This TLE Checksum equation computes the checksum of a line (a card) of the Two Line Element set (TLE), allowing you to verify the checksum.
You simply copy paste the entire card (one of the two lines of TLE) into the input field and the TLE Checksum equation computes the checksum integer value.
Clickfor a lits of terms and acronyms related to orbital elements, orbitology and satellites.
TLE Checksum equation computes the checksum value by performing these steps:
The TLE Checksum equation then takes modulo 10 of the total of numeric values and the 1's for the minus signs.
If you had the following TLE:
1 27831U 03028B 17074.62687020 -.00000167 +00000-0 +00000-0 0 9999
2 27831 000.0302 175.3600 0002592 186.4728 193.2334 01.00271880050427
If you pasted the first line into the input field of the TLE Checksum equation, you would get 9 as the resultant checksum.
If you pasted the second line into the input field of the TLE Checksum equation, you would get 7 as the resultant checksum.