NORAD Tracking
27-33 Eccentricity (decimal point assumed)
35-42 Argument of Perigee [Degrees]
44-51 Mean Anomaly [Degrees]
53-63 Mean Motion [Revs per day]
64-68 Revolution number at epoch [Revs]
69 Checksum (Modulo 10)
All other columns are blank or fixed.
Example:
NOAA 14
1 23455U 94089A 97320.90946019 .00000140 00000-0 10191-3 0 2621
2 23455 99.0090 272.6745 0008546 223.1686 136.8816 14.11711747148495
The epoch defines the time to which all of the time-varying fields in the element
set are referenced.
The format of the epoch is best expelled with an example:
An epoch of 98001.00000000 corresponds to 0000 UT on 1998 January 01—in
other words, midnight between 1997 December 31 and 1998 January 01. An
epoch of 98000.00000000 would actually correspond to the beginning of 1997
December 31—strange as that might seem. Note that the epoch day starts at UT
midnight (not noon) and that all times are measured mean solar rather than sidereal
time units.
The 2-line element data can be entered into the 7200 ACU by use of the front
panel or the M&C system. For most users the M&C is the best and most efficient
way to setup and maintain NORAD targets. It is possible to build a NORAD target
at the front panel. The 7200 ACU is not capable of receiving the NORAD TLE
information directly, so the user is responsible to select the correct information
from the TLE sets and place it into the parameters listed below.
From the "Main menu..."
The user selects: "Tracking Functions...", "Edit a new or existing target..."
Then select the target number and set tracking mode to "NORAD (2-line
elements)".
Enter "Edit target parameters..."
K-3
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