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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 22 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .0959152392338002 | 4.5389e-08 | |
| a | 2.392375402577315 | 1.0152e-08 | au |
| q | 2.162910143502053 | 1.0902e-07 | au |
| i | 7.057143480465297 | 5.4074e-06 | deg |
| node | 7.804183326744049 | 2.9687e-05 | deg |
| peri | 51.54061034978483 | 3.8493e-05 | deg |
| M | 266.2156608720945 | 2.5967e-05 | deg |
| tp | 2459748.603418281645
(2022-Jun-18.10341828) | 9.8713e-05 | TDB |
| period | 1351.582063275164
3.70 | 8.6034e-06
2.355e-08 | d
yr |
| n | .2663545261377953 | 1.6955e-09 | deg/d |
| Q | 2.621840661652578 | 1.1126e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ 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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