(119070) 2001 KP77
(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.
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 | |
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.
Size
Based on an absolute magnitude (H) of 6.93, 2001 KP77 is estimated to be between 110 – 240 km in diameter.[4]
References
- Marc W. Buie (2005-05-11). "Orbit Fit and Astrometric record for 119070". SwRI (Space Science Department). Archived from the original on 2010-08-08. 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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