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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 25 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .03778689888578768 | 3.2582e-08 | |
a | 2.598828719532642 | 9.8381e-09 | au |
q | 2.500627041486181 | 8.4691e-08 | au |
i | 3.061321925001087 | 4.1817e-06 | deg |
node | 181.7684643979291 | 5.9826e-05 | deg |
peri | 55.21266562081812 | 8.1574e-05 | deg |
M | 225.0616372789316 | 5.7292e-05 | deg |
tp | 2459774.085083498051 (2022-Jul-13.58508350) | 0.00024419 | TDB |
period | 1530.258896694455 4.19 | 8.6894e-06 2.379e-08 | d yr |
n | .2352543094359025 | 1.3359e-09 | deg/d |
Q | 2.697030397579104 | 1.021e-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 |
14.8 |
|
n/a |
MPO350895 |
|
diameter |
diameter |
2.804 |
km |
0.411 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
geometric albedo |
albedo |
0.356 |
|
0.274 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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|
11769 Alfredjoy | Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. |
Alfred H. Joy (1882-1973) was an astronomer at the Mount Wilson Observatory from 1915 to 1973 who measured spectroscopic parallaxes and radial velocities of stars and studied variable stars. He invented the T Tauri classification. |
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
Reference: 20071124/MPCPages.arc | Last Updated: 2007-11-26 |
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