[ 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.
[ revert to old Java-based viewer ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 106 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1021148709921415 | 3.2864e-08 | |
| a | 2.595920754734363 | 5.9607e-09 | au |
| q | 2.330838641758841 | 8.5006e-08 | au |
| i | 4.933028986463366 | 3.6813e-06 | deg |
| node | 305.7104640507617 | 3.6991e-05 | deg |
| peri | 166.9836708271135 | 4.0421e-05 | deg |
| M | 160.3595165440222 | 1.7239e-05 | deg |
| tp | 2458320.000500065805
(2018-Jul-20.50050007) | 7.2387e-05 | TDB |
| period | 1527.691185755465
4.18 | 5.2618e-06
1.441e-08 | d
yr |
| n | .235649719888889 | 8.1165e-10 | deg/d |
| Q | 2.861002867709885 | 6.5694e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
8.2 |
|
n/a |
MPO473761 |
IRAS observations used: 3 |
| diameter |
diameter |
126.344 |
km |
0.233 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
22.072 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Pilcher, F. (2010) Minor Planet Bull. 37, 119-122.]
[Pilcher, F. (2011) Minor Planet Bull. 38, 183-185.] |
| geometric albedo |
albedo |
0.062 |
|
0.008 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.690 |
|
0.012 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=6; phase (min.=11.71, mean=18.59, max.=24.92) deg. |
| U-B |
UB |
0.389 |
|
0.016 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=11.71, mean=19.20, max.=24.92) deg. |
| Tholen spectral type |
spec_T |
C |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
Ch |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 111 Ate (A870 PA) Discovered 1870-Aug-14 by Peters, C. H. F. at Clinton |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
Alternate Designations
| A870 PA = 1935 AA = A911 KE |
|
|
