/* DATA DESCRIPTION:
Citation:	Hejda, Pavel; Revallo, Miloš; Valach, Fridrich (2021): Term-day magnetic observations from the Prague-Clementinum observatory on 1840-12-24 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.936947, 
	In: Hejda, P et al. (2021): Data of magnetic storms and term-day observations from the Prague-Clementinum observatory (1839-1849) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.936921
Abstract:	Data of term-day observations recorded at the Prague-Clementinum observatory in years 1840-1849 are presented. The data were obtained by digitising and processing the original old records published in the yearbooks of this historical observatory. The term-day observations had been agreed for joint measurements by the observatories organised in the Göttingen Magnetic Union (GMU). Data of 120 term-days from January 1840 to December 1849 are published. The observations started at 10 p.m. of Göttingen Mean Time and lasted 24 hours. The interval between observations was 5 minutes (in April, June and July 1842 exceptionally 6 minutes). All time data were transformed into UT, based on the longitude of the Göttingen observatory, which was 9.950°. The time shift is thus 39'48''. The date in the term-day file name indicates the second day which involves substantial part of the observations (22 out of 24 hours).
Coverage:	LATITUDE: 50.086000 * LONGITUDE: 14.416000
	DATE/TIME START: 1840-12-23T21:20:12 * DATE/TIME END: 1840-12-24T21:20:12
	MINIMUM ELEVATION: 190.0 m * MAXIMUM ELEVATION: 190.0 m
Event(s):	Clementinum (Clementinum geomagnetic observatory in Prague) * LATITUDE: 50.086000 * LONGITUDE: 14.416000 * ELEVATION: 190.0 m * METHOD/DEVICE: Geomagnetic observatory (MAGOBS)
Parameter(s):	DATE/TIME (Date/Time) * GEOCODE * PI: Hejda, Pavel (https://orcid.org/0000-0002-3576-5754, ph@ig.cas.cz, https://www.ig.cas.cz/en/contact/staff/pavel-hejda/)
	Magnetic field, declination [deg] (Decl) * PI: Hejda, Pavel (https://orcid.org/0000-0002-3576-5754, ph@ig.cas.cz, https://www.ig.cas.cz/en/contact/staff/pavel-hejda/) * METHOD/DEVICE: Digitising and processing of historical records
	Magnetic field, H-component [nT] (H-comp) * PI: Hejda, Pavel (https://orcid.org/0000-0002-3576-5754, ph@ig.cas.cz, https://www.ig.cas.cz/en/contact/staff/pavel-hejda/) * METHOD/DEVICE: Digitising and processing of historical records
License:	Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/)
Status:	Curation Level: Enhanced curation (URI: https://wiki.pangaea.de/wiki/Curation_levels)
Size:	430 data points
*/
Date/Time	Decl [deg]	H-comp [nT]
1840-12-23T21:20:12	-15.6044	18561.5
1840-12-23T21:25:12	-15.5964	
1840-12-23T21:30:12	-15.5932	18554.4
1840-12-23T21:35:12	-15.5787	
1840-12-23T21:40:12	-15.5612	18552.7
1840-12-23T21:45:12	-15.5709	
1840-12-23T21:50:12	-15.5758	18554.6
1840-12-23T21:55:12	-15.6042	
1840-12-23T22:00:12	-15.6174	18562.5
1840-12-23T22:05:12	-15.6468	
1840-12-23T22:10:12	-15.6553	18553.1
1840-12-23T22:15:12	-15.6504	
1840-12-23T22:20:12	-15.6207	18545.6
1840-12-23T22:25:12	-15.5875	
1840-12-23T22:30:12	-15.5587	18553.7
1840-12-23T22:35:12	-15.5493	
1840-12-23T22:40:12	-15.5393	18558.4
1840-12-23T22:45:12	-15.5283	
1840-12-23T22:50:12	-15.5132	18562.3
1840-12-23T22:55:12	-15.5158	
1840-12-23T23:00:12	-15.5178	18565.5
1840-12-23T23:05:12	-15.5396	
1840-12-23T23:10:12	-15.5467	18562.2
1840-12-23T23:15:12	-15.5543	
1840-12-23T23:20:12	-15.5620	18560.0
1840-12-23T23:25:12	-15.5725	
1840-12-23T23:30:12	-15.5844	18564.3
1840-12-23T23:35:12	-15.5903	
1840-12-23T23:40:12	-15.5982	18559.5
1840-12-23T23:45:12	-15.5928	
1840-12-23T23:50:12	-15.5904	18563.4
1840-12-23T23:55:12	-15.6103	
1840-12-24T00:00:12	-15.6713	18562.4
1840-12-24T00:05:12	-15.7135	
1840-12-24T00:10:12	-15.7302	18568.4
1840-12-24T00:15:12	-15.7179	
1840-12-24T00:20:12	-15.7101	18576.7
1840-12-24T00:25:12	-15.6961	
1840-12-24T00:30:12	-15.6833	18585.0
1840-12-24T00:35:12	-15.6797	
1840-12-24T00:40:12	-15.6906	18587.2
1840-12-24T00:45:12	-15.6844	
1840-12-24T00:50:12	-15.6773	18580.3
1840-12-24T00:55:12	-15.6622	
1840-12-24T01:00:12	-15.6361	18572.1
1840-12-24T01:05:12	-15.6194	
1840-12-24T01:10:12	-15.6031	18571.3
1840-12-24T01:15:12	-15.5891	
1840-12-24T01:20:12	-15.5748	18571.8
1840-12-24T01:25:12	-15.5642	
1840-12-24T01:30:12	-15.5546	18567.1
1840-12-24T01:35:12	-15.5464	
1840-12-24T01:40:12	-15.5533	18567.3
1840-12-24T01:45:12	-15.5654	
1840-12-24T01:50:12	-15.5866	18566.7
1840-12-24T01:55:12	-15.5987	
1840-12-24T02:00:12	-15.5907	18563.0
1840-12-24T02:05:12	-15.6005	
1840-12-24T02:10:12	-15.5912	18557.6
1840-12-24T02:15:12	-15.6102	
1840-12-24T02:20:12	-15.6049	18558.3
1840-12-24T02:25:12	-15.5894	
1840-12-24T02:30:12	-15.6000	18563.4
1840-12-24T02:35:12	-15.6160	
1840-12-24T02:40:12	-15.6137	18557.7
1840-12-24T02:45:12	-15.5921	
1840-12-24T02:50:12	-15.6178	18551.3
1840-12-24T02:55:12	-15.6231	
1840-12-24T03:00:12	-15.6291	18563.3
1840-12-24T03:05:12	-15.6103	
1840-12-24T03:10:12	-15.6042	18560.8
1840-12-24T03:15:12	-15.5808	
1840-12-24T03:20:12	-15.5813	18570.8
1840-12-24T03:25:12	-15.5732	
1840-12-24T03:30:12	-15.5532	18575.7
1840-12-24T03:35:12	-15.5642	
1840-12-24T03:40:12	-15.5802	18582.0
1840-12-24T03:45:12	-15.5921	
1840-12-24T03:50:12	-15.6048	
1840-12-24T03:55:12	-15.6006	
1840-12-24T04:00:12	-15.6253	18578.8
1840-12-24T04:05:12	-15.6367	
1840-12-24T04:10:12	-15.6418	18578.6
1840-12-24T04:15:12	-15.6342	
1840-12-24T04:20:12	-15.6378	18575.8
1840-12-24T04:25:12	-15.6352	
1840-12-24T04:30:12	-15.6423	18575.2
1840-12-24T04:35:12	-15.6336	
1840-12-24T04:40:12	-15.6346	18576.2
1840-12-24T04:45:12	-15.6318	
1840-12-24T04:50:12	-15.6313	18581.2
1840-12-24T04:55:12	-15.6512	
1840-12-24T05:00:12	-15.6535	18576.2
1840-12-24T05:05:12	-15.6575	
1840-12-24T05:10:12	-15.6473	18576.9
1840-12-24T05:15:12	-15.6512	
1840-12-24T05:20:12	-15.6459	18575.0
1840-12-24T05:25:12	-15.6453	
1840-12-24T05:30:12	-15.6501	18577.9
1840-12-24T05:35:12	-15.6613	
1840-12-24T05:40:12	-15.6651	18577.1
1840-12-24T05:45:12	-15.6565	
1840-12-24T05:50:12	-15.6575	18579.9
1840-12-24T05:55:12	-15.6671	
1840-12-24T06:00:12	-15.6714	18581.5
1840-12-24T06:05:12	-15.6485	
1840-12-24T06:10:12	-15.6571	18587.2
1840-12-24T06:15:12	-15.6689	
1840-12-24T06:20:12	-15.6715	18584.2
1840-12-24T06:25:12	-15.6739	
1840-12-24T06:30:12	-15.6646	18585.1
1840-12-24T06:35:12	-15.6395	
1840-12-24T06:40:12	-15.6506	18593.8
1840-12-24T06:45:12	-15.6621	
1840-12-24T06:50:12	-15.6484	18586.8
1840-12-24T06:55:12	-15.6324	
1840-12-24T07:00:12	-15.6365	18588.1
1840-12-24T07:05:12	-15.6333	
1840-12-24T07:10:12	-15.6457	18591.9
1840-12-24T07:15:12	-15.6379	
1840-12-24T07:20:12	-15.6400	18590.2
1840-12-24T07:25:12	-15.6251	
1840-12-24T07:30:12	-15.6072	18596.1
1840-12-24T07:35:12	-15.6270	
1840-12-24T07:40:12	-15.6268	18594.3
1840-12-24T07:45:12	-15.6460	
1840-12-24T07:50:12	-15.6335	18590.9
1840-12-24T07:55:12	-15.6364	
1840-12-24T08:00:12	-15.6379	18592.6
1840-12-24T08:05:12	-15.6572	
1840-12-24T08:10:12	-15.6840	18590.0
1840-12-24T08:15:12	-15.6110	
1840-12-24T08:20:12	-15.6290	18590.4
1840-12-24T08:25:12	-15.6400	
1840-12-24T08:30:12	-15.6339	18586.9
1840-12-24T08:35:12	-15.6549	
1840-12-24T08:40:12	-15.6592	18586.1
1840-12-24T08:45:12	-15.6633	
1840-12-24T08:50:12	-15.6510	18586.1
1840-12-24T08:55:12	-15.6761	
1840-12-24T09:00:12	-15.6699	18583.3
1840-12-24T09:05:12	-15.6697	
1840-12-24T09:10:12	-15.6709	18579.5
1840-12-24T09:15:12	-15.6687	
1840-12-24T09:20:12	-15.6766	18577.6
1840-12-24T09:25:12	-15.6866	
1840-12-24T09:30:12	-15.7120	18572.5
1840-12-24T09:35:12	-15.7279	
1840-12-24T09:40:12	-15.7292	
1840-12-24T09:45:12	-15.7153	
1840-12-24T09:50:12	-15.7006	18568.2
1840-12-24T09:55:12	-15.7013	
1840-12-24T10:00:12	-15.7135	18558.4
1840-12-24T10:05:12	-15.7175	
1840-12-24T10:10:12	-15.7224	18545.6
1840-12-24T10:15:12	-15.7032	
1840-12-24T10:20:12	-15.7085	18573.6
1840-12-24T10:25:12	-15.7156	
1840-12-24T10:30:12	-15.7041	18566.9
1840-12-24T10:35:12	-15.7048	
1840-12-24T10:40:12	-15.7283	18569.1
1840-12-24T10:45:12	-15.7312	
1840-12-24T10:50:12	-15.7460	18560.7
1840-12-24T10:55:12	-15.7313	
1840-12-24T11:00:12	-15.7232	18556.0
1840-12-24T11:05:12	-15.7232	
1840-12-24T11:10:12	-15.7291	18559.4
1840-12-24T11:15:12	-15.7394	
1840-12-24T11:20:12	-15.7352	18566.0
1840-12-24T11:25:12	-15.7425	
1840-12-24T11:30:12	-15.7556	18568.9
1840-12-24T11:35:12	-15.7639	
1840-12-24T11:40:12	-15.7486	18561.6
1840-12-24T11:45:12	-15.7344	
1840-12-24T11:50:12	-15.7205	18564.3
1840-12-24T11:55:12	-15.7237	
1840-12-24T12:00:12	-15.7227	18567.4
1840-12-24T12:05:12	-15.7336	
1840-12-24T12:10:12	-15.7375	18571.6
1840-12-24T12:15:12	-15.7361	
1840-12-24T12:20:12	-15.7156	18575.0
1840-12-24T12:25:12	-15.7217	
1840-12-24T12:30:12	-15.7136	18581.1
1840-12-24T12:35:12	-15.7166	
1840-12-24T12:40:12	-15.7262	18583.6
1840-12-24T12:45:12	-15.7327	
1840-12-24T12:50:12	-15.7599	18591.4
1840-12-24T12:55:12	-15.7531	18583.5
1840-12-24T13:00:12	-15.7745	
1840-12-24T13:05:12	-15.7583	
1840-12-24T13:10:12	-15.7556	18533.4
1840-12-24T13:15:12	-15.7491	
1840-12-24T13:20:12	-15.7390	
1840-12-24T13:25:12	-15.7268	
1840-12-24T13:30:12	-15.7296	18554.8
1840-12-24T13:35:12	-15.7143	
1840-12-24T13:40:12	-15.7165	
1840-12-24T13:45:12	-15.7322	
1840-12-24T13:50:12	-15.7322	18561.9
1840-12-24T13:55:12	-15.7220	
1840-12-24T14:00:12	-15.7022	18563.0
1840-12-24T14:05:12	-15.7013	
1840-12-24T14:10:12	-15.7065	18566.6
1840-12-24T14:15:12	-15.7091	
1840-12-24T14:20:12	-15.6962	18551.6
1840-12-24T14:25:12	-15.6926	
1840-12-24T14:30:12	-15.6879	18547.5
1840-12-24T14:35:12	-15.6816	
1840-12-24T14:40:12	-15.6545	18550.4
1840-12-24T14:45:12	-15.6386	
1840-12-24T14:50:12	-15.6270	18561.4
1840-12-24T14:55:12	-15.6352	
1840-12-24T15:00:12	-15.6389	18569.2
1840-12-24T15:05:12	-15.6472	
1840-12-24T15:10:12	-15.6557	18566.9
1840-12-24T15:15:12	-15.6643	
1840-12-24T15:20:12	-15.6828	18563.8
1840-12-24T15:25:12	-15.6872	
1840-12-24T15:30:12	-15.6736	18568.1
1840-12-24T15:35:12	-15.6705	
1840-12-24T15:40:12	-15.6671	18569.2
1840-12-24T15:45:12	-15.6722	
1840-12-24T15:50:12	-15.6688	18570.4
1840-12-24T15:55:12	-15.6632	
1840-12-24T16:00:12	-15.6581	18575.5
1840-12-24T16:05:12	-15.6577	
1840-12-24T16:10:12	-15.6553	18577.9
1840-12-24T16:15:12	-15.6556	
1840-12-24T16:20:12	-15.6620	18579.4
1840-12-24T16:25:12	-15.6618	
1840-12-24T16:30:12	-15.6554	18584.7
1840-12-24T16:35:12	-15.6550	
1840-12-24T16:40:12	-15.6631	18578.8
1840-12-24T16:45:12	-15.6678	
1840-12-24T16:50:12	-15.6745	18577.5
1840-12-24T16:55:12	-15.6736	
1840-12-24T17:00:12	-15.6723	18581.5
1840-12-24T17:05:12	-15.6640	
1840-12-24T17:10:12	-15.6708	18581.0
1840-12-24T17:15:12	-15.6713	
1840-12-24T17:20:12	-15.6645	18576.6
1840-12-24T17:25:12	-15.6593	
1840-12-24T17:30:12	-15.6510	18572.5
1840-12-24T17:35:12	-15.6401	
1840-12-24T17:40:12	-15.6268	18569.8
1840-12-24T17:45:12	-15.6144	
1840-12-24T17:50:12	-15.5937	18574.3
1840-12-24T17:55:12	-15.5804	
1840-12-24T18:00:12	-15.5860	18574.1
1840-12-24T18:05:12	-15.5716	
1840-12-24T18:10:12	-15.5550	18582.5
1840-12-24T18:15:12	-15.5446	
1840-12-24T18:20:12	-15.5287	18590.9
1840-12-24T18:25:12	-15.5482	
1840-12-24T18:30:12	-15.5701	18590.4
1840-12-24T18:35:12	-15.6055	
1840-12-24T18:40:12	-15.6262	18586.2
1840-12-24T18:45:12	-15.6343	
1840-12-24T18:50:12	-15.6007	18587.4
1840-12-24T18:55:12	-15.5670	
1840-12-24T19:00:12	-15.5698	18601.1
1840-12-24T19:05:12	-15.5928	
1840-12-24T19:10:12	-15.5872	18608.5
1840-12-24T19:15:12	-15.6039	
1840-12-24T19:20:12	-15.6219	18597.0
1840-12-24T19:25:12	-15.6383	
1840-12-24T19:30:12	-15.6457	18579.6
1840-12-24T19:35:12	-15.6073	
1840-12-24T19:40:12	-15.6055	18586.4
1840-12-24T19:45:12	-15.5522	
1840-12-24T19:50:12	-15.5584	18594.2
1840-12-24T19:55:12	-15.5833	
1840-12-24T20:00:12	-15.6093	18582.0
1840-12-24T20:05:12	-15.6217	
1840-12-24T20:10:12	-15.6139	18575.1
1840-12-24T20:15:12	-15.5878	
1840-12-24T20:20:12	-15.5581	18582.0
1840-12-24T20:25:12	-15.5422	
1840-12-24T20:30:12	-15.5290	18579.8
1840-12-24T20:35:12	-15.5080	
1840-12-24T20:40:12	-15.5213	18585.2
1840-12-24T20:45:12	-15.5399	
1840-12-24T20:50:12	-15.5608	18586.8
1840-12-24T20:55:12	-15.5776	
1840-12-24T21:00:12	-15.5931	18581.0
1840-12-24T21:05:12	-15.6005	
1840-12-24T21:10:12	-15.6160	18578.2
1840-12-24T21:15:12	-15.6184	
1840-12-24T21:20:12	-15.6274	18579.0