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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 129 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1920793460319339 | 2.83e-08 | |
a | 2.366693338137232 | 4.1224e-09 | au |
q | 1.912100429489698 | 6.679e-08 | au |
i | 4.815795782138252 | 3.3225e-06 | deg |
node | 160.044412526044 | 3.1661e-05 | deg |
peri | 298.7201598118137 | 3.2614e-05 | deg |
M | 352.6038239658896 | 8.0683e-06 | deg |
tp | 2459227.822230299538 (2021-Jan-13.32223030) | 2.9809e-05 | TDB |
period | 1329.876798831048 3.64 | 3.4747e-06 9.513e-09 | d yr |
n | .2707017674993936 | 7.0728e-10 | deg/d |
Q | 2.821286246784766 | 4.9143e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2454212.5 (2007-Apr-22.0) TDB
Reference: JPL 129 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1903000457485469 | 2.8052e-08 | |
q | 1.916991740277232 | 6.5928e-08 | au |
tp | 2453901.904512229320 (2006-Jun-15.40451223) | 3.2493e-05 | TDB |
node | 160.3627042192685 | 3.1761e-05 | deg |
peri | 297.5252988064281 | 3.2739e-05 | deg |
i | 4.805738804254454 | 3.3147e-06 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
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|
e |
q |
tp |
node |
peri |
i |
e |
7.869040384225581E-16 |
-1.847083708071762E-15 |
1.55987969188251E-13 |
6.478365277668392E-16 |
5.12571167818173E-14 |
-8.230585585407921E-17 |
q |
-1.847083708071762E-15 |
4.346457945546156E-15 |
-4.049502167555943E-13 |
-1.599053623819051E-15 |
-1.285870196651241E-13 |
2.281426956714536E-16 |
tp |
1.55987969188251E-13 |
-4.049502167555943E-13 |
1.05580421985969E-9 |
-1.313079166878255E-12 |
2.64459363455298E-10 |
1.991765398290598E-13 |
node |
6.478365277668392E-16 |
-1.599053623819051E-15 |
-1.313079166878255E-12 |
1.008748700161156E-9 |
-1.005182679607731E-9 |
-2.665982021857731E-11 |
peri |
5.12571167818173E-14 |
-1.285870196651241E-13 |
2.64459363455298E-10 |
-1.005182679607731E-9 |
1.071856839513419E-9 |
2.659599487756789E-11 |
i |
-8.230585585407921E-17 |
2.281426956714536E-16 |
1.991765398290598E-13 |
-2.665982021857731E-11 |
2.659599487756789E-11 |
1.098701092105086E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
9.74 |
|
n/a |
E2021B10 |
IRAS observations used: 15 |
magnitude slope |
G |
-0.04 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
diameter |
diameter |
81.579 |
km |
3.062 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
rotation period |
rot_per |
16.136 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.] [Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.] [Pilcher, F.; Briggs, J.; Martinez, L.; Odden, C.; Aggarwal, A. (2014) Minor Planet Bull. 41, 187.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.] |
geometric albedo |
albedo |
0.033 |
|
0.004 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
B-V |
BV |
0.717 |
|
0.023 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=5.23, mean=11.78, max.=18.33) deg. |
U-B |
UB |
0.341 |
|
0.015 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=5.23, mean=11.78, max.=18.33) deg. |
Tholen spectral type |
spec_T |
C |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
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) |
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163 Erigone (A876 HC) Discovered 1876-Apr-26 by Perrotin, J. at Toulouse |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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[ show close-approach data ]
Alternate Designations
A876 HC = 1957 OT = 2017 YH23 = A892 RA |
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