CelesTrak

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NORAD Two-Line Element Sets
Current Data Historical Archives Documentation
Software Repository
Computers & Satellites Columns
"Frequently Asked Questions: Two-Line Element Set Format"
"More Frequently Asked Questions"
Special Event Coverage
ORS-3 Launch of 2013 Nov 20
Dnepr Launch of 2013 Nov 21
Breeze-M Rocket Body (38746) Breakup
Iridium 33/Cosmos 2251 Collision
USA 193 Post-Shootdown Analysis
Chinese ASAT Test
2007 Debris Events
Online Satellite Catalog (SATCAT)
Search the SATCAT SATCAT Boxscore
SOCRATES
Satellite Orbital Conjunction Reports
Assessing Threatening Encounters in Space
GPS Data
Status Messages NANUs
SEM Almanacs Yuma Almanacs
Space Data
Earth Orientation Parameters Space Weather
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Dr. T.S. Kelso [TS.Kelso@celestrak.com]
Last updated: 2017 January 26 01:57:51 UTC
Current system time: 2018 June 19 23:34:15 UTC