(15820) 1994 TB
(15820) 1994 TB is a trans-Neptunian object residing in the Kuiper belt. It is in a 3:2 orbital resonance with Neptune, similar to Pluto. It was discovered on October 2, 1994, by David C. Jewitt and Jun Chen at the Mauna Kea Observatory, in Hawaii.
| Discovery | |
|---|---|
| Discovered by | D. C. Jewitt and J. Chen |
| Discovery date | 2 October 1994 |
| Designations | |
| (15820) 1994 TB | |
| none | |
| TNO (plutino) | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 5210 days (14.26 yr) |
| Aphelion | 51.81015 AU (7.750688 Tm) |
| Perihelion | 26.95788 AU (4.032841 Tm) |
| 39.38402 AU (5.891766 Tm) | |
| Eccentricity | 0.31551 |
| 247.17 yr (90277.3 d) | |
Average orbital speed | 4.63 km/s |
| 355.418° | |
| 0° 0m 14.356s / day | |
| Inclination | 12.1390° |
| 317.481° | |
| 99.2670° | |
| Earth MOID | 25.9914 AU (3.88826 Tm) |
| Jupiter MOID | 22.0897 AU (3.30457 Tm) |
| TJupiter | 5.237 |
| Physical characteristics | |
| Dimensions | 167 km[2] |
| Mass | 4.9×1018? kg |
Mean density | 2.0? g/cm³ |
Equatorial surface gravity | 0.0467? m/s² |
Equatorial escape velocity | 0.0883? km/s |
| 6.5 h (0.27 d) | |
Sidereal rotation period | ? d |
| 0.10? | |
| Temperature | ~44 K |
| ? | |
| 7.3 | |
References
- "15820 (1994 TB)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 8 April 2016.
- List of known trans-Neptunian objects
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