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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 48 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .07014362189962199 | 3.0569e-08 | |
a | 2.624640008368175 | 6.3421e-09 | au |
q | 2.440538251998577 | 8.0526e-08 | au |
i | 7.521590631812684 | 4.208e-06 | deg |
node | 294.579986896302 | 2.3143e-05 | deg |
peri | 82.40180792080621 | 3.8871e-05 | deg |
M | 165.4930163319522 | 3.076e-05 | deg |
tp | 2458486.529587373892 (2019-Jan-03.02958737) | 0.00013241 | TDB |
period | 1553.112960548375 4.25 | 5.6294e-06 1.541e-08 | d yr |
n | .2317925412668572 | 8.4015e-10 | deg/d |
Q | 2.808741764737773 | 6.787e-09 | 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 |
9.11 |
|
n/a |
E2021B10 |
IRAS observations used: 27 |
diameter |
diameter |
95.07 |
km |
5.4 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 27 |
rotation period |
rot_per |
22.627 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Aznar, A.M.; Carreno Garcerain, A.; Arce Masego, E.; Brines Rodriques, P.; et al. (2016) Minor Planet Bull. 43, 257-263.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] |
geometric albedo |
albedo |
0.0548 |
|
0.007 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 27 |
B-V |
BV |
0.698 |
|
0.033 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=11.61, mean=14.85, max.=17.86) deg. |
U-B |
UB |
0.376 |
|
0.019 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=11.61, mean=14.85, max.=17.86) deg. |
Tholen spectral type |
spec_T |
C |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices |
|
407 Arachne (A895 TB) Discovered 1895-Oct-13 by Wolf, M. at Heidelberg |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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