SOI Data - SOI Home

SOI Data Programs - prog:mdi

The data in this program are derived from observations made with the Michelson Doppler Imager on board the Solar and Heliospheric Observatory.

These data are provided for purposes of scientific data analysis under conditions of the SOI data policy.

Available Processing Levels

For a general description of processing levels within the SOI database, see the SOI Datasets description.

Data Availability

Raw data are usually available within two weeks of the time of observation.

Level 0, and Level 1 data are usually available within one week of receipt of the corresponding raw data.

Level 1.5 data are usually available within one month of receipt of the corresponding raw data, i.e. within two months of the corresponding observations.

Significant Observing Conditions and Events

For tables of SOHO spacecraft events, see the SOHO Events page. For lists of MDI-specific events, see the MDI Events Query page.

Times of Continuous High-rate Telemetry

Continuous high-rate telemetry was available for longer durations than one day during the following approximate time intervals. (There are occasional telemetry gaps of up to several hours during these intervals.) For each interval, there is a list of data products for which there are continuous subintervals of duration greater than one day. Structure program data and regular synoptic data sets are excluded.
through Dec. 2004; from 2005, only dynamics campaigns are included
  1. 1996.04.24_21:25 - 1996.04.28_08:20 (hours 29037 - 29120)
  2. 1996.05.23_22:05 - 1996.07.24_04:20 Dynamics I (hours 29734 - 31204)
  3. 1996.08.18_17:10 - 1996.08.23_03:00 (hours 31817 - 31922)
  4. 1996.09.17_17:40 - 1996.09.22_01:35 (hours 32537 - 32641)
  5. 1996.10.17_15:30 - 1996.10.22_01:00 (hours 33255 - 33360)
  6. 1996.11.16_12:25 - 1996.11.20_00:10 (hours 33972 - 34056)
  7. 1996.12.15_18:00 - 1996.12.19_01:40 (hours 34674 - 34753)
  8. 1997.01.15_09:20 - 1997.01.16_22:25 (hours 35409 - 35446)
  9. 1997.01.16_22:25 - 1997.01.18_21:30 (hours 35446 - 35493)
  10. 1997.02.13_10:30 - 1997.02.18_15:20 (hours 36106 - 36231)
  11. 1997.03.12_14:20 - 1997.03.17_00:45 (hours 36758 - 36864)
  12. 1997.04.13_12:40 - 1997.06.12_23:18 Dynamics IIa (hours 37524 - 38975)
  13. 1997.06.13_19:53 - 1997.06.19_00:20 Dynamics IIb (hours 38995 - 39120)
  14. 1997.06.19_00:22 - 1997.06.30_23:06 Dynamics IIc (hours 39120 - 39407)
  15. 1997.06.30_23:18 - 1997.07.14_04:00 Dynamics IId (hours 39407 - 39724)
  16. 1997.08.10_14:30 - 1997.08.14_01:05 (hours 40382 - 40465)
  17. 1997.09.11_18:00 - 1997.09.15_05:00 (hours 41154 - 41236)
  18. 1997.10.07_15:15 - 1997.10.11_04:15 (hours 41775 - 41860)
  19. 1997.11.05_15:40 - 1997.11.09_01:05 (hours 42471 - 42553)
  20. 1997.12.11_16:30 - 1997.12.15_06:40 (hours 43336 - 43422)
  21. 1998.01.09_10:50 - 1998.03.03_09:00 Dynamics IIIa (hours 44026 - 45296)
  22. 1998.03.05_08:20 - 1998.04.10_08:00 Dynamics IIIb (hours 45344 - 46207)
  23. 1998.05.01_18:05 - 1998.05.07_21:30 (hours 46722 - 46869)
  24. 1998.06.11_17:30 - 1998.06.17_15:20 (hours 47705 - 47847)
  25. 1998.11.03_18:55 - 1998.11.05_18:05 (hours 51186 - 51234)
  26. 1998.11.05_18:10 - 1998.11.09_08:20 (hours 51234 - 51320)
  27. 1999.02.19_00:40 - 1999.02.20_12:20 (hours 53760 - 53796)
  28. 1999.02.28_17:40 - 1999.03.12_09:05 Dynamics IVa (hours 53993 - 54272)
  29. 1999.03.13_01:15 - 1999.05.28_16:30 Dynamics IVb (hours 54289 - 56128)
  30. 1999.05.28_17:15 - 1999.06.12_16:55 (hours 56129 - 56488)
  31. 1999.06.12_18:10 - 1999.06.14_01:41 (hours 56490 - 56521)
  32. 1999.07.14_09:37 - 1999.07.16_15:41 (hours 57249 - 57303)
  33. 1999.07.19_00:18 - 1999.07.20_07:03 (hours 57360 - 57391)
  34. 1999.08.06_15:34 - 1999.08.09_00:58 (hours 57807 - 57864)
  35. 1999.08.09_07:35 - 1999.08.11_00:02 (hours 57871 - 57912)
  36. 1999.08.26_21:53 - 1999.09.01_01:56 (hours 58293 - 58417)
  37. 1999.09.01_18:33 - 1999.09.06_12:55 (hours 58434 - 58548)
  38. 1999.09.08_06:25 - 1999.09.10_02:33 (hours 58590 - 58634)
  39. 1999.09.10_17:59 - 1999.09.12_07:33 (hours 58649 - 58687)
  40. 1999.09.15_06:50 - 1999.09.19_12:33 (hours 58758 - 58860)
  41. 1999.09.22_20:31 - 1999.09.27_17:18 (hours 58940 - 59057)
  42. 1999.10.01_19:33 - 1999.10.06_01:27 (hours 59155 - 59257)
  43. 1999.10.07_07:04 - 1999.10.11_00:46 (hours 59287 - 59376)
  44. 1999.10.13_18:35 - 1999.10.14_20:03 (hours 59442 - 59468)
  45. 1999.10.14_20:04 - 1999.10.15_21:30 (hours 59468 - 59493)
  46. 1999.10.15_22:43 - 1999.10.17_21:19 (hours 59494 - 59541)
  47. 1999.10.17_21:19 - 1999.10.19_12:24 (hours 59541 - 59580)
  48. 1999.10.23_05:01 - 1999.10.25_13:26 (hours 59669 - 59725)
  49. 1999.10.29_21:08 - 1999.10.31_01:03 (hours 59829 - 59857)
  50. 1999.10.31_01:04 - 1999.11.01_02:27 (hours 59857 - 59882)
  51. 1999.11.04_09:46 - 1999.11.07_05:39 (hours 59961 - 60029)
  52. 1999.11.09_23:45 - 1999.11.11_00:02 (hours 60120 - 60233)
  53. 1999.11.11_00:03 - 1999.11.15_17:44 (hours 60120 - 60233)
  54. 1999.12.09_00:34 - 1999.12.14_04:12 (hours 60792 - 60916)
  55. 1999.12.14_12:49 - 1999.12.16_06:29 (hours 60924 - 60966)
  56. 1999.12.16_12:21 - 1999.12.19_04:52 (hours 60972 - 61036)
  57. 1999.12.23_18:01 - 1999.12.25_06:20 (hours 61146 - 61182)
  58. 2000.01.08_16:20 - 2000.01.10_04:12 (hours 61528 - 61564)
  59. 2000.01.13_15:17 - 2000.01.18_08:30 (hours 61647 - 61760)
  60. 2000.02.10_20:28 - 2000.02.15_07:29 (hours 62324 - 62431)
  61. 2000.04.02_18:55 - 2000.04.24_07:12 Dynamics Va (hours 63570 - 64087)
  62. 2000.04.30_12:44 - 2000.05.03_05:56 (hours 64236 - 64301)
  63. 2000.05.09_18:56 - 2000.07.11_06:09 Dynamics Vb (hours 64458 - 65958)
  64. 2000.08.12_16:25 - 2000.08.14_10:00 (hours 66736 - 66788)
  65. 2000.08.15_08:58 - 2000.08.29_05:30 Dynamics Vc (hours 66800 - 67133)
  66. 2000.10.18_13:00 - 2000.10.20_20:46 (hours 68341 - 68396)
  67. 2000.11.10_12:56 - 2000.11.12_05:21 (hours 68892 - 68933)
  68. 2000.11.26_08:25 - 2000.11.28_00:45 (hours 69272 - 69312)
  69. 2000.12.15_14:59 - 2000.12.17_02:42 (hours 69734 - 69770)
  70. 2001.01.03_15:15 - 2001.01.08_21:00 (hours 70191 - 70317)
  71. 2001.02.02_08:39 - 2001.02.06_06:41 (hours 70904 - 70998)
  72. 2001.02.20_12:29 - 2001.02.22_02:05 (hours 71340 - 71378)
  73. 2001.02.24_10:16 - 2001.02.27_08:20 (hours 71434 - 71504)
  74. 2001.02.28_10:09 - 2001.05.14_12:10 Dynamics VIa (hours 71530 - 73332)
  75. 2001.05.14_12:21 - 2001.05.28_00:22 Dynamics VIb (hours 73332 - 73656)
  76. 2001.06.06_13:53 - 2001.06.08_01:20 (hours 73885 - 73921)
  77. 2001.07.04_11:33 - 2001.07.10_04:00 (hours 74555 - 74692)
  78. 2001.08.19_20:08 - 2001.08.21_02:03 (hours 75668 - 75698)
  79. 2001.08.30_01:45 - 2001.09.03_00:06 (hours 75913 - 76008)
  80. 2001.09.27_18:00 - 2001.10.01_07:40 (hours 76602 - 76687)
  81. 2001.10.03_18:07 - 2001.10.05_07:50 (hours 76746 - 76783)
  82. 2001.10.10_16:57 - 2001.10.15_00:15 (hours 76912 - 77016)
  83. 2001.10.19_17:18 - 2001.10.21_03:00 (hours 77129 - 77163)
  84. 2001.10.24_21:11 - 2001.10.30_09:06 (hours 77253 - 77385)
  85. 2001.11.30_21:17 - 2001.12.02_22:22 (hours 78141 - 78190)
  86. 2002.01.06_20:35 - 2002.01.08_14:44 (hours 79028 - 79070)
  87. 2002.01.10_16:19 - 2002.02.05_01:59 Dynamics VIIa (hours 79120 - 79729)
  88. 2002.02.14_20:55 - 2002.03.09_02:11 Dynamics VIIb (hours 79964 - 80498)
  89. 2002.03.18_12:22 - 2002.05.22_19:43 Dynamics VIIc (hours 80724 - 82291)
  90. 2002.05.22_20:02 - 2002.05.24_20:06 Dynamics VIId (hours 82292 - 82340)
  91. 2002.05.24_20:08 - 2002.06.03_04:30 Dynamics VIIe (hours 82340 - 82564)
  92. 2002.06.09_06:00 - 2002.06.11_03:30 (hours 82710 - 82755)
  93. 2002.06.19_07:28 - 2002.06.24_10:14 (hours 82951 - 83074)
  94. 2002.06.29_00:56 - 2002.06.30_09:46 (hours 83184 - 83217)
  95. 2002.07.17_08:21 - 2002.07.22_00:08 (hours 83624 - 83736)
  96. 2002.08.01_19:49 - 2002.08.03_02:27 (hours 83995 - 84026)
  97. 2002.08.17_18:23 - 2002.08.20_08:12 (hours 84378 - 84440)
  98. 2002.08.28_06:33 - 2002.08.31_08:32 (hours 84630 - 84704)
  99. 2002.08.31_18:56 - 2002.09.03_01:55 (hours 84714 - 84769)
  100. 2002.09.18_17:30 - 2002.09.21_04:54 (hours 85145 - 85204)
  101. 2002.09.27_16:41 - 2002.09.29_08:01 (hours 85312 - 85400)
  102. 2002.10.27_15:51 - 2002.10.30_01:42 (hours 86079 - 86137)
  103. 2002.11.21_19:21 - 2002.11.24_03:45 (hours 86683 - 86379)
  104. 2002.11.28_15:24 - 2002.12.02_04:40 (hours 86847 - 86932)
  105. 2003.01.18_21:38 - 2003.02.16_04:20 Dynamics VIII (hours 88077 - 88756)
  106. 2003.03.26_11:20 - 2003.04.01_07:00 (hours 89675 - 89815)
  107. 2003.05.24_03:15 - 2003.05.27_23:54 (hours 91083 - 91175)
  108. 2003.06.19_07:08 - 2003.06.20_23:59 (hours 91711 - 91751)
  109. 2003.06.21_00:02 - 2003.06.22_04:54 (hours 91752 - 91780)
  110. 2003.07.23_15:43 - 2003.07.28_08:24 (hours 92535 - 92648)
  111. 2003.08.27_12:17 - 2003.08.29_13:39 (hours 93372 - 93421)
  112. 2003.09.11_00:59 - 2003.09.21_03:53 (hours 93720 - 93963)
  113. 2003.10.18_08:29 - 2003.11.17_00:50 Dynamics IX (hours 94616 - 95328)
  114. 2003.12.06_18:46 - 2003.12.08_14:14 (hours 95802 - 95846)
  115. 2004.01.26_13:32 - 2004.01.27_15:03 (hours 97021 - 97047)
  116. 2004.01.28_12:10 - 2004.02.02_15:41 (hours 97068 - 97191)
  117. 2004.02.07_18:53 - 2004.02.09_15:10 (hours 97314 - 97359)
  118. 2004.02.11_13:26 - 2004.02.17_12:25 (hours 97405 - 97548)
  119. 2004.02.21_04:29 - 2004.02.24_12:25 (hours 97636 - 97716)
  120. 2004.04.10_00:40 - 2004.04.11_00:59 (hours 98808 - 98832)
  121. 2004.04.29_13:14 - 2004.05.02_03:30 (hours 99277 - 99339)
  122. 2004.05.03_07:54 - 2004.05.04_09:56 (hours 99367 - 99393)
  123. 2004.05.08_11:24 - 2004.05.10_04:55 (hours 99491 - 99532)
  124. 2004.06.11_20:12 - 2004.06.16_01:29 (hours 100316 - 100417)
  125. 2004.07.04_15:04 - 2004.09.06_00:15 Dynamics X (hours 100863 - 102384)
  126. 2004.11.24_09:25 - 2004.11.25_18: (hours 104289 - 104322)
  127. 2004.11.25_19:42 - 2004.11.29_14:18 00 (hours 104323 - 104414)
  128. 2004.12.01_21:09 - 2004.12.04_14:45 (hours 104469 - 104534)
  129. 2005.06.25_00:51 - 2005.08.15_01:50 Dynamics XIa (hours 109392 - 110617)
  130. 2005.08.17_16:49 - 2005.08.31_03:53 Dynamics XIb (hours 110680 - 111003)
  131. 2006.03.24_13:31 - 2006.05.24_02:05 Dynamics XII (hours 115933 - 117386)
  132. 2007.12.09_16:09 - 2008.02.02_23:49 Dynamics XIIIa (hours 130936 - 132239)
  133. 2008.03.03_00:48 - 2008.05.04_04:39 Dynamics XIIIb (hours 132960 - 134452)
  134. 2009.05.18_15:23 - 2009.06.18_14:12 Dynamics XIVa (hours 143559 - 144302)
  135. 2009.07.02_10:23 - 2009.07.12_04:13 Dynamics XIVb (hours 144634 - 144868)
  136. 2009.07.14_21:28 - 2009.07.20_06:37 Dynamics XIVc (hours 144933 - 145062)
  137. 2010.05.08_08:32 - 2010.06.07_15:54 Dynamics XVa (hours 152072 - 152799)
  138. 2010.06.07_17:06 - 2010.06.15_00:09 Dynamics XVb (hours 152801 - 152976)
  139. 2010.06.15_00:11 - 2010.06.15_15:08 Dynamics XVc (hours 152976 - 152991)
  140. 2010.06.15_15:10 - 2010.06.28_16:01 Dynamics XVd (hours 152991 - 153304)
  141. 2010.06.28_16:00 - 2010.07.01_00:06 Dynamics XVe (hours 153304 - 153360)
  142. 2010.07.01_00:08 - 2010.07.01_13:34 Dynamics XVf (hours 153360 - 153373)
  143. 2010.07.01_18:17 - 2010.07.03_14:01 Dynamics XVg (hours 153378 - 153422)
  144. 2010.07.03_14:03 - 2010.07.10_02:51 Dynamics XVh (hours 153422 - 153578)
  145. 2010.07.10_06:06 - 2010.07.12_06:31 Dynamics XVi (hours 153582 - 153630)

Times of Michelson Tuning Changes

as of 2008.08.21 (see also MDI Events)
  1. 1995.12.21_22:00 (day 1084, hour 26038)
  2. 1996.04.11_20:46 (day 1196, hour 28724)
  3. 1996.05.18_02:43 (day 1233, hour 29594)
  4. 1996.07.25_18:46 (day 1301, hour 31242)
  5. 1997.03.18_21:05 (day 1537, hour 36909)
  6. 1997.08.05_20:55 (day 1677, hour 40268)
  7. 1998.01.06_17:06 (day 1831, hour 43961)
  8. 1998.10.15_11:18 (day 2113, hour 50723)
  9. 1999.04.21_21:36 (day 2301, hour 55245) (90-deg change in MTM2, should have no effect)
  10. 1999.09.07_21:18 (day 2440, hour 58581)
  11. 2000.01.28_17:47 (day 2583, hour 62009)
  12. 2000.07.14_00:17 (day 2751, hour 66024)
  13. 2001.01.19_19:23 (day 2940, hour 70579) (also increased exposure time)
  14. 2001.06.30_20:14 (day 3102, hour 74468)
  15. 2002.01.11_21:20 (day 3297, hour 79149)
  16. 2002.06.28_16:35 (day 3465, hour 83176)
  17. 2003.01.17_20:08 (day 3668, hour 88052) (also increased exposure time)
  18. 2003.07.11_15:30 (day 3843, hour 92247)
  19. 2003.08.26_19:18 (day 3889, hour 93355)
  20. 2004.02.03_17:49 (day 4050, hour 97217)
  21. 2004.06.11_19:35 (day 4179, hour 100315) (increased exposure time; no tuning change)
  22. 2004.07.03_00:42 (day 4201, hour 100824)
  23. 2005.01.19_20:22 (day 4401, hour 105644)
  24. 2005.06.24_18:04 (day 4557, hour 109386)
  25. 2006.01.20_16:33 (day 4767, hour 114424)
  26. 2006.03.21_20:12 (day 4827, hour 115868) (increased exposure time; no tuning change)
  27. 2006.06.26_21:04 (day 4924, hour 118197)
  28. 2007.01.16_21:09 (day 5128, hour 123093)
  29. 2007.06.19_16:55 (day 5282, hour 126784)
  30. 2008.02.04_21:18 (day 5512, hour 132309)
  31. 2008.06.17_20:04 (day 5646, hour 135524) (also increased exposure time)

Times of Onboard Flatfield and Focus Changes

as of 2008.08.21 (see also MDI Events)
  1. 1995.12.21 focus point change from 5 to 1
  2. 1996.04.01_12:00 onboard flatfield load
  3. 1996.05.07 - 1996.05.18 no onboard flatfield
  4. 1996.11.12_05:39 - 1996.11.27_23:17 no onboard flatfield
  5. 1996.12.02_20:29 - 1996.12.05_19:41 no onboard flatfield
  6. 1997.07.15_19:00 onboard flatfield change
  7. 1997.11.03_18:47 focus point change from 1 to 2
  8. 1998.??.?? - 1998.10.29 no onboard flatfield
  9. 1998.11.05_21:10 focus point change from 2 to 4
  10. 1998.11.11_19:50 focus point change from 4 to 2
  11. 1999.02.18_21:40 focus point change from 2 to 3
  12. 1999.03.11_23:33 focus point change from 3 to 4
  13. 1999.04.12_10:24 focus point change from 4 to 6
  14. 1999.04.14_14:12 focus point change from 6 to 4
  15. 1999.05.28_16:22 focus point change from 4 to 3
  16. 2000.05.08_21:19 focus point change from 3 to 4
  17. 2000.07.14_00:17 focus point change from 4 to 3
  18. 2000.08.14_19:28 focus point change from 3 to 4
  19. 2000.08.29_19:32 focus point change from 4 to 3
  20. 2001.02.28_00:40 focus point change from 3 to 4
  21. 2001.06.01_13:23 focus point change from 4 to 3
  22. 2001.11.12_21:03 focus point change from 3 to 4
  23. 2001.11.16_00:07 focus point change from 4 to 3
  24. 2002.01.11_21:26 focus point change from 3 to 4
  25. 2003.05.02_21:18 focus point changes every minute (transit obs. test)
  26. 2003.05.02_21:27 focus point set to 4
  27. 2003.05.06_18:35 focus point changes every minute (transit obs. test)
  28. 2003.05.06_18:56 focus point set to 4
  29. 2003.05.07_06:46 focus point changes every minute (transit obs.)
  30. 2003.05.07_15:57 focus point set to 4
  31. 2004.07.03_00:42 focus point change from 4 to 5
  32. 2005.10.11_19:52 focus point change from 5 to 4
  33. 2006.01.20_16:13 focus point change from 4 to 5
  34. 2006.06.26_21:00 focus point change from 5 to 4
  35. 2006.07.27_19:24 focus point changes every minute (transit obs. test)
  36. 2006.07.27_19:45 focus point set to 4
  37. 2006.09.21_15:51 focus point changes every minute (transit obs. test)
  38. 2006.09.21_16:26 focus point set to 4
  39. 2006.10.24_21:32 focus point change from 4 to 5
  40. 2006.11.06_21:28 focus point changes every minute (transit obs. test)
  41. 2006.11.06_22:40 focus point set to 5
  42. 2006.11.08_18:03 focus point changes every minute (transit obs.)
  43. 2006.11.09_03:04 focus point set to 5
  44. 2007.05.23_16:56 focus point change from 5 to 4
  45. 2007.06.19_16:55 focus point change from 4 to 5

Times of Leg Offsets to Correct Pointing

  1. 1996.11.08 (day 1407)
  2. 1999.07.09 (day 2308)

Times of Non-Zero Nominal Roll

exclusive of campaign rolls, see below
  1. 1998.09.27_00:05 - 1998.11.20_00:00
  2. 1999.02.01_00:00 - 1999.03.15_17:00
  3. 1999.11.16_16:38 - 1999.11.19_22:01
  4. 1999.11.29_18:34 - 1999.11.30_21:51
  5. 1999.12.02_19:42 - 1999.12.08_22:31
  6. 2000.01.07_23:48 - 2000.01.10_17:34
  7. 2000.02.08_14:39 - 2000.02.08_21:01
  8. 2001.01.14_21:03 - 2001.01.16_02:20

Other Significant Events


Page last revised Monday, 17-Dec-2012 11:45:42 PST
Please address comments and questions to Rick Bogart, SOI Data Scientist


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