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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .2028754905615208 | 3.9776e-08 | |
a | 2.655320404776088 | 1.014e-08 | au |
q | 2.116620975059123 | 1.0696e-07 | au |
i | 12.24205560925029 | 3.1763e-06 | deg |
node | 120.4834675663562 | 1.9528e-05 | deg |
peri | 76.33270567828231 | 2.088e-05 | deg |
M | 320.9881871355474 | 8.4049e-06 | deg |
tp | 2459371.764542044260 (2021-Jun-06.26454204) | 3.7136e-05 | TDB |
period | 1580.424763908208 4.33 | 9.0531e-06 2.479e-08 | d yr |
n | .2277868635200082 | 1.3048e-09 | deg/d |
Q | 3.194019834493053 | 1.2197e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
13.78 |
|
n/a |
E2021B10 |
|
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) |
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|
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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