(119070) 2001 KP77
| Discovery | |
|---|---|
| Discovered by | Marc W. Buie |
| Discovery date | 23 May 2001 |
| Designations | |
| TNO 4:7 resonance[1] | |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 1449 days (3.97 yr) |
| Aphelion | 51.535 AU (7.7095 Tm) |
| Perihelion | 35.989 AU (5.3839 Tm) |
| 43.762 AU (6.5467 Tm) | |
| Eccentricity | 0.17762 |
| 289.51 yr (105742 d) | |
Average orbital speed | 4.45 km/s |
| 18.078° | |
| 0° 0m 12.256s / day | |
| Inclination | 3.3124° |
| 21.910° | |
| 217.640° | |
| Earth MOID | 34.9768 AU (5.23245 Tm) |
| Jupiter MOID | 30.6123 AU (4.57953 Tm) |
| Physical characteristics | |
| Dimensions | 110–240 km?[3] |
| Mass | 1.4-14×1018 kg? |
Equatorial surface gravity | 0.03-0.07? m/s² |
Equatorial escape velocity | 0.06-0.13? km/s |
| 0.10? | |
| Temperature | ~42 K |
| (Red; highest TNO B−V) 1.544 (B−V); 0.61 (V-R) | |
| 7.0 | |
(119070) 2001 KP77 (also written (119070) 2001 KP77) is a 4:7 resonant[1] trans-Neptunian object (TNO) located in the Kuiper belt. It was discovered on May 23, 2001, by Marc W. Buie at Cerro Tololo.
Color
2001 KP77 has the highest, and thus reddest measured B−V color index of any TNO. On April 19, 2002, 2001 KP77 set a TNO record B−V of 1.544. In the visible spectrum 2001 KP77 would appear an orange-brown depending on its albedo.[citation needed]
Size
Based on an absolute magnitude (H) of 6.93, 2001 KP77 is estimated to be between 110 – 240 km in diameter.[4]
References
- ^ a b Marc W. Buie (2005-05-11). "Orbit Fit and Astrometric record for 119070". SwRI (Space Science Department). Retrieved 2008-09-19.
- ^ "JPL Small-Body Database Browser: 119070 (2001 KP77)". NASA/Jet Propulsion Laboratory. Retrieved 7 April 2016.
- ^ H
- ^ Conversion of Absolute Magnitude to Diameter Archived June 25, 2007, at WebCite
External links
- 4:7 Resonance, Johnston's Archive
- TNO Colors
- KBO Surface Colors
- (119070) 2001 KP77 at the JPL Small-Body Database
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