[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3138523544499339 | 2.2491e-08 | |
| a | 2.642803412183615 | 7.7514e-09 | au |
| q | 1.813353338921468 | 5.8728e-08 | au |
| i | 11.04957610807297 | 9.7126e-07 | deg |
| node | 327.7363778025556 | 4.7095e-06 | deg |
| peri | 51.00105439450465 | 6.0627e-06 | deg |
| M | 157.3589002464145 | 3.3994e-06 | deg |
| tp | 2458514.562531817663
(2019-Jan-31.06253182) | 1.2602e-05 | TDB |
| period | 1569.262927987881
4.30 | 6.904e-06
1.89e-08 | d
yr |
| n | .229407063392235 | 1.0093e-09 | deg/d |
| Q | 3.472253485445762 | 1.0184e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.45 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
6.279 |
km |
0.132 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
11.69 |
h |
n/a |
LCDB (Rev. 2020-October); 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:
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.196 |
|
0.035 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
|
| 4652 Iannini | Discovered 1975 Aug. 30 at the Felix Aguilar Observatory, El Leoncito. |
| Named in honor of Gualberto Mario Iannini (b. 1917), Argentinean astronomer who has worked in the field of astrometry for almost 40 years. As a student, Iannini studied the orbit of C/1942 C1 (Whipple-Bernasconi-Kulin). In 1962 he joined the faculty of the School of Mathematics, Astronomy and Physics of the National University of Cordoba and became head of the Department of Astrometry of the Cordoba Observatory, where he finished the reduction of the meridian circle catalogue of the Southern Polar Cap, known as the Cordoba E catalogue. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 19990202/MPCPages.arc | Last Updated: 2010-06-11 |
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