MDI Observables: mdi.fd_M_96m

MDI Resident Archive

MDI Observables

mdi.fd_M_96m_lev182

Description

Line-of-sight magnetic field from 30-second observations in full-disc mode, sampled either once in a minute or averaged over five consecutive minute samples. Whether the data are form a single observation or an average of five is given by the value of the keyword INTERVAL, the length of the sampling interval in seconds. The data are acquired as part of the regular observing program.

There are 15 records per day (one every 96 min) during during times of instrument operation. Records for which there is no image (fill records) have the high-order bit of the QUALITY keyvalue set, and have DATAVALS = 0. Approximately 11% of the records are fill. For more information, see the release notes for this data series.

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	49	.758	.966	.878	.931	.731	0
Complete	0	.499	.882	.841	.915	.721	0

Superseded records: 60 in addition to 83700 valid

Data Storage

Statistics of SUMS data storage:

SUMS directories: 5228
Average size (MB): 20.128
Minimum size (MB): .081
Maximum size (MB): 22.910
Total size (GB): 102.766

DSDS Source Series

sha.dsds[mdi][lev1.5][fd_M_96m_01d]

MDI Product Codes of Contributing Level 0 Data

04c4b400

09410fc0

09430fc0

09440fc0

09460fc0

48410fc0

48430fc0

48440fc0

48470f00

48470f60

48470fc0

49430fc0

49440fc0

49450fc0

49460fc0

80000000 (only for fill records with no data)

c9450fc0

c9460fc0

Keywords

Prime key(s):

T_REC (time) : 83760/83760 valid (83700 distinct):
    range: 1996.01.01_00:00:30_TAI – 2011.04.11_22:24:00_TAI

Variable key(s):

cparms_sg000 (string) : all 83760 default: = 'compress Rice' (compress Rice)
data_bzero (double) : all 83760 default: = 0 (0)
data_bscale (double) : all 83760 default: = 0.01 (0.01)
T_OBS (time) : 73902/83760 valid (73850 distinct):
    range: 1996.04.15_00:32:00_TAI – 2011.04.11_14:24:30_TAI
    9858 default: = 'NaN' (nan)
DATE__OBS (time) : 73902/83760 valid (73787 distinct):
    range: 1996-04-21T00:29:45Z – -4712.01.01_11:59:28Z
    9858 default: = 'NaN' (nan)
CDELT1 (float) : 73894/83760 valid (21757 distinct):
    range: 1.977283 – 1.986302
    9866 default: = 'NaN' (nan)
CDELT2 (float) : 73894/83760 valid (21757 distinct):
    range: 1.977283 – 1.986302
    9866 default: = 'NaN' (nan)
CRPIX1 (float) : 73901/83760 valid (14559 distinct):
    range: 1.001 – 514.359
    9859 default: = 'NaN' (nan)
CRPIX2 (float) : 73902/83760 valid (27359 distinct):
    range: -20.289 – 514.049
    9858 default: = 'NaN' (nan)
CROTA2 (float) : 73902/83760 valid (2596 distinct):
    range: -145.0 – 180.0
    9858 default: = 'NaN' (nan)
CAR_ROT (int) : 78019/83760 valid (203 distinct):
    range: 1904 – 2108
    5741 default: = -2147483648 (-2147483648)
CRLN_OBS (float) : 78019/83760 valid (77812 distinct):
    range: 0.000 – 359.998
    5741 default: = 'NaN' (nan)
CRLT_OBS (float) : 78019/83760 valid (77822 distinct):
    range: -7.3031 – 7.2937
    5741 default: = 'NaN' (nan)
DSUN_OBS (double) : 78019/83760 valid (77967 distinct):
    range: 145493500671.26 – 150819330537.22
    5741 default: = 'NaN' (nan)
OBS_VR (double) : 78019/83760 valid (77967 distinct):
    range: -588.730580 – 587.618284
    5741 default: = 'NaN' (nan)
OBS_VW (double) : 78019/83760 valid (77967 distinct):
    range: 28556.637722 – 30079.387793
    5741 default: = 'NaN' (nan)
OBS_VN (double) : 78019/83760 valid (77967 distinct):
    range: -3827.566883 – 3722.207932
    5741 default: = 'NaN' (nan)
RSUN_OBS (double) : 78019/83760 valid (77967 distinct):
    range: 951.872775 – 986.716603
    5741 default: = 'NaN' (nan)
R_SUN (float) : 73894/83760 valid (69204 distinct):
    range: 479.279 – 498.872
    9866 default: = 'NaN' (nan)
X0 (float) : 73901/83760 valid (24081 distinct):
    range: 0.001 – 513.359
    9859 default: = 'NaN' (nan)
Y0 (float) : 73902/83760 valid (34990 distinct):
    range: -21.289 – 513.049
    9858 default: = 'NaN' (nan)
EARTH_DT (float) : 73894/83760 valid (72829 distinct):
    range: 4.095387 – 5.654346
    9866 default: = 'NaN' (nan)
DATAVALS (int) : 78525/83760 valid (41592 distinct):
    range: 0 – 781893
    5235 default: = -2147483648 (-2147483648)
MISSVALS (int) : 73902/83760 valid (1301 distinct):
    range: 0 – 798020
    9858 default: = -2147483648 (-2147483648)
DATAMIN (float) : 73902/83760 valid (73609 distinct):
    range: -8298.8 – 4250.0
    9858 default: = 'NaN' (nan)
DATAMAX (float) : 73902/83760 valid (73666 distinct):
    range: -5398.4 – 8334.2
    9858 default: = 'NaN' (nan)
DATAMEDN (float) : 73902/83760 valid (73692 distinct):
    range: -7288.112 – 6938.087
    9858 default: = 'NaN' (nan)
DATAMEAN (float) : 73902/83760 valid (73749 distinct):
    range: -6803.066 – 6805.157
    9858 default: = 'NaN' (nan)
DATARMS (float) : 73902/83760 valid (73638 distinct):
    range: 0.000000 – 2538.689940
    9858 default: = 'NaN' (nan)
DATASKEW (float) : 73902/83760 valid (73747 distinct):
    range: -125.971 – 138.817
    9858 default: = 'NaN' (nan)
DATAKURT (float) : 73902/83760 valid (73711 distinct):
    range: -1.854 – 57187.070
    9858 default: = 'NaN' (nan)
TOT_FLUX (double) : 73827/83760 valid (73775 distinct):
    range: 3399.163261 – 5193556146.137000
    9933 default: = 0.000000 (0.000000)
AVG_FLUX (double) : 73827/83760 valid (73775 distinct):
    range: 3.456384 – 6805.157132
    9933 default: = 0.000000 (0.000000)
MEAN_FLD (double) : 73827/83760 valid (73775 distinct):
    range: -6803.066418 – 6805.157132
    9933 default: = 0.000000 (0.000000)
QUALITY (int) : 83760/83760 valid (107 distinct):
    range: 0x80000000 – 0x4008027d
CROP_RAD (float) : 73838/83760 valid (3 distinct):
    492.0
    504.0
    480.0
    9922 default: = 'NaN' (nan)
INTERVAL (float) : 73838/83760 valid (2 distinct):
    300.00
    30.00
    9922 default: = 'NaN' (nan)
DATE (time) : 82650/83760 valid (15778 distinct):
    range: 2012-02-27T21:23Z – 2012-02-28T23:53Z
    1110 default: = 'NaN' (nan)
RUNTIME (time) : 73838/83760 valid (5220 distinct):
    range: 2000.06.20_18:57_UTC – 2011.04.15_00:24_UTC
    9922 default: = 'NaN' (nan)
BLDVER15 (string) : 73838/83760 valid (32 distinct):
    range: -40800 – 60100
    9922 default: = '' ()
CALTBLS (string) : 73838/83760 valid (1 distinct):
    mdi.scale_corrections
    9922 default: = '' ()
TBLXYUPD (time) : 73838/83760 valid (937 distinct):
    range: 2000.06.12_17:56:41_UTC – 2011.04.14_21:13:17_UTC
    9922 default: = 'NaN' (nan)
XY_FROM (string) : 73838/83760 valid (1 distinct):
    SMOOTH
    9922 default: = '' ()
XY_QUAL (int) : 73838/83760 valid (1 distinct):
    0
    9922 default: = -2147483648 (-2147483648)
BFITZORG (float) : 73837/83760 valid (73713 distinct):
    range: -4700.235 – 4398.942
    9923 default: = 'NaN' (nan)
BLD_VERS (string) : 73902/83760 valid (1 distinct):
    V6R1X
    9858 default: = '' ()
BLDVER18 (int) : 73902/83760 valid (1 distinct):
    -60102
    9858 default: = -2147483648 (-2147483648)
HISTORY (string) : all 83760 default: = '' ()
NOTE1 (string) : 73902/83760 valid (15623 distinct):
    range: Lev 1.8.2 created by fdmagcal on Mon Feb 27 13:24:22 2012. – Lev 1.8.2 created by fdmagcal on Mon Feb 27 19:32:19 2012.
    9858 default: = '' ()
DPC (int) : 79137/83760 valid (17 distinct):
    range: 0xffffffffc9450fc0 – 0x49460fc0
    4623 default: = -2147483648 (0x80000000)

Constant key(s):

CADENCE (float) : 5760.0
BUNIT (string) : Gauss
CONTENT (string) : MDI Full Disk 96m Magnetogram
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
CAMERA (string) : MDI
TELESCOP (string) : SOHO
WAVELNTH (int) : 6768
ORIGIN (string) : SOI Science Support Center
ROLL_TBL (string) : mdi.roll_table
RSUN_REF (double) : 696000000
SINRHOTB (string) : mdi.sinrho_table
T_REC_epoch (time) : 1977.01.01_00:33:13_TAI
T_REC_step (float) : 5760.0
COMMENT (string) : Data from the Solar Oscillations Investigation / Michelson Doppler Imager (SOI/MDI) on the Solar and Heliospheric Observatory (SOHO)
NOTE2 (string) : Magnetic Flat Field Correction per Ulrich et al. 2008
NOTE3 (string) : Ulrich 2008Version

Special Notes

this page last modified 14 Oct 2020, 16:36-0700