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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1597850079629141 | 3.2396e-08 | |
| a | 2.22893801408012 | 4.0935e-09 | au |
| q | 1.872787135751486 | 7.1839e-08 | au |
| i | 1.747947405884915 | 2.7151e-06 | deg |
| node | 121.5642425812974 | 0.00011518 | deg |
| peri | 252.4640724458945 | 0.00011548 | deg |
| M | 327.352552680667 | 8.2617e-06 | deg |
| tp | 2459110.728054552605
(2020-Sep-18.22805455) | 2.7892e-05 | TDB |
| period | 1215.473272712479
3.33 | 3.3483e-06
9.167e-09 | d
yr |
| n | .2961809264605346 | 8.1591e-10 | deg/d |
| Q | 2.585088892408755 | 4.7475e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.6 |
|
n/a |
MPO473764 |
|
| diameter |
diameter |
8.196 |
km |
0.100 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
4.5385 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Pilcher, F. (2011) Minor Planet Bull. 38, 50-52.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] |
| geometric albedo |
albedo |
0.379 |
|
0.046 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| B-V |
BV |
0.887 |
|
0.013 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=2.25, mean=2.72, max.=3.18) deg. |
| U-B |
UB |
0.463 |
|
0.051 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=2.25, mean=2.72, max.=3.18) deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices |
|
| 296 Phaetusa (A890 QB) Discovered 1890-Aug-19 by Charlois, A. at Nice |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A890 QB = 1930 YH = A917 XB |
|
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