(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.

(119070) 2001 KP77
Discovery
Discovered byMarc W. Buie
Discovery date23 May 2001
Designations
TNO
4:7 resonance[1]
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 4
Observation arc1449 days (3.97 yr)
Aphelion51.535 AU (7.7095 Tm)
Perihelion35.989 AU (5.3839 Tm)
43.762 AU (6.5467 Tm)
Eccentricity0.17762
289.51 yr (105742 d)
4.45 km/s
18.078°
0° 0m 12.256s / day
Inclination3.3124°
21.910°
217.640°
Earth MOID34.9768 AU (5.23245 Tm)
Jupiter MOID30.6123 AU (4.57953 Tm)
Physical characteristics
Dimensions110–240 km?[3]
Mass1.4-14×1018 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
    1. 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.
    2. "JPL Small-Body Database Browser: 119070 (2001 KP77)". NASA/Jet Propulsion Laboratory. Retrieved 7 April 2016.
    3. H
    4. Conversion of Absolute Magnitude to Diameter Archived June 25, 2007, at WebCite


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