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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1507526826726128 | 3.4875e-08 | |
| a | 3.129382996126182 | 1.7478e-08 | au |
| q | 2.657620114350101 | 1.0782e-07 | au |
| i | 1.169394181268193 | 4.4653e-06 | deg |
| node | 47.31841314825858 | 0.0002016 | deg |
| peri | 34.74199027490858 | 0.00020217 | deg |
| M | 233.2046134539632 | 1.732e-05 | deg |
| tp | 2459712.676199602810
(2022-May-13.17619960) | 9.9276e-05 | TDB |
| period | 2022.024924100249
5.54 | 1.694e-05
4.638e-08 | d
yr |
| n | .1780393484319641 | 1.4916e-09 | deg/d |
| Q | 3.601145877902263 | 2.0113e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.0 |
|
n/a |
MPO347535 |
|
| diameter |
diameter |
23.166 |
km |
0.279 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
12.532 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] |
| geometric albedo |
albedo |
0.057 |
|
0.008 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
|
| 2153 Akiyama | Discovered 1978 Dec. 1 at the Harvard College Observatory, Agassiz Station. |
| Named in memory of Kaoru Akiyama (1901-1970), professor at Hosei Univer sity, Tokyo, during 1930-1940 and 1949-1970, well known for his work on minor planets. Initially in collaboration with K. Hirayama, he made the first de tailed study of the orbit of the 3/2 commensurability object (153) Hilda. Name proposed by K. Tomita. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC 5014 | Last Updated: 2006-03-21 |
|
[ show close-approach data ]
Alternate Designations
| 1978 XD = 1955 UQ1 = 1972 YA = 1973 AK3 = 1977 VW = 1979 FS |
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