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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 36 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1597921212972953 | 2.3904e-08 | |
| a | 2.357917299851278 | 5.327e-09 | au |
| q | 1.981140692664451 | 5.6006e-08 | au |
| i | .2648162048235789 | 2.7134e-06 | deg |
| node | 267.6860411081825 | 0.00075616 | deg |
| peri | 166.8182587502267 | 0.00075624 | deg |
| M | 117.8588417156453 | 1.1756e-05 | deg |
| tp | 2458567.536836629580
(2019-Mar-25.03683663) | 4.2715e-05 | TDB |
| period | 1322.486599600279
3.62 | 4.4816e-06
1.227e-08 | d
yr |
| n | .2722144784747231 | 9.2247e-10 | deg/d |
| Q | 2.734693907038104 | 6.1782e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.0 |
|
n/a |
MPO421637 |
|
| diameter |
diameter |
6.104 |
km |
0.265 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
2.7010 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Benishek, V. (2019) Minor Planet Bull. 46, 208-210.] |
| geometric albedo |
albedo |
0.328 |
|
0.077 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| SMASSII spectral type |
spec_B |
S |
|
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) |
|
| 1045 Michela (A924 WN) Discovered 1924-Nov-19 by Van Biesbroeck, G. at Williams Bay |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A924 WN = 1953 VB2 = 1964 XJ = 1976 AL |
|
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