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URL: https://celestrak.org/SpaceData/

⇱ CelesTrak: EOP and Space Weather Data



EOP and Space Weather Data

"Earth Orientation Parameter and Space Weather Data for Flight Operations,"
presented at the 23rd AAS/AIAA Space Flight Mechanics Meeting,
2013 February 10–14.

"Using EOP and Space Weather Data for Satellite Operations,"
presented at the 15th AIAA/AAS Astrodynamics Specialist Conference,
2005 August 7–11.

Earth Orientation Parameters (EOP) Data Documentation

Space Weather Data Documentation


NOAA Space Weather Scales

Geomagnetic Storms

2026-04-02 through 2026-04-06

UTC00000300060009001200150018002100
2026-04-02G1G1G1G1G2G1
2026-04-03G1G3G2G2
2026-04-04G1G1G1
2026-04-05
2026-04-06

Current as of 2026-04-04 06:29:25
Black cell outline shows current window


Graph of Sunspot Number & 10.7-cm Solar Flux Data


Earth Orientation Parameter (EOP) Data
CSV starting 1962 Jan 01
(2,362,700 bytes)
CSV starting 2021 Jan 01
(212,242 bytes)
Legacy starting 1962 Jan 01
(2,461,052 bytes)
Legacy starting 2021 Jan 01
(219,851 bytes)
Space Weather Data
CSV starting 1957 Oct 01
(2,869,261 bytes)
CSV starting 2021 Jan 01
(241,016 bytes)
Legacy starting 1957 Oct 01
(3,334,551 bytes)
Legacy starting 2021 Jan 01
(284,954 bytes)