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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .09674453907005623 | 4.5373e-08 | |
| a | 2.390549203350382 | 1.0147e-08 | au |
| q | 2.159276622547959 | 1.0895e-07 | au |
| i | 7.05670078913316 | 5.4481e-06 | deg |
| node | 7.846588740888247 | 2.9712e-05 | deg |
| peri | 51.76214803957888 | 3.8585e-05 | deg |
| M | 160.4267785135199 | 2.5797e-05 | deg |
| tp | 2458398.884081209950
(2018-Oct-07.38408121) | 9.482e-05 | TDB |
| period | 1350.034780796685
3.70 | 8.5957e-06
2.353e-08 | d
yr |
| n | .2666597965628384 | 1.6978e-09 | deg/d |
| Q | 2.621821784152805 | 1.1129e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.2 |
|
n/a |
MPO468640 |
|
| 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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