Back (66391) 1999 KW4 Arabic (66391) 1999 KW4 (كويكب) ARZ (66391) 1999 KW4 Welsh (66391) Moshup German 66391 Μόσαπ Greek 66391 Moshup Esperanto (66391) Moshup French (66391) 1999 KW4 ID 66391 Moshup Italian (66391) 1999 KW4 Japanese

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.

  1. ^ Cite error: The named reference eso1910 was invoked but never defined (see the help page).
  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).

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