| Code | Name | T | i | e | hp | ha |
|---|---|---|---|---|---|---|
| Period/hr | inclination/deg | eccentricity | perigee ht/km | apogee ht/km | ||
| ATM | Atmospheric | N/A | 0.0 - 180.0 | 0.0 - 1.0 | <80 | 0 - 80 |
| TA | Trans-Atm. | N/A | 0.0 - 180.0 | 0.0 - 1.0 | 0-80 | >80 |
| SO | Suborbital | N/A | 0.0 - 180.0 | 0.0 - 1.0 | <0 | >80 |
| LEO/E | Equatorial | 1:26 - 2:00 | 0.0 - 25.0 | 0.0 - 0.21 | 80 - 1682 | 80 - 3284 |
| LEO/I | Intermediate | 1:26 - 2:00 | 2.0 - 85.0 | 0.0 - 0.21 | 80 - 1682 | 80 - 3284 |
| LEO/P | Polar | 1:26 - 2:00 | 85.0 - 95.0 | 0.0 - 0.21 | 80 - 1682 | 80 - 3284 |
| LEO/S | Sun-Synch | 1:26 - 2:00 | 95.0 - 104.0 | 0.0 - 0.21 | 80 - 1682 | 80 - 3284 |
| LEO/R | Retrograde | 1:26 - 2:00 | 104.0 - 180.0 | 0.0 - 0.21 | 80 - 1682 | 80 - 3284 |
| MEO | Medium | 2:00 - 23:00 | 0.0 - 180.0 | 0.0 - 0.50 | 80 - 34680 | 1682 - 55209 |
| HEO | Highly Ellip | 4:03 - 23:00 | 0.0 - 180.0 | 0.50 - 0.92 | 80 - 14331 | 13000 - 69280 |
| HEO/M | Molniya | 11:30 - 12:30 | 62.0 - 64.0 | 0.50 - 0.77 | 80 - 7294 | 19489 - 41854 |
| GTO | GEO Transfer | 10:00 - 12:30 | 0.0 - 85.0 | 0.50 - 0.77 | ||
| GEO/S | Stationary | 23:55.5-23:56.5 | 0.0 - 3.0 | 0.00 - 0.01 | 35353 - 35795 | 35775 - 36217 |
| GEO/I | Inclined GEO | 23:55.5-23:56.5 | 3.0 - 25.0 | 0.00 - 0.05 | 33667 - 35795 | 35775 - 37903 |
| GEO/T | Synchronous | 23:55.5-23:56.5 | 0.0 - 180.0 | 0.00 - 0.85 | 80 - 35795 | 35775 - 71510 |
| GEO/D | Drift GEO | 23:00 - 25:00 | 0.0 - 3.0 | 0.00 - 0.05 | 32628 - 37028 | 34681 - 39198 |
| GEO/SI | Inclined GEO | 23:55.5-23:56.5 | 3.0 - 25.0 | 0.00 - 0.05 | 33667 - 35795 | 35775 - 37903 |
| GEO/ID | Inclined Drift | 23:41 - 24:11 | 3.0 - 25.0 | 0.00 - 0.05 | 32628 - 37028 | 34681 - 39198 |
| GEO/NS | Near-synch | 23:00 - 25:00 | 0.0 - 180.0 | 0.0 - 0.85 | 80 - 37028 | 34681 - 73976 |
| VHEO | Very High Earth Orbit | > 25:00 | 0.0 - 180.0 | 0.0 - 1.00 | ||
| DSO | Deep Space Orbit | >145688 | ||||
| CLO | Cislunar | 0.0 - 180.0 | 0.0 - 1.00 | >318200 | ||
| EEO | Earth Escape | |||||
| HCO | Heliocentric | |||||
| PCO | Planetocentric | |||||
| SSE | Solar System Escape | |||||
(In earlier pre-releases of my orbit database, different orbit categories were used. In particular, VHEO was called 'deep' or 'distant' space and divided into DSO and DHEO; I now reserve the term 'deep space' for space beyond the Earth-Moon 1:4 resonance.)