66652 Borasisi

66652 Borasisi
Borasisi and its companion Pabu imaged by the Hubble Space Telescope in 2003
Discovery
Discovered byA. Trujillo, J. Luu and D. Jewitt
Discovery date8 September 1999
Designations
(66652) Borasisi
Pronunciation/bɒrəˈsiːsi/
1999 RZ253
trans-Neptunian object
cubewano[1][2]
SCATNEAR(?)[3]
Orbital characteristics[4]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc4790 days (13.11 yr)
Aphelion47.291 AU (7.0746 Tm)
Perihelion39.819 AU (5.9568 Tm)
43.555 AU (6.5157 Tm)
Eccentricity0.085781
287.45 yr (104991 d)
60.025°
0.0034289°/day
Inclination0.56319°
84.722°
194.98°
Known satellitesPabu /ˈpɑːbuː/
(137 km in diameter?)[5]
Physical characteristics
163+33
−66 km (combined)
126+25
−51 km (primary)
105+20
−42 km (secondary)[6]
Mass(3.433±0.027)×1018 kg[7]
Mean density
2.1+2.6
−1.2 g/cm3[6]
6.4±1.0 h[6]
0.236+0.438
−0.77[6]
V−R= 0.646 ± 0.058[6]
6.121 ± 0.070,[6] 5.9[4]

66652 Borasisi, or as a binary (66652) Borasisi-Pabu,[7] is a binary classical Kuiper belt object. It was discovered in September 1999 by Chad Trujillo, Jane X. Luu and David C. Jewitt[4] and identified as a binary in 2003 by K. Noll and colleagues[4] using the Hubble Space Telescope.

  1. ^ "MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT)". IAU Minor Planet Center. 4 September 2009. Retrieved 4 October 2009.
  2. ^ (66652) Borasisi = 1999 RZ253 Orbit
  3. ^ Marc W. Buie. "Orbit Fit and Astrometric record for 66652" (using 47 observations, last obs 2012-10-18). SwRI (Space Science Department). Retrieved 4 October 2009.
  4. ^ a b c d "JPL Small-Body Database Browser: 66652 Borasisi (1999 RZ253)". Retrieved 25 March 2016.
  5. ^ Wm. Robert Johnston (25 November 2008). "(66652) Borasisi". Johnston's Archive. Retrieved 6 October 2009.
  6. ^ a b c d e f Cite error: The named reference TNOsCool-10 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Grundy2011 was invoked but never defined (see the help page).