* Astronomy

This simple two line ELSET code can be used to describe the orbit of a satellite.

Example:

ISS
1 25544U 98067A   08073.77889163  .00028385  00000-0  17915-3 0  1070
2 25544 051.6371 148.2068 0001310 244.5695 215.1945 15.76395734533473

Sat Name
1 AAAAAU 00  0  0 BBBBB.BBBBBBBB  .CCCCCCCC  00000-0  00000-0 0  DDDZ
2 AAAAA EEE.EEEE FFF.FFFF GGGGGGG HHH.HHHH III.IIII JJ.JJJJJJJJKKKKKZ

Simplified KEY:
A-Catalogue Number
B-Epoch Time
C-Decay
D-Element Set Number
E-Inclination
F-Right Ascension of the Ascending Node
G-Eccentricity
H-Argument of Perigee
I-Mean Anomaly [Degrees]
J-Mean Motion [Revs per day]
K-Orbit Number
Z-Checksum (Letters, blanks, periods = 0; minus sign = 1)

A more detailed breakdown of the 2 line elements can be read here....
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