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Hejda, Pavel; Revallo, Miloš; Valach, Fridrich (2021): Term-day magnetic observations from the Prague-Clementinum observatory on 1848-04-20 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.937037, 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: 2021-10-08DOI 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: 1848-04-19T21:20:12 * Date/Time End: 1848-04-20T21:20:12
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
DATE/TIMEDate/TimeHejda, PavelGeocode
Magnetic field, declinationDecldegHejda, PavelDigitising and processing of historical records
Magnetic field, H-componentH-compnTHejda, PavelDigitising and processing of historical records
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
578 data points

Data

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


Date/Time

Decl [deg]

H-comp [nT]
1848-04-19T21:20:12-14.905718882.4
1848-04-19T21:25:12-14.905318883.0
1848-04-19T21:30:12-14.901718884.8
1848-04-19T21:35:12-14.902918885.2
1848-04-19T21:40:12-14.905118884.8
1848-04-19T21:45:12-14.908518884.3
1848-04-19T21:50:12-14.909318883.5
1848-04-19T21:55:12-14.902918882.0
1848-04-19T22:00:12-14.894618881.7
1848-04-19T22:05:12-14.886818882.2
1848-04-19T22:10:12-14.884318882.3
1848-04-19T22:15:12-14.881918880.9
1848-04-19T22:20:12-14.878918880.2
1848-04-19T22:25:12-14.875918878.6
1848-04-19T22:30:12-14.878918876.8
1848-04-19T22:35:12-14.875718877.0
1848-04-19T22:40:12-14.875718878.3
1848-04-19T22:45:12-14.879318878.1
1848-04-19T22:50:12-14.884518880.6
1848-04-19T22:55:12-14.888418882.5
1848-04-19T23:00:12-14.888818883.8
1848-04-19T23:05:12-14.887418883.3
1848-04-19T23:10:12-14.880218882.4
1848-04-19T23:15:12-14.875318880.3
1848-04-19T23:20:12-14.869718879.5
1848-04-19T23:25:12-14.865618878.7
1848-04-19T23:30:12-14.863418879.1
1848-04-19T23:35:12-14.865618879.7
1848-04-19T23:40:12-14.868118880.3
1848-04-19T23:45:12-14.869418880.9
1848-04-19T23:50:12-14.876818881.3
1848-04-19T23:55:12-14.884618880.8
1848-04-20T00:00:12-14.893218880.6
1848-04-20T00:05:12-14.896818887.4
1848-04-20T00:10:12-14.895118887.1
1848-04-20T00:15:12-14.889018891.4
1848-04-20T00:20:12-14.883518892.1
1848-04-20T00:25:12-14.876318892.1
1848-04-20T00:30:12-14.873918890.1
1848-04-20T00:35:12-14.873618888.2
1848-04-20T00:40:12-14.867318885.9
1848-04-20T00:45:12-14.861418882.8
1848-04-20T00:50:12-14.862218878.4
1848-04-20T00:55:12-14.866418876.6
1848-04-20T01:00:12-14.866618874.1
1848-04-20T01:05:12-14.869418871.8
1848-04-20T01:10:12-14.869018869.8
1848-04-20T01:15:12-14.867818868.0
1848-04-20T01:20:12-14.867018867.5
1848-04-20T01:25:12-14.867318866.5
1848-04-20T01:30:12-14.867318865.5
1848-04-20T01:35:12-14.869218864.8
1848-04-20T01:40:12-14.867418864.5
1848-04-20T01:45:12-14.866018865.2
1848-04-20T01:50:12-14.866818865.5
1848-04-20T01:55:12-14.868218864.9
1848-04-20T02:00:12-14.866818863.9
1848-04-20T02:05:12-14.866218862.9
1848-04-20T02:10:12-14.868118862.8
1848-04-20T02:15:12-14.869618862.6
1848-04-20T02:20:12-14.877118861.1
1848-04-20T02:25:12-14.879118861.2
1848-04-20T02:30:12-14.882218860.4
1848-04-20T02:35:12-14.881718860.9
1848-04-20T02:40:12-14.883918860.9
1848-04-20T02:45:12-14.883918861.7
1848-04-20T02:50:12-14.882718862.2
1848-04-20T02:55:12-14.881818863.1
1848-04-20T03:00:12-14.881418861.4
1848-04-20T03:05:12-14.871418862.2
1848-04-20T03:10:12-14.876518862.1
1848-04-20T03:15:12-14.873318860.9
1848-04-20T03:20:12-14.870418861.0
1848-04-20T03:25:12-14.868618861.1
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1848-04-20T03:40:12-14.862218860.4
1848-04-20T03:45:12-14.861418860.8
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1848-04-20T04:20:12-14.856918859.5
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1848-04-20T04:30:12-14.847418860.1
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1848-04-20T05:35:12-14.827718854.9
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1848-04-20T05:55:12-14.819618853.9
1848-04-20T06:00:12-14.816118853.3
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1848-04-20T06:15:12-14.810218851.5
1848-04-20T06:20:12-14.797018849.7
1848-04-20T06:25:12-14.788618850.0
1848-04-20T06:30:12-14.787818848.6
1848-04-20T06:35:12-14.786018847.6
1848-04-20T06:40:12-14.782118846.3
1848-04-20T06:45:12-14.783418845.9
1848-04-20T06:50:12-14.784518844.6
1848-04-20T06:55:12-14.784218843.1
1848-04-20T07:00:12-14.782618842.5
1848-04-20T07:05:12-14.785818849.0
1848-04-20T07:10:12-14.785618848.0
1848-04-20T07:15:12-14.780918837.6
1848-04-20T07:20:12-14.784118835.9
1848-04-20T07:25:12-14.782218833.7
1848-04-20T07:30:12-14.781118832.8
1848-04-20T07:35:12-14.784818831.7
1848-04-20T07:40:12-14.785618830.0
1848-04-20T07:45:12-14.786018828.3
1848-04-20T07:50:12-14.785018828.0
1848-04-20T07:55:12-14.788218826.7
1848-04-20T08:00:12-14.791518825.6
1848-04-20T08:05:12-14.795118826.3
1848-04-20T08:10:12-14.796618824.4
1848-04-20T08:15:12-14.799118823.0
1848-04-20T08:20:12-14.806018822.6
1848-04-20T08:25:12-14.814218821.5
1848-04-20T08:30:12-14.818818820.6
1848-04-20T08:35:12-14.824118820.0
1848-04-20T08:40:12-14.831518819.2
1848-04-20T08:45:12-14.835718818.2
1848-04-20T08:50:12-14.841818816.4
1848-04-20T08:55:12-14.849418815.0
1848-04-20T09:00:12-14.856918813.5
1848-04-20T09:05:12-14.865618812.5
1848-04-20T09:10:12-14.871218811.0
1848-04-20T09:15:12-14.873618809.5
1848-04-20T09:20:12-14.875318810.0
1848-04-20T09:25:12-14.878318808.8
1848-04-20T09:30:12-14.884118810.0
1848-04-20T09:35:12-14.894318811.3
1848-04-20T09:40:12-14.908518811.7
1848-04-20T09:45:12-14.918618811.4
1848-04-20T09:50:12-14.925218811.8
1848-04-20T09:55:12-14.931118810.9
1848-04-20T10:00:12-14.936118810.9
1848-04-20T10:05:12-14.938918813.1
1848-04-20T10:10:12-14.948618814.0
1848-04-20T10:15:12-14.954918815.4
1848-04-20T10:20:12-14.957718818.0
1848-04-20T10:25:12-14.966618819.5
1848-04-20T10:30:12-14.973018821.1
1848-04-20T10:35:12-14.982918822.0
1848-04-20T10:40:12-14.989018822.4
1848-04-20T10:45:12-14.993818822.5
1848-04-20T10:50:12-14.997018823.6
1848-04-20T10:55:12-15.001018824.9
1848-04-20T11:00:12-15.006518826.2
1848-04-20T11:05:12-15.009218827.5
1848-04-20T11:10:12-15.013918827.9
1848-04-20T11:15:12-15.020818830.2
1848-04-20T11:20:12-15.027618830.8
1848-04-20T11:25:12-15.031518831.3
1848-04-20T11:30:12-15.036618831.7
1848-04-20T11:35:12-15.041718833.3
1848-04-20T11:40:12-15.045618834.0
1848-04-20T11:45:12-15.047918833.9
1848-04-20T11:50:12-15.048618834.2
1848-04-20T11:55:12-15.050818835.8
1848-04-20T12:00:12-15.054818836.5
1848-04-20T12:05:12-15.057418837.5
1848-04-20T12:10:12-15.058518838.5
1848-04-20T12:15:12-15.058818839.5
1848-04-20T12:20:12-15.060518839.2
1848-04-20T12:25:12-15.062718839.7
1848-04-20T12:30:12-15.064918841.2
1848-04-20T12:35:12-15.062918841.5
1848-04-20T12:40:12-15.064118842.1
1848-04-20T12:45:12-15.060718842.6
1848-04-20T12:50:12-15.059518843.0
1848-04-20T12:55:12-15.058118844.1
1848-04-20T13:00:12-15.056518845.4
1848-04-20T13:05:12-15.052018844.6
1848-04-20T13:10:12-15.048018845.0
1848-04-20T13:15:12-15.043918846.2
1848-04-20T13:20:12-15.041518846.4
1848-04-20T13:25:12-15.039118847.1
1848-04-20T13:30:12-15.037118848.4
1848-04-20T13:35:12-15.033818849.7
1848-04-20T13:40:12-15.031218851.0
1848-04-20T13:45:12-15.030018851.4
1848-04-20T13:50:12-15.022818852.2
1848-04-20T13:55:12-15.022518853.0
1848-04-20T14:00:12-15.019818853.5
1848-04-20T14:05:12-15.017518854.1
1848-04-20T14:10:12-15.015418854.8
1848-04-20T14:15:12-15.012018854.7
1848-04-20T14:20:12-15.008518854.6
1848-04-20T14:25:12-15.004918854.8
1848-04-20T14:30:12-14.999518854.2
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1848-04-20T14:40:12-14.993618854.0
1848-04-20T14:45:12-14.989218854.1
1848-04-20T14:50:12-14.985318854.4
1848-04-20T14:55:12-14.979918855.2
1848-04-20T15:00:12-14.977218864.4
1848-04-20T15:05:12-14.972918853.8
1848-04-20T15:10:12-14.970118853.3
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1848-04-20T15:20:12-14.961618852.9
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1848-04-20T15:40:12-14.950918852.9
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1848-04-20T17:50:12-14.935418860.6
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1848-04-20T19:00:12-14.930318857.7
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1848-04-20T19:10:12-14.931518856.2
1848-04-20T19:15:12-14.928518857.6
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1848-04-20T19:40:12-14.927718858.8
1848-04-20T19:45:12-14.925118857.7
1848-04-20T19:50:12-14.913518857.9
1848-04-20T19:55:12-14.903518857.9
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1848-04-20T20:40:12-14.903718860.4
1848-04-20T20:45:12-14.902218861.8
1848-04-20T20:50:12-14.904918862.5
1848-04-20T20:55:12-14.902718862.4
1848-04-20T21:00:12-14.898918860.2
1848-04-20T21:05:12-14.893418861.4
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1848-04-20T21:15:12-14.889318855.9
1848-04-20T21:20:12-14.888618855.4