2478 Tokai

2478 Tokai
Discovery [1]
Discovered byT. Furuta
Discovery siteTōkai Obs. (879)
Discovery date4 May 1981
Designations
(2478) Tokai
Pronunciation/ˈtoʊkaɪ/
Japanese: [toːkai]
Named after
Tōkai (Japanese city)[2]
1981 JC · 1931 HH
1932 SE · 1934 ED
1939 VH · 1951 JP
1955 OE · 1955 QV
1957 BD · 1972 RS
1978 NU2 · 1979 XR
1981 JT
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc84.68 yr (30,929 days)
Aphelion2.3781 AU
Perihelion2.0740 AU
2.2261 AU
Eccentricity0.0683
3.32 yr (1,213 days)
103.28°
0° 17m 48.48s / day
Inclination4.1389°
228.80°
233.85°
Known satellites1[3][4][5]
Physical characteristics
Dimensions9.238±0.112 km[6]
9.36±1.51 km[7]
9.71±0.49 km[8]
9.982±0.031 km[9]
10.087 km[10]
10.09 km (taken)[3]
25.88±0.01 h[a]
25.885±0.007 h[11]
25.8913 h[b]
25.97±0.11 h[12]
0.144±0.015[8]
0.1957[10]
0.2084±0.0371[9]
0.252±0.045[6]
0.33±0.20[7]
SMASS = S [1] · S [3]
11.88±0.03 (R)[b] · 12.00[7] · 12.15±0.04[13] · 12.2[1] · 12.33[9] · 12.37±0.058[3][10] · 12.80[8]

2478 Tokai, provisionally designated 1981 JC, is a stony Florian asteroid and binary system from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 4 May 1981, by Japanese astronomer Toshimasa Furuta at Tōkai Observatory (879), Japan.[14] The asteroid was named after the city of Tōkai.[2]

  1. ^ a b c d Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference CBET824 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference johnstonsarchive was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference Pravec-2012b was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Higgins-2007b was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Oey-2016a was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference MPC-Tokai was invoked but never defined (see the help page).


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