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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 31 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .202719057734264 | 3.9549e-08 | |
| a | 2.654819483070606 | 9.6666e-09 | au |
| q | 2.116636979007966 | 1.0653e-07 | au |
| i | 12.24197684351864 | 3.0348e-06 | deg |
| node | 120.4827317059011 | 1.8955e-05 | deg |
| peri | 76.3376790984689 | 2.0246e-05 | deg |
| M | 5.631941795319863 | 7.5601e-06 | deg |
| tp | 2459371.782384159344
(2021-Jun-06.28238416) | 3.3161e-05 | TDB |
| period | 1579.977568310587
4.33 | 8.6294e-06
2.363e-08 | d
yr |
| n | .2278513361331675 | 1.2445e-09 | deg/d |
| Q | 3.193001987133244 | 1.1626e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.79 |
|
n/a |
MPCxxxxx |
|
| diameter |
diameter |
4.684 |
km |
0.998 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.292 |
|
0.204 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 30840 Jackalice | Discovered 1991 Apr. 15 by C. S. Shoemaker and D. H. Levy at Palomar. |
| Jack Newton (b. 1942) is a Canadian astrophotographer credited with some of the most famous ground-based photographs ever taken. His work, from the sun to a gravitational lens, has appeared in major news magazines. His wife Alice has long assisted him in every one of his outreach efforts, in both Canada and the U.S. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20050919/MPCPages.arc | Last Updated: 2005-09-26 |
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