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Hejda, Pavel; Revallo, Miloš; Valach, Fridrich (2021): Term-day magnetic observations from the Prague-Clementinum observatory on 1848-10-19 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.937043, 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

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Published: 2021-10-08 • DOI registered: 2022-01-31

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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: 1848-10-18T21:20:12 * Date/Time End: 1848-10-19T21:20:12
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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 DATE/TIMEDate/TimeHejda, PavelGeocode
2 Magnetic field, declinationDecldegHejda, PavelDigitising and processing of historical records
3 Magnetic field, H-componentH-compnTHejda, PavelDigitising and processing of historical records
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
575 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Date/Time
2 
Decl [deg]
3 
H-comp [nT]
1848-10-18T21:20:12-15.006918744.3
1848-10-18T21:25:12-15.011618765.7
1848-10-18T21:30:12-14.899118737.5
1848-10-18T21:35:12-14.788918730.7
1848-10-18T21:40:12-14.545418756.1
1848-10-18T21:45:12-14.252618832.8
1848-10-18T21:50:12-14.252218841.5
1848-10-18T21:55:12-14.240918852.9
1848-10-18T22:00:12-14.171618891.9
1848-10-18T22:05:12-14.445618856.3
1848-10-18T22:10:12-14.722418815.3
1848-10-18T22:15:12-14.714018768.9
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1848-10-18T22:25:12-14.414018779.4
1848-10-18T22:30:12-14.398018799.2
1848-10-18T22:35:12-14.519718789.8
1848-10-18T22:40:12-14.622718764.9
1848-10-18T22:45:12-14.601318752.0
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1848-10-18T23:00:12-14.251218839.4
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1848-10-19T07:45:12-14.891818708.1
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1848-10-19T08:15:12-14.917918723.6
1848-10-19T08:20:12-14.929618723.2
1848-10-19T08:25:12-14.934418730.4
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1848-10-19T10:10:12-14.913418759.8
1848-10-19T10:15:12-14.897418748.4
1848-10-19T10:20:12-14.924418785.0
1848-10-19T10:25:12-15.022918785.0
1848-10-19T10:30:12-15.032418780.1
1848-10-19T10:35:12-14.994018769.8
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1848-10-19T10:45:12-15.001018758.5
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1848-10-19T11:00:12-15.016118751.4
1848-10-19T11:05:12-15.032818745.5
1848-10-19T11:10:12-14.998218741.5
1848-10-19T11:15:12-15.008718734.6
1848-10-19T11:20:12-15.019218732.9
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1848-10-19T12:00:12-15.064318726.0
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1848-10-19T14:25:12-14.852818801.1
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1848-10-19T15:00:12-14.848818802.3
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1848-10-19T18:25:12-14.881118814.7
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1848-10-19T19:40:12-14.863518815.5
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1848-10-19T19:50:12-14.839118822.3
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1848-10-19T20:55:12-14.891918849.2
1848-10-19T21:00:12-14.943918842.7
1848-10-19T21:05:12-14.9594
1848-10-19T21:10:12-14.943318828.6
1848-10-19T21:15:12-14.914818829.1
1848-10-19T21:20:12-14.885718828.9