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Manual entry of ECHO Keps



I have gotten some requests about entering keps in various tracking that
don't like the checksum

Since this is only one satellite, it is often quicker to just add a new
satellite, open two windows and
cut & paste the values  OR just enter the numbers by hand.

Being one that prefers to teach people to fish rather then give them the
fish, here is a breakdown of how
the 2 lineelements are converted.

I enter them into Nova and InstantTrack by hand in just a minute or so.

AMSAT ECHO
1 99999U          04181.28142431  .00000000  00000-0 +46367-8 0 00011
2 99999 098.2611 250.8899 0012045 291.5617 245.3334 14.42768316000013

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

Sat name  AMSAT ECHO
Catalog number  9999
Epoch time  04 181.28142431
element set  1
Inclination  098.2611
RAAN  250.8899
Eccentricity 0.0012045
Arg of perigee  291.5617
Mean Anomaly  245.3334
Mean Motion  14.42768316
Decay rate  0.0
Orbit   1

Regards,
Gould


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