Two-line element set: Difference between revisions

Revision as of 18:39, 17 September 2021

Revision as of 18:43, 17 September 2021

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The meaning of this data is as follows:<ref>{{cite web|url=https://www.space-track.org/documentation#/tle|title=Space Track|publisher=Space-track.org|access-date=28 November 2014}}</ref>

;===Title line===

[[File:Tle title.jpg|top|TLE title]]

{| class="wikitable"

Line 43 ⟶ 44:

|}

;===Line 1===

[[File:Tle first row.jpg|top|TLE first row]]

{| class="wikitable"

Line 56 ⟶ 57:

||2||03–07||[[Satellite Catalog Number|Satellite catalog number]]||25544

|-

||3||08–08||Classification (U=Unclassified: unclassified, C=Classified: classified, S=Secret: secret) <ref>{{Cite web|url=https://ai-solutions.com/_help_Files/two-line_element_set_file.htm|title=Norad Two-Line Orbital Element Set File|website=ai-solutions.com|access-date=2019-09-03}}</ref>||U

|-

||4||10–11||[[International Designator]] (last two digits of launch year)||98

Line 82 ⟶ 83:

|}

;===Line 2:===

[[File:Tle second row.jpg|top|TLE second row]]

{| class="wikitable"

|-

! Field

! Columns

Line 112 ⟶ 113:

|}

Where decimal points are assumed, they are leading decimal points. The last two symbols in Fields 10 and 11 of the first line give powers of 10 to apply to the preceding decimal. Thus, for example, Field 11 (-11606-4) translates to -0−0.11606E-411606E−4 (−0.11606×10⁻⁴).

The checksums for each line are calculated by adding all numerical digits on that line, including the line number. One is added to the checksum for each negative sign (-) on that line. All other non-digit characters are ignored.