NORAD Two-Line Element Set Format
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Data for each satellite consists of three lines in the following format:

AAAAAAAAAAAAAAAAAAAAAAAA
1 NNNNNU NNNNNAAA NNNNN.NNNNNNNN +.NNNNNNNN +NNNNN-N +NNNNN-N N NNNNN
2 NNNNN NNN.NNNN NNN.NNNN NNNNNNN NNN.NNNN NNN.NNNN NN.NNNNNNNNNNNNNN

For example:

HUBBLE
1 20580U 90037B   99272.06768183  .00002365  00000-0  23382-3 0 02374
2 20580 028.4670 111.0359 0013971 225.3844 134.5606 14.88312749317309

Line 0 is a twenty-four character name (to be consistent with the name
length in the NORAD SATCAT).

Lines 1 and 2 are the standard Two-Line Orbital Element Set Format
identical to that used by NORAD and NASA.  The format description is
as follows:

Line 1:

Column		Description
------		-----------
01		Line Number of Element Data
03-07		Satellite Number
08		Classification (U=Unclassified)
10-11		International Designator (Last two digits of launch year)
12-14		International Designator (Launch number of the year)
15-17		International Designator (Piece of the launch)
19-20		Epoch Year (Last two digits of year)
21-32		Epoch (Day of the year and fractional portion of the day)
34-43		First Time Derivative of the Mean Motion
45-52		Second Time Derivative of Mean Motion (decimal point assumed)
54-61		BSTAR drag term (decimal point assumed)
63		Ephemeris type
65-68		Element number
69		Checksum (modulo 10)
		(Letters, blanks, periods, plus signs=0; minus signs=1)

Line 2:

Column		Description
------		-----------
01		Line Number of Element Data
03-07		Satellite Number
09-16		Inclination (degrees)
18-25		Right Ascension of the Ascending Node (degrees)
27-33		Eccentricity (decimal point assumed)
35-42		Argument of Perigee (degrees)
44-51		Mean Anomaly (degrees)
53-63		Mean Motion (perigees per day)
64-68		Revolution number at epoch (revs)
69		Checksum (modulo 10)

All other columns are blank or fixed.