Jonathan's Space Report

Introduction
Definitions and Conventions
II: Organizations Database
- Orgs File: Text and TSV
III: Launch Origins Database
- Sites File: Text and TSV
- Launch Points File: Text and TSV
IV: Launch Platforms
- Platforms File: Text and TSV
V: Launch Vehicles
- Families
  - Data File: Text and TSV
- Launch Vehicle List
  - Data File: Text and TSV
- LV Stages
  - Data File: Text and TSV
- Stages
  - Data File: Text and TSV
- Engines
  - Data File: Text and TSV
VI: Launch Lists
- Launch Time References File: Text and TSV
- Launch List Column Descriptions
- Data: By family and (TSV)
- Data: By designation
- Data: Full list (TSV)
- Data: By family (tar.gz) Supporting files (tar.gz)
- Launch Count Totals
VII: Worlds in the Solar System
- Worlds file column descriptions
- Spin file column descriptions
- Worlds data: Text and TSV
- Spin data: Text and TSV
VIII: Object Catalogs
- Documentation
- Main catalogs
  - satcat (Standard) Text and TSV
  - auxcat (Auxiliary) Text and TSV
  - ftocat (Failed to orbit) Text and TSV
- Temporary catalogs
  - tmpcat (Temporary) Text and TSV
  - csocat (Complementary) Text and TSV
- Supporting catalogs
  - lcat (Endoatmospheric/Low) Text and TSV
  - rcat (Suborbital/Rockets) Text and TSV
- Event catalogs
  - ecat (Events) Text and TSV
  - deepcat (Deep Space) Text and TSV
  - deepcat to satcat/auxcat crossindex Text and TSV
  - hcocat (Heliocentric Register) Text and TSV
  - lprcat (Lunar and Planetary Register) Text and TSV
  - landercat (Lunar and Planetary landings and impacts) Docs,, Data: Text and TSV
- Payload catalogs
  - psatcat (Standard, Payloads) Text and TSV
  - pauxcat (Auxiliary, Payloads) Text and TSV
  - pftocat (Failed to orbit, Payloads) Text and TSV
  - ptmpcat (Temporary, Payloads) Text and TSV
  - plcat (Low, Payloads) Text and TSV
  - prcat (Suborb, Payloads) Text and TSV
  - pdeepcat (Deep, Payloads) Text and TSV
- usatcat (List of Unicode satellite names) Text and TSV
- Derived catalogs
  - Current Catalog (Summary of current space object catalog): Column descriptions; Data (Text) and Data (TSV)
  - Orbital Launch Log (orbital launches and payloads) - Column descriptions; Data (Text) and Data (TSV)
  - Geosync Catalog - Column descriptions; Data (Text) and Data (TSV)
  - Active Catalog - Column descriptions; Data (Text) and Data (TSV)
- All catalogs (tar.gz)
Acknowledgements

GCAT Release 1.7.3 (2025 Apr 16) | Data Update 2025 May 24

Geostationary Orbit Catalog Column Descriptions

The GEO catalog lists objects in or near geosynchronous orbit.

Objects are entered in the GEO catalog if at any time in their careers their orbital period is in the near-geosynchronous ring (NGEO) between 23 hours (1380 min) and 25 hours (1500 min).

The file gives latest available orbital information. Fields are:

(1) JCAT - NORAD number
(2) Piece - COSPAR designation
(3) Name
(4) LDate - Launch date UTC
(5) GDate - Date entering NGEO region
(6) ODate - Date and time (UTC) epoch of orbital data
(7) Period - Orbital period in min
(8) Perigee in km
(9) Apogee in km
(10) Inc - Inclination to equator of date, deg
(11) OType - Orbit type see orbits.html for definitions
(12) Longitude - Approximate longitude at epoch
(13) Drift Rate - Approximate longitude drift rate, direction in degrees per day
(14) TDate: Estimated end-of-life date, or date permanently leaving extended NGE
(15) T: Object type: P = payload, R = rocket stage, C = component, D = debris
(16) Flag (not currently documented)

Note that an object may be in the list because its orbit code was transiently one of the GEO/ ones for a early phase of the mission - an example is the CAPSTONE probe.

GCAT: General Catalog of Artificial Space Objects

Jonathan C. McDowell

Object Catalogs

Geostationary Orbit Catalog Column Descriptions