TLE

NASA 2-Line Elements Format


  ---------------------------------------------------------------------
  RAX-2
  1 37853U 11061D   12330.34810943  .00009178  00000-0  70988-3 0  3518
  2 37853 101.7043  84.0162 0242319 250.8589 106.6233 14.81529917 58240
  ---------------------------------------------------------------------

  DECODE 2-LINE ELSETS WITH THE FOLLOWING KEY:
  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

  KEY: A-catalognum B-epochtime C-decay D-elsetnum E-inclination F-raan
  G-eccentricity H-argperigee I-mnanom J-mnmotion K-orbitnum Z-checksum

  Line 1 is  Satellite Name

  Line 2
  Column     Description
  01-01     Line Number of Element Data ...(1)
  03-07     Satellite Number ...(37853)
  10-11     International Designator (Last two digits of launch year) ...(11)
  12-14     International Designator (Launch number of the year) ...(61)
  15-17     International Designator (Piece of launch) ...(D)
  19-20     Epoch Year (Last two digits of year) ...(12)
  21-32     Epoch (Day number and fractional portion of the day) ...(330.34810943)
  34-43     First Time Derivative of the Mean Motion divided by 2.
         or Ballistic Coefficient (Depending of ephemeris type)
  45-52     Second Time Derivative of Mean Motion divided by 6. (Blank if N/A)
  54-61     BSTAR drag term if GP4 general perturbation theory was used.
            Otherwise, radiation pressure coefficient.
  63-63     Ephemeris type
  65-68     Element number ...(351)
  69-69     Check Sum (Modulo 10) ...(8)

  Line 3
  Column     Description
  01-01     Line Number of Element Data
  03-07     Satellite Number ...(37853)
  09-16     Inclination [Degrees] ...(101.7043)
  18-25     Right Ascension of the Ascending Node [Degrees] ...(84.0162)
  27-33     Eccentricity (decimal point assumed) ...(0.0242319)
  35-42     Argument of Perigee [Degrees] ...(250.8589)
  44-51     Mean Anomaly [Degrees] ...(106.6233)
  53-63     Mean Motion [Revs per day] ...(14.81529917)
  64-68     Revolution number at epoch [Revs] ...(5824)
  69-69     Check Sum (Modulo 10) ...(0)

  http://www.jamsat.or.jp/keps/
  http://www.amsat.org/amsat/keps/
  http://homepage1.nifty.com/aida/jr1huo_calsat32/Calsat32Elem.htm


[Supplement] TLE available

NORAD Last 30 Days' Launches
  http://www.celestrak.com/NORAD/elements/tle-new.txt
NORAD CubeSats
  http://www.celestrak.com/NORAD/elements/cubesat.txt
NORAD Amateur Radio
  http://www.celestrak.com/NORAD/elements/amateur.txt
NORAD NOAA
  http://www.celestrak.com/NORAD/elements/weather.txt
Space-Track (password required)
  https://www.space-track.org/perl/login.pl
CalPoly Education
  http://mstl.atl.calpoly.edu/~ops/keps/kepler.txt
OOREOS
  http://ooreos.engr.scu.edu/dashboard.htm
MCubed2
  http://gs.engin.umich.edu/predictions/mxl.txt
FIREBIRD-U1
  http://mstl.atl.calpoly.edu/~ops/gemsat_tle/39463-FIREBIRD-A.txt
FIREBIRD-U2
  http://mstl.atl.calpoly.edu/~ops/gemsat_tle/39464-FIREBIRD-B.txt