66391 Moshup

66391 Moshup
Moshup and its satellite Squannit imaged by the Very Large Telescope's SPHERE instrument[1]
Discovery [2]
Discovered byLINEAR
Discovery siteLincoln Lab's ETS
Discovery date20 May 1999
Designations
Pronunciation/ˈmɒʃʌp/
Named after
Maushop
(native American legend)
1999 KW4
Aten · NEO · PHA [2][3]
Mercury-crosser
Venus-crosser
Orbital characteristics [2]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc19.01 yr (6,942 days)
Aphelion1.0845 AU
Perihelion0.2000 AU
0.6422 AU
Eccentricity0.6886
0.51 yr (188 days)
359.03°
1° 54m 54s / day
Inclination38.884°
244.91°
192.62°
Known satellites1 (Squannit /ˈskwɒnɪt/)
Earth MOID0.0138 AU · 5.4 LD
Physical characteristics
Dimensions1.532 × 1.495 × 1.347 km[4]
1.317±0.040 km[4]
Mass(2.49±0.054)×1012 kg[4]
Mean density
1.97±0.24 g/cm3[4]
2.7650 h[5]
0.26 (derived)[6]
SMASS = S[2][6]
V–I=0.85±0.01[7]
V–R=0.44±0.02[7]
V–I=0.65±0.03[7]
16.5[2][6]

66391 Moshup /ˈmɒʃʌp/, provisional designation 1999 KW4, is a binary asteroid, classified as a near-Earth object and potentially hazardous asteroid of the Aten group, approximately 1.3 kilometers in diameter. It was discovered on 20 May 1999, by Lincoln Near-Earth Asteroid Research (LINEAR) at the Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, United States.[3] It is a Mercury-crosser that comes extremely close to the Sun at a perihelion of 0.2 AU.

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  2. ^ a b c d e Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference Ostro-2006 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Pravec-2006 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference lcdb was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Carbognani2019 was invoked but never defined (see the help page).