88611 Teharonhiawako

88611 Teharonhiawako
Hubble Space Telescope image of Teharonhiawako and its companion Sawiskera, taken in 2010
Discovery
Discovered byDeep Ecliptic Survey
Discovery date20 August 2001
Designations
(88611) Teharonhiawako
PronunciationMohawk: [d̥ɛhaɺũhjáːɰaɡo]
2001 QT297
TNO · cubewano[1]
cold[2]
Orbital characteristics [3]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc4463 days (12.22 yr)
Aphelion45.235 AU (6.7671 Tm)
Perihelion42.454 AU (6.3510 Tm)
43.845 AU (6.5591 Tm)
Eccentricity0.031712
290.32 yr (106041 d)
158.44°
0.0033949°/day
Inclination2.5834°
304.78°
236.43°
Known satellitesSawiskera [zaɰískɛɺa]
Physical characteristics
220+41
−44 km (combined)
178+33
−36 km (primary)
129+24
−26 km (secondary)[4]
Mass2.445×1018 kg[5]
Mean density
1.15+0.87
−0.91 g/cm3[4]
4.7526±0.0007 h[6]
0.145+0.086
−0.045[4]
6.00±0.13[6]
5.8[3]

88611 Teharonhiawako (provisional designation 2001 QT197) is a trans-Neptunian object and a member of the cold classical Kuiper belt, measuring about 220 km in diameter. It is a binary object, with a large companion named Sawiskera (formally designated (88611) Teharonhiawako I Sawiskera), which at 126 km in diameter is about two-thirds the size of its primary.[7] The two components together are known as the Teharonhiawako–Sawiskera binary system.

  1. ^ Cite error: The named reference Buie was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Brown2013 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference jpldata was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference TNOsCool-10 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Grundy2011 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference TNOsCool-6 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Teharonhiawako was invoked but never defined (see the help page).