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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1357316438852802 | 3.0667e-08 | |
a | 3.134608917588505 | 1.4567e-08 | au |
q | 2.709143296266758 | 9.2823e-08 | au |
i | 2.297977527048292 | 3.7616e-06 | deg |
node | 66.8218112107285 | 9.131e-05 | deg |
peri | 34.96863070479688 | 9.2431e-05 | deg |
M | 221.5159777605933 | 1.5498e-05 | deg |
tp | 2459980.277396893586 (2023-Feb-04.77739689) | 8.8251e-05 | TDB |
period | 2027.092066956225 5.55 | 1.413e-05 3.869e-08 | d yr |
n | .1775943016444029 | 1.238e-09 | deg/d |
Q | 3.560074538910252 | 1.6544e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
11.09 |
|
n/a |
E2021B10 |
IRAS observations used: 9 |
diameter |
diameter |
29.726 |
km |
0.491 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
rotation period |
rot_per |
11.776 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Strabla, L.; Quadri, U.; Girelli, R.; Pilcher, F. (2012) Minor Planet Bull. 39, 154-155.] [Hanus, J.; Broz, M.; Durech, J.; Warner, B.D.; et al. (2013) Astron. Astrophys. 559, A134.] [Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.] |
geometric albedo |
albedo |
0.127 |
|
0.019 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
B-V |
BV |
0.650 |
|
0.014 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=13.59, mean=13.59, max.=13.59) deg. |
U-B |
UB |
0.285 |
|
0.035 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=13.59, mean=13.59, max.=13.59) deg. |
Tholen spectral type |
spec_T |
FCX: |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
|
621 Werdandi (A906 VM) Discovered 1906-Nov-11 by Kopff, A. at Heidelberg |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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