Open Access
Agora – Historical space weather events and observations

Table A1

The digital data of the Clementinum storm, variations of the horizontal intensity and variations of the declination, recorded on 17 November 1848 by Kreil and Jelinek (1850). The first column in the table is the Göttingen Mean Solar Time (MST), which is ~40 min ahead of the Greenwich MST and ~18 min behind of the Clementinum MST.

Göttingen Variations
Göttingen
Variations
Göttingen
Variations
MST H [nT] D [′] MST H [nT] D [′] MST H [nT] D [′]
00:00:00 44.5 −20.9 06:04:52 31.7 −11.0 10:41:52 −321.0 38.3
00:04:52 49.3 −20.5 06:06:52 35.4 −11.4 10:43:52 −318.2 38.8
00:06:52 46.9 −20.8 06:08:52 35.3 −12.6 10:45:52 −326.6 41.3
00:08:52 47.8 −20.8 06:10:52 33.9 −13.8 10:47:52 −329.4 44.4
00:10:52 54.6 −21.3 06:12:52 18.9 −14.8 10:49:52 −308.1 48.3
00:12:52 46.6 −22.0 06:14:52 17.0 −16.5 10:51:52 −266.7 53.3
00:14:52 45.0 −20.3 06:16:52 15.5 −16.7 10:53:52 −238.3 57.7
00:16:52 52.6 −21.4 06:18:52 7.5 −17.8 10:57:52 −224.6 63.9
00:18:52 53.3 −22.5 08:00:00 −36.1 17.5 10:59:52 −219.0 64.3
00:20:52 53.0 −21.7 09:55:00 −223.8 15.9 11:01:52 −203.9 66.7
00:22:52 55.5 −21.8 10:00:00 −302.7 0.8 11:03:52 −186.7 66.9
01:00:00 58.8 −19.3 10:03:52 −309.6 0.4 11:05:52 −168.9 68.4
01:55:00 5.9 −6.8 10:05:52 −360.9 2.2 11:07:52 −141.7 69.8
02:00:00 24.2 −6.4 10:07:52 −373.3 −0.5 11:09:52 −131.6 68.3
02:04:52 31.2 −4.6 10:09:52 −378.3 −2.7 11:11:52 −119.1 64.0
02:06:52 28.4 −5.5 10:11:52 −360.7 −5.6 11:15:52 −92.3 55.4
02:08:52 30.7 −6.1 10:13:52 −370.2 −7.1 11:17:52 −87.6 48.6
02:10:52 31.4 −6.5 10:15:52 −362.0 −9.0 11:19:52 −88.3 44.9
03:55:00 −7.2 −29.5 10:17:52 −365.1 −9.4 11:21:52 −95.5 41.6
04:00:00 9.0 −26.5 10:19:52 −398.9 −13.2 11:23:52 −107.9 36.2
04:04:52 9.2 −31.6 10:21:52 −431.4 −18.6 11:25:52 −110.4 32.6
04:06:52 −0.7 −33.5 10:23:52 −434.1 −21.4 11:27:52 −111.4 32.4
04:08:52 −12.2 −33.6 10:25:52 −434.8 −17.2 11:29:52 −118.7 31.0
04:10:52 −23.2 −31.3 10:27:52 −432.5 −13.1 11:31:52 −126.2 32.0
04:12:52 −27.3 −27.8 10:29:52 −420.4 −5.1 11:33:52 −121.8 32.5
04:14:52 −25.8 −23.1 10:31:52 −363.6 4.1 18:00:00 −61.5 −38.8
04:16:52 −23.5 −20.2 10:33:52 −337.9 15.1 20:00:00 −10.8 −8.4
04:18:52 −19.4 −18.2 10:35:52 −352.3 27.5 22:00:00 0.9 −7.6
05:55:00 14.6 −13.9 10:37:52 −361.6 31.1 24:00:00 −26.6 −9.4
06:00:00 26.6 −12.5 10:39:52 −346.1 35.3

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