C/1969 T1 (Tago–Sato–Kosaka)
< C
Comet Tago–Sato–Kosaka photographed from Cerro Tololo on 30 December 1969 | |
| Discovery | |
|---|---|
| Discovered by | Akihiko Tago Yasuo Sato Kozo Kosaka |
| Discovery site | Japan |
| Discovery date | 10 October 1969 |
| Designations | |
| 1969 IX, 1969g | |
| Orbital characteristics | |
| Epoch | 21 January 1970 (JD 2440607.5) |
| Observation arc | 305 |
| Number of observations | 175 days |
| Aphelion | ~12,800 AU |
| Perihelion | 0.4726 AU |
| Semi-major axis | ~6,400 AU |
| Eccentricity | 0.99992 |
| Orbital period | ~512,000 years |
| Avg. orbital speed | 57.16 km/s |
| Max. orbital speed | 61.3 km/s |
| Inclination | 75.818° |
| 109.660° | |
| Argument of periapsis | 267.834° |
| Last perihelion | 21 December 1969 |
| TJupiter | 0.210 |
| Earth MOID | 0.0006 AU |
| Jupiter MOID | 3.4637 AU |
| Physical characteristics | |
Mean radius | 2.20±0.27 km |
| 0.63±0.13 | |
| Comet total magnitude (M1) | 6.5 |
| 3.5 (1970 apparition) | |
Comet Tago–Sato–Kosaka, formally designated as C/1969 T1, is a non-periodic comet that became visible in the naked eye between late 1969 and early 1970. It was the first comet ever observed by an artificial satellite, OAO-2.