

Statistics of SUMS data storage:

SUMS directories: 1411
Average size (MB): 29.552
Minimum size (MB): .456
Maximum size (MB): 31.977
Total size (GB): 40.721

DSDS Source Series

sha.dsds[mdi][lev1.5][fd_Ic_bin2x2_30s_01h]

MDI Product Codes of Contributing Level 0 Data

464517e0

464817e0

80000000 (only for fill records with no data)

Keywords

Prime key(s):

T_REC (time) : 169320/169320 valid (169320 distinct):
    range: 1997.11.04_19:00:00_TAI – 2007.03.28_18:59:30_TAI

Variable key(s):

DPC (int) : 169320/169320 valid (3 distinct):
    0x464517e0
    0x464817e0
    0xffffffff80000000
cparms_sg000 (string) : all 169320 default: = 'compress Rice' (compress Rice)
data_bzero (double) : all 169320 default: = 0 (0)
data_bscale (double) : all 169320 default: = 1 (1)
T_OBS (time) : 160004/169320 valid (160004 distinct):
    range: 1997.11.04_19:00:00_TAI – 2007.03.28_18:25:30_TAI
    9316 default: = 'NaN' (nan)
DATE__OBS (time) : 160004/169320 valid (160004 distinct):
    range: 1997-11-04T18:59:14Z – 2007-03-28T18:24:42Z
    9316 default: = 'NaN' (nan)
CDELT1 (float) : 160004/169320 valid (523 distinct):
    range: 3.958553 – 3.971527
    9316 default: = 'NaN' (nan)
CDELT2 (float) : 160004/169320 valid (523 distinct):
    range: 3.958553 – 3.971527
    9316 default: = 'NaN' (nan)
CRPIX1 (float) : 160004/169320 valid (4448 distinct):
    range: 256.300 – 256.975
    9316 default: = 'NaN' (nan)
CRPIX2 (float) : 160004/169320 valid (6591 distinct):
    range: 256.210 – 256.530
    9316 default: = 'NaN' (nan)
CROTA2 (float) : 160004/169320 valid (10 distinct):
    range: -9.9 – 180.0
    9316 default: = 'NaN' (nan)
CAR_ROT (int) : 169320/169320 valid (9 distinct):
    range: 1929 – 2054
CRLN_OBS (float) : 169320/169320 valid (168969 distinct):
    range: 0.003 – 360.000
CRLT_OBS (float) : 169320/169320 valid (169276 distinct):
    range: -7.2031 – 5.4183
DSUN_OBS (double) : 169320/169320 valid (169320 distinct):
    range: 145629537592.78 – 150435365150.91
OBS_VR (double) : 169320/169320 valid (169320 distinct):
    range: -513.742953 – 582.160635
OBS_VW (double) : 169320/169320 valid (169320 distinct):
    range: 29003.762252 – 29921.467016
OBS_VN (double) : 169320/169320 valid (169320 distinct):
    range: -3793.924120 – 2629.944112
RSUN_OBS (double) : 169320/169320 valid (169320 distinct):
    range: 954.302316 – 985.794874
R_SUN (float) : 160004/169320 valid (135958 distinct):
    range: 240.478 – 249.027
    9316 default: = 'NaN' (nan)
X0 (float) : 160004/169320 valid (8459 distinct):
    range: 255.300 – 255.975
    9316 default: = 'NaN' (nan)
Y0 (float) : 160004/169320 valid (12960 distinct):
    range: 255.210 – 255.530
    9316 default: = 'NaN' (nan)
EARTH_DT (float) : 160004/169320 valid (139524 distinct):
    range: 4.129088 – 5.468224
    9316 default: = 'NaN' (nan)
DATAVALS (int) : 169320/169320 valid (645 distinct):
    range: 0 – 199472
MISSVALS (int) : 160004/169320 valid (645 distinct):
    range: 0 – 199472
    9316 default: = -2147483648 (-2147483648)
DATAMIN (float) : 160004/169320 valid (121 distinct):
    range: -17.0 – 429.0
    9316 default: = 'NaN' (nan)
DATAMAX (float) : 160004/169320 valid (1052 distinct):
    range: 0.0 – 32764.0
    9316 default: = 'NaN' (nan)
DATAMEDN (float) : 160004/169320 valid (23105 distinct):
    range: 0.000 – 12191.227
    9316 default: = 'NaN' (nan)
DATAMEAN (float) : 160004/169320 valid (105839 distinct):
    range: 0.000 – 11462.082
    9316 default: = 'NaN' (nan)
DATARMS (float) : 160004/169320 valid (150917 distinct):
    range: 0.000000 – 5256.261720
    9316 default: = 'NaN' (nan)
DATASKEW (float) : 160004/169320 valid (100854 distinct):
    range: -2.410 – 4.351
    9316 default: = 'NaN' (nan)
DATAKURT (float) : 160004/169320 valid (146991 distinct):
    range: -1.825 – 66.190
    9316 default: = 'NaN' (nan)
CROP_RAD (float) : all 169320 default: = 'NaN' (nan)
BLD_VERS (string) : 160004/169320 valid (1 distinct):
    V6R3X
    9316 default: = '' ()
DATE (time) : 169320/169320 valid (28146 distinct):
    range: 2012-07-10T22:35Z – 2012-07-11T06:39Z
RUNTIME (time) : 160004/169320 valid (1198 distinct):
    range: 2004.08.27_16:20_UTC – 2007.04.05_21:37_UTC
    9316 default: = 'NaN' (nan)
SOURCE (string) : 160004/169320 valid (160004 distinct):
    range: prog:mdi,level:lev1[10],series:464517e0_01h[44074],sel:[0] – prog:mdi,level:lev1[9],series:464817e0_01h[44162],sel:[9]
    9316 default: = '' ()
BLDVER15 (string) : 160004/169320 valid (2 distinct):
    -50600
    50900
    9316 default: = '' ()
CALTBLS (string) : 160004/169320 valid (1 distinct):
    mdi.caltables_intensity[fd_vers_1]
    9316 default: = '' ()
TBLXYUPD (time) : 160004/169320 valid (3 distinct):
    2004.08.27_01:52:34_UTC
    2006.08.04_07:34:20_UTC
    2007.04.05_20:33:51_UTC
    9316 default: = 'NaN' (nan)
XY_FROM (string) : 160004/169320 valid (1 distinct):
    SMOOTH
    9316 default: = '' ()
XY_QUAL (int) : 159945/169320 valid (1 distinct):
    0
    9375 default: = -2147483648 (-2147483648)
HISTORY (string) : all 169320 default: = '' ()
COMMENT (string) : 169320/169320 valid (1 distinct):
    Data from the Solar Oscillations Investigation / Michelson Doppler Imager (SOI/MDI) on the Solar and Heliospheric Observatory (SOHO).
QUALITY (int) : 169320/169320 valid (21 distinct):
    range: 0x80000000 – 0x000002bd

Constant key(s):

CAMERA (string) : MDI
CONTENT (string) : MDI Full Disk 2x2 Binned High Cadence Intensity Continuum
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) : 30.0
INSTRUME (string) : MDI
TELESCOP (string) : SOHO
WAVELNTH (int) : 6768
ORIGIN (string) : SOI Science Support Center
POLSTATE (string) : LP
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) : 30.0
INTERVAL (float) : 30.00

Special Notes

With the exception of the data acquired in the intervals 1997.12.11_05:08:00–06:59:30, 1998.01.25_21:36:00 – 01.26_13:59:30, 1998.01.28_01:00:00 – 02.01_23_59:30, 1998.02.04_00:00:00 – 02.05_23_59:30, 1998.03.03_15:42:00–19:00:30, and those in 2006 and 2007, these data were always acquired in conjunction with data from the series fd_V_bin2x2_30s. This suggests that the gaps in the latter series may be due to processing problems.

this page last modified 31 Jul 2015, 14:37-0700