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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .073958288059497 | 3.2175e-08 | |
| a | 2.379877143262683 | 7.7982e-09 | au |
| q | 2.203865503955048 | 7.6725e-08 | au |
| i | 7.068194943154475 | 3.2392e-06 | deg |
| node | 120.6388756564908 | 2.7586e-05 | deg |
| peri | 88.51570765459779 | 3.5686e-05 | deg |
| M | 115.0277533766761 | 2.2203e-05 | deg |
| tp | 2458968.020182166284
(2020-Apr-28.52018217) | 8.3032e-05 | TDB |
| period | 1341.004495802099
3.67 | 6.5912e-06
1.805e-08 | d
yr |
| n | .2684554758220046 | 1.3195e-09 | deg/d |
| Q | 2.555888782570316 | 8.375e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.54 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
3.292 |
km |
0.662 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
7.15446 |
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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
| geometric albedo |
albedo |
0.283 |
|
0.087 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 20593 Freilich | Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. |
| Janet Freilich (b. 1987) was awarded second place in the 2004 Intel International Science and Engineering Fair for her biochemistry project. She attends the Sir Winston Churchill Secondary School, Vancouver, British Columbia, Canada. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20041226/MPCPages.arc | Last Updated: 2004-12-25 |
|
Alternate Designations
| 1999 RM180 = 1989 YZ7 = 1998 HB110 |
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