IUGG: Association of Geomagnetism and Aeronomy

(International Service of Geomagnetic Indices)


January 2021

International quiet and disturbed days

Quietest days 1 - 5:2314831
6 - 10: 30421179
Most disturbed days 1 - 5:25*11*26*6*27*

Geomagnetic Planetary Indices

Kp three-hourlydaily
12345678SumApCp
10o0+1-0+0+ 1+1-1-4+20.0
20+0o0o0+0o 0o0o0o1-00.0
30o0o0o0o0+ 0+0o0+1o10.0
40+0o0+1-0+ 0+0+0+3-20.0
52-1-1o1-4o 3-1+4-16-100.6
63o3o4-2+2- 2-1+1+18o100.6
71+2-1o1-0+ 0+1+2+9o40.2
80+0+0+0+0+ 0o0o0+2o20.0
91-1+0+0+0o 0o0o0o3-20.0
101-0+1-0+0o 1-1o1o5-30.0
111o0o0+2+3+ 4-3+4o18o120.7
124-3o2+2o1+ 1o1o1-15o90.5
131-0+0+1o1+ 1-1-1o6o30.1
140o0o0o0+0+ 0+0o0+1+10.0
152-0o0o0o0o 1o1o0+4o20.0
160+1o1-1-1- 1-1-1o6-30.1
170+1+0o0o0+ 0o0o0+2+10.0
181-2-0o0o0+ 0o1+2o6o30.1
193-2o1-1o1+ 1-1+1-10+50.2
201-1-2o2-2+ 2o1o0+11-50.2
210o0+0o0+0o 0+0o1o2o10.0
220+0o0o0o1- 1o1o1o4o20.0
231-0o1o1o0o 1-1+2o7-30.1
240+2-1o1-1+ 1+2-2o10o50.2
252-2-3+3+2+ 3-2+5-22o150.8
264-4o2-1o1+ 2+2+2o18+110.6
272+3+2o2+2- 3-1o3o18+100.6
283o0+1-0+0o 0o0o0+5-30.1
290o1o1o0+0+ 0+0+1-4o20.0
300o0+0o0+0+ 1-0+0o2o10.0
311-0o0o0o0o 0o0o1-1+10.0
Mean40.18

Preliminary sudden commencements: none

Editor: GFZ German Research Centre for Geosciences
Adolf Schmidt Observatory for Geomagnetism
https://www.gfz-potsdam.de/en/kp-index/