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Table 1 List of geomagnetic observatories

From: Ionospheric current contribution to the main impulse of a negative sudden impulse

Sr No Station Code Geographic Lat (°) Geographic Long (°E) Geomagnetic Lat (°) Sr No Station Code Geographic Lat (°) Geographic Long (°E) Geomagnetic Lat (°)
1 EBR 40.8 0.5 43.1 50 MIZ 39.1 141.2 30.6
2 CLF 48.0 2.3 49.8 51 ESA 39.2 141.4 30.7
3 DOU 50.1 4.6 51.4 52 CBI 27.1 142.2 18.7
4 TAM 22.8 5.5 24.7 53 MMB 43.9 144.2 35.4
5 MAB 50.3 5.7 51.4 54 GUA 13.6 144.9 5.3
6 WNG 53.7 9.1 54.1 55 CTA −20.1 146.3 −28.0
7 NGK 52.1 12.7 51.9 56 CNB −35.3 149.4 −42.7
8 BDV 49.1 14.0 48.8 57 MCQ −54.5 159.0 −60.1
9 UPS 59.9 17.4 58.5 58 EYR −43.4 172.4 −47.1
10 THY 46.9 17.9 46.0 59 SHU 55.4 199.5 54.4
11 HRB 47.9 18.2 46.9 60 HON 21.3 202.0 21.6
12 LYC 64.6 18.7 62.7 61 BRW 71.3 203.4 69.8
13 HLP 54.6 18.8 53.2 62 PPT −17.6 210.4 −15.1
14 ABK 68.4 18.8 66.1 63 CMO 64.9 212.1 65.4
15 HER −34.4 19.2 −34.0 64 SIT 57.1 224.7 60.3
16 BEL 51.8 20.8 50.2 65 VIC 48.5 236.6 54.1
17 LVV 49.9 23.8 47.9 66 FRN 37.1 240.3 43.5
18 PAG 42.5 24.2 40.6 67 NEW 48.3 242.9 54.9
19 NUR 60.5 24.7 57.9 68 YKC 62.5 245.5 68.9
20 SOD 67.4 26.6 64.0 69 MEA 54.6 246.7 61.6
21 HBK −25.9 27.7 −27.1 70 TUC 32.2 249.3 39.9
22 IZN 40.5 29.7 37.8 71 BOU 40.1 254.8 48.4
23 KIV 50.7 30.3 47.6 72 CBB 69.1 255.0 76.5
24 MOS 55.5 37.3 50.9 73 BLC 64.3 264.0 73.2
25 BOX 58.1 38.2 53.4 74 RES 74.7 265.1 82.8
26 AAE 9.0 38.8 5.4 75 FCC 58.8 265.9 67.9
27 TFS 42.1 44.7 36.8 76 BSL 30.4 270.4 40.1
28 MAW −67.6 62.9 −73.2 77 FRD 38.2 282.6 48.4
29 ABG 18.6 72.9 10.4 78 OTT 45.4 284.4 55.6
30 GUL 34.1 74.4 25.6 79 HUA −12.0 284.7 −2.1
31 JPR 26.9 75.8 18.4 80 THL 77.5 290.8 87.4
32 AAA 43.3 76.9 34.5 81 IQA 63.8 291.5 74.0
33 TIR 8.5 77.0 −0.1 82 SJG 18.1 293.9 28.3
34 NGP 21.2 79.1 12.3 83 TRW −43.3 294.6 −33.3
35 PON 11.9 79.9 2.5 84 AIA −65.2 295.7 −55.3
36 NVS 54.9 83.2 45.8 85 PST −51.7 302.1 −41.7
37 LZH 36.1 103.8 26.1 86 GDH 69.3 306.5 78.6
38 IRT 52.2 104.5 41.9 87 KOU 5.2 307.3 14.9
39 PHU 21.0 106.0 10.8 88 LRV 64.2 338.3 69.2
40 GZH 23.0 112.5 12.9 89 MBO 14.4 343.0 20.1
41 LRM −22.2 114.1 −32.4 90 GUI 28.3 343.6 33.8
42 GNA −31.8 115.9 −41.9 91 ASC −7.9 345.6 −2.4
43 BMT 49.7 116.2 30.1 92 VAL 51.9 349.8 55.8
44 TIK 71.6 129.0 65.3 93 SFS 36.7 354.1 39.9
45 KNY 31.4 130.9 22.2 94 HAD 51.0 355.5 53.9
46 KDU −12.7 132.5 −22.0 95 SPT 39.5 355.7 42.8
47 ASP −23.8 133.9 −32.9 96 ESK 55.3 356.8 57.8
48 KNZ 35.3 140.0 26.7 97 LER 60.1 358.8 62.0
49 KAK 36.2 140.2 27.4