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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 22 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .0964621203793895 | 4.5297e-08 | |
| a | 2.391184273014653 | 1.0031e-08 | au |
| q | 2.160525567821811 | 1.0879e-07 | au |
| i | 7.056079305294985 | 5.4069e-06 | deg |
| node | 7.835945283275974 | 2.9706e-05 | deg |
| peri | 51.69655417655998 | 3.8442e-05 | deg |
| M | 213.8350816208468 | 2.5686e-05 | deg |
| tp | 2459748.851004001426
(2022-Jun-18.35100400) | 9.8229e-05 | TDB |
| period | 1350.57278880312
3.70 | 8.4989e-06
2.327e-08 | d
yr |
| n | .26655357118444 | 1.6774e-09 | deg/d |
| Q | 2.621842978207495 | 1.0999e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.17 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
2.376 |
km |
0.223 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.260 |
|
0.059 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 70207 Davidunlap | Discovered 1999 Sept. 4 by M. Collins and M. White at Anza. |
| David Alexander Dunlap (1863-1924), born in Pembroke, Ontario, a mining magnate, philanthropist and amateur astronomer, was the namesake of the David Dunlap Observatory, location of Canada's largest optical telescope, and where the first black-hole candidate Cygnus X-1 was discovered and confirmed. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20090409/MPCPages.arc | Last Updated: 2009-04-10 |
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