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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.
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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 124 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1919485115733793 | 2.8945e-08 | |
| a | 2.366236890062912 | 4.3636e-09 | au |
| q | 1.912041240985314 | 6.8072e-08 | au |
| i | 4.815900002620304 | 3.4631e-06 | deg |
| node | 160.047139943991 | 3.178e-05 | deg |
| peri | 298.7456065075635 | 3.2807e-05 | deg |
| M | 298.424844033529 | 8.95e-06 | deg |
| tp | 2459227.899119040355
(2021-Jan-13.39911904) | 3.3163e-05 | TDB |
| period | 1329.492090919013
3.64 | 3.6776e-06
1.007e-08 | d
yr |
| n | .2707800990009271 | 7.4903e-10 | deg/d |
| Q | 2.820432539140509 | 5.2012e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.7 |
|
n/a |
MPO492750 |
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. 2019-August); 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) |
|
| 163 Erigone (A876 HC) Discovered 1876-Apr-26 by Perrotin, J. at Toulouse |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
|
| Date/Time (TDB) |
Time Uncertainty
(days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
| 1958-Mar-12 18:16 |
< 00:01 |
Amphi |
0.046837060069188 |
0.046836739064526 |
0.0468373810758321 |
4.20365197968357 |
4.20365195048533 |
2436275.261431297 |
0.246964402422241 |
67.1963301331089 |
15.5600322403347 |
-86.7324099008775 |
449396.977154869 |
T |
124 |
CATAB v2.0f-lin.ifort 2020-Oct-22 15:25:35 |
2020-Oct-22 15:25 |
|
Alternate Designations
| A876 HC = 1957 OT = 2017 YH23 = A892 RA |
|
|
