[ hide orbit diagram ]
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 38 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1008150516864391 | 3.6563e-08 | |
| a | 2.616914090844426 | 1.129e-08 | au |
| q | 2.353089761516974 | 9.8685e-08 | au |
| i | 11.70064162625976 | 5.2679e-07 | deg |
| node | 310.0404817882837 | 3.1385e-06 | deg |
| peri | 203.0280698542538 | 6.7158e-06 | deg |
| M | 28.62154752059934 | 4.4331e-06 | deg |
| tp | 2459077.565653686628
(2020-Aug-16.06565369) | 1.8946e-05 | TDB |
| period | 1546.260370476547
4.23 | 1.0006e-05
2.739e-08 | d
yr |
| n | .2328197804675357 | 1.5066e-09 | deg/d |
| Q | 2.880738420171878 | 1.2428e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2456881.5 (2014-Aug-12.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1008740410212133 | 3.6797e-08 | |
| q | 2.353058408293129 | 9.9305e-08 | au |
| tp | 2457534.034268175637
(2016-May-25.53426818) | 1.9927e-05 | TDB |
| node | 310.103990794971 | 3.1336e-06 | deg |
| peri | 203.6341693530736 | 6.5129e-06 | deg |
| i | 11.70601845567654 | 5.2712e-07 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
1.354037936436401E-15 |
-3.636325490831002E-15 |
2.767418114582716E-13 |
2.049234622741885E-14 |
1.417932950715226E-13 |
3.546193910400055E-15 |
| q |
-3.636325490831002E-15 |
9.861527235185615E-15 |
-8.025531883260183E-13 |
-5.519470761468655E-14 |
-3.998507965310338E-13 |
-9.444484889567511E-15 |
| tp |
2.767418114582716E-13 |
-8.025531883260183E-13 |
3.970926853239041E-10 |
9.747449311991175E-12 |
1.069692504305885E-10 |
5.396684795576228E-13 |
| node |
2.049234622741885E-14 |
-5.519470761468655E-14 |
9.747449311991175E-12 |
9.819628328409248E-12 |
-5.776678084017502E-12 |
1.411830860626731E-12 |
| peri |
1.417932950715226E-13 |
-3.998507965310338E-13 |
1.069692504305885E-10 |
-5.776678084017502E-12 |
4.241786603229268E-11 |
-1.054457555496255E-12 |
| i |
3.546193910400055E-15 |
-9.444484889567511E-15 |
5.396684795576228E-13 |
1.411830860626731E-12 |
-1.054457555496255E-12 |
2.778543838669792E-13 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.56 |
|
n/a |
E2020-QM5 |
|
| diameter |
diameter |
13.716 |
km |
0.194 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
49.50 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Stephens, R.D. (2012) Minor Planet Bull. 39, 181-183.] |
| geometric albedo |
albedo |
0.149 |
|
0.032 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
| 2842 Unsold (1950 OD) Discovered 1950-Jul-25 by Goethe Link Observatory at Brooklyn |
| Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program. |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| 1950 OD = 1930 YT = 1933 QX = 1944 BC = 1978 EG4 = 1982 BJ3 |
|
|
