MDI Observables: mdi.fd_V

MDI Resident Archive

MDI Observables

mdi.fd_V_extract

Description

Doppler velocity from 30-second observations in full-disc mode, sampled once per minute at second 30 and extracted into subrasters of dimension 1024*750 or 1024*500 on the camera. The data are acquired occasionally during certain targeted campaigns. All of the data are acquired in circular 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	0	0	.0469	.1493	.0028	0	0
Complete	0	0	.0460	.0941	.0028	0	0

Most of the data were obtained during the following campaign intervals:

1996.08.02–03
1996.08.05–07
1996.08.13–14
1996.08.23–24
1996.08.29 – 09.02
1996.09.06–07
1996.09.13
1996.09.27–30
1996.10.23–25
1996.11.06–09
1996.11.22 – 12.03
1997.01.19–22
1997.01.25–27
1997.02.18
1997.03.22–25
1997.07.15–19
1997.08.20–22
1997.12.20–21
1998.05.01–04
1998.05.06–08
1998.05.12–14
1998.05.18–21
1998.05.26 – 06.12
1998.06.20–23
1998.11.05–15
1998.12.09–21
1999.07.31 – 08.01
1999.08.03–06
1999.08.26 – 09.01
2000.02.02–03
2001.02.09
2001.02.16
2003.11.26 – 12.02

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

1996.07.26 16:37–16:38, 17:18–17:19, 18:00–18:01
1996.10.21 19:05–19:09
2002.03.12 16:54–16:56, 17:11–17:15
2003.11.25 19:16–19:19
2006.07.31 19:57–20:04
2007.03.21 21:35–21:38
2007.03.22 15:00–15:03
2009.08.28 22:33–22:36
2009.09.02 13:47–13:50

Superseded records: 0 in addition to 82595 valid

Data Storage

Statistics of SUMS data storage:

SUMS directories: 1707
Average size (MB): 38.456
Minimum size (MB): .553
Maximum size (MB): 53.893
Total size (GB): 64.106

DSDS Source Series

sha.dsds[mdi][lev1.5][fd_Vm_1024x750_01h]

sha.dsds[mdi][lev1.5][fd_Vm_1024x500_01h]

MDI Product Codes of Contributing Level 0 Data

42472040

42472d00

Keywords

Prime key(s):

T_REC (time) : 82595/82595 valid (82595 distinct):
    range: 1996.07.26_16:37:30_TAI – 2009.09.02_13:50:30_TAI

Variable key(s):

XY_QUAL (int) : 82595/82595 valid (1 distinct):
    0
HISTORY (string) : all 82595 default: = '' ()
BLD_VERS (string) : 82595/82595 valid (1 distinct):
    V6R3X
cparms_sg000 (string) : all 82595 default: = 'compress Rice' (compress Rice)
data_bzero (double) : all 82595 default: = 0 (0)
data_bscale (double) : all 82595 default: = 1 (1)
T_OBS (time) : 82595/82595 valid (82595 distinct):
    range: 1996.07.26_16:37:30_TAI – 2009.09.02_13:50:30_TAI
DATE__OBS (time) : 82595/82595 valid (82595 distinct):
    range: 1996-07-26T16:36:45Z – 2009-09-02T13:49:41Z
CDELT1 (float) : 82595/82595 valid (1274 distinct):
    range: 1.977345 – 1.986038
CDELT2 (float) : 82595/82595 valid (1274 distinct):
    range: 1.977345 – 1.986038
CRPIX1 (float) : 82595/82595 valid (13010 distinct):
    range: 512.062 – 513.700
CRPIX2 (float) : 82595/82595 valid (36554 distinct):
    range: -23.633 – 513.106
CROTA2 (float) : 82595/82595 valid (5931 distinct):
    range: -11.0 – 180.0
CAR_ROT (int) : 82595/82595 valid (28 distinct):
    range: 1912 – 2087
CRLN_OBS (float) : 82595/82595 valid (82487 distinct):
    range: 0.001 – 359.992
CRLT_OBS (float) : 82595/82595 valid (82493 distinct):
    range: -7.2385 – 7.2926
DPC (int) : 82595/82595 valid (2 distinct):
    0x42472040
    0x42472d00
QUALITY (int) : 82595/82595 valid (30 distinct):
    range: 0x00000000 – 0x000002fd
DSUN_OBS (double) : 82595/82595 valid (82595 distinct):
    range: 145606093595.54 – 150601986081.80
OBS_VR (double) : 82595/82595 valid (82595 distinct):
    range: -558.391062 – 564.729428
OBS_VW (double) : 82595/82595 valid (82595 distinct):
    range: 28755.462062 – 29919.755739
OBS_VN (double) : 82595/82595 valid (82595 distinct):
    range: -3803.416749 – 3711.604559
RSUN_OBS (double) : 82595/82595 valid (82595 distinct):
    range: 953.246500 – 985.953598
R_SUN (float) : 82595/82595 valid (72379 distinct):
    range: 481.247 – 498.135
X0 (float) : 82595/82595 valid (20093 distinct):
    range: 511.062 – 512.700
Y0 (float) : 82595/82595 valid (38371 distinct):
    range: -24.633 – 512.106
EARTH_DT (float) : 82595/82595 valid (79196 distinct):
    range: 4.133638 – 5.641010
DATAVALS (int) : 82595/82595 valid (1565 distinct):
    range: 0 – 768000
MISSVALS (int) : 82595/82595 valid (1560 distinct):
    range: 0 – 768000
DATAMIN (float) : 82595/82595 valid (3169 distinct):
    range: -32765.0 – 0.0
DATAMAX (float) : 82595/82595 valid (2025 distinct):
    range: 0.0 – 32734.0
DATAMEDN (float) : 82595/82595 valid (79411 distinct):
    range: -1797.735 – 1663.161
DATAMEAN (float) : 82595/82595 valid (82278 distinct):
    range: -1818.637 – 1676.847
DATARMS (float) : 82595/82595 valid (79221 distinct):
    range: 0.000000 – 2235.646240
DATASKEW (float) : 82595/82595 valid (81723 distinct):
    range: -1.951 – 2.906
DATAKURT (float) : 82595/82595 valid (82050 distinct):
    range: -1.297 – 67.846
INTERVAL (float) : 82595/82595 valid (1 distinct):
    30.00
DATE (time) : 82595/82595 valid (11688 distinct):
    range: 2012-07-10T20:28Z – 2012-07-10T23:54Z
RUNTIME (time) : 82595/82595 valid (1506 distinct):
    range: 2001.02.14_16:43_UTC – 2009.10.01_17:02_UTC
SOURCE (string) : 82595/82595 valid (82595 distinct):
    range: prog:mdi,level:lev1[1],series:42472040_01h[119036],sel:[0] – prog:mdi,level:lev1[5],series:42472040_01h[46724],sel:[9]
BLDVER15 (string) : 82595/82595 valid (8 distinct):
    range: -50500 – 60100
CALTBLS (string) : 82595/82595 valid (3 distinct):
    mdi.caltables_doppler[fd_tune_2]
    mdi.caltables_doppler[fd_tune_6]
    mdi.caltables_doppler[fd_tune_5]
TBLXYUPD (time) : 82595/82595 valid (15 distinct):
    range: 2001.02.06_21:54:43_UTC – 2009.09.29_19:44:47_UTC
XY_FROM (string) : 82595/82595 valid (1 distinct):
    SMOOTH
COMMENT (string) : 82595/82595 valid (1 distinct):
    Data from the Solar Oscillations Investigation / Michelson Doppler Imager (SOI/MDI) on the Solar and Heliospheric Observatory (SOHO).

Constant key(s):

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) : m/s
CADENCE (float) : 60.0
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
POLSTATE (string) : CP
T_REC_epoch (time) : 1977.01.01_00:33:13_TAI
T_REC_step (float) : 60.0
CONTENT (string) : Extract of MDI Full Disk Dopplergram

Special Notes

DP 42472040 was always acquired in conjunction with DP 48472040 (mdi.fd_M_extract).

DP 42472d00 was always acquired in conjunction with DP 404b3d00 (mdi.fd_I0_extract) and 48472d00 (mdi.fd_M_extract).

this page last modified 17 Jun 2015, 16:34-0700