[ hide orbit diagram ]
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 43 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .09602959004065732 | 1.1082e-08 | |
| a | 3.02460046950415 | 1.0127e-08 | au |
| q | 2.734149326380886 | 3.2032e-08 | au |
| i | 6.036899744109647 | 1.0028e-06 | deg |
| node | 21.86197936341731 | 1.0075e-05 | deg |
| peri | 333.4925038455217 | 2.0156e-05 | deg |
| M | 27.76128598254775 | 1.3294e-05 | deg |
| tp | 2459052.337762156315
(2020-Jul-21.83776216) | 7.1007e-05 | TDB |
| period | 1921.323300990381
5.26 | 9.6497e-06
2.642e-08 | d
yr |
| n | .1873708603931631 | 9.4106e-10 | deg/d |
| Q | 3.315051612627413 | 1.11e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.79 |
|
n/a |
E2021B10 |
IRAS observations used: 11 |
| diameter |
diameter |
74.92 |
km |
2.7 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 11 |
| rotation period |
rot_per |
25.315 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Pilcher, F. (2016) Minor Planet Bull. 43, 135-136.] |
| geometric albedo |
albedo |
0.0447 |
|
0.003 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 11 |
| B-V |
BV |
0.698 |
|
0.027 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=4.13, mean=4.77, max.=5.40) deg. |
| U-B |
UB |
0.298 |
|
0.015 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=4.13, mean=4.77, max.=5.40) deg. |
| Tholen spectral type |
spec_T |
CX |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
| SMASSII spectral type |
spec_B |
C |
|
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) |
|
| 331 Etheridgea (A892 GA) Discovered 1892-Apr-01 by Charlois, A. at Nice |
| 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 |
| 2007-Aug-01 18:32 |
00:01 |
Psych |
0.0173936086139794 |
0.0173929020571233 |
0.0173943151782385 |
2.38866051898246 |
2.38866022777059 |
2454314.272502741 |
1.06127361465293 |
59.7552579472904 |
32.6592673507309 |
74.9600327812724 |
77570.6711016823 |
T |
43 |
CATAB v2.0f-lin.ifort 2021-Apr-12 10:43:58 |
2021-Apr-12 10:43 |
|
|
