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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 66 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1793971795202192 | 3.7211e-08 | |
| a | 2.760638774359625 | 9.1877e-09 | au |
| q | 2.265387964565354 | 1.0526e-07 | au |
| i | 11.70492497738869 | 4.3213e-06 | deg |
| node | 240.8944599160431 | 1.9627e-05 | deg |
| peri | 70.17071914084913 | 2.2805e-05 | deg |
| M | 287.367048134652 | 1.3336e-05 | deg |
| tp | 2459338.521244242067
(2021-May-04.02124424) | 6.2726e-05 | TDB |
| period | 1675.377976551705
4.59 | 8.3637e-06
2.29e-08 | d
yr |
| n | .2148768845230728 | 1.0727e-09 | deg/d |
| Q | 3.255889584153897 | 1.0836e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.35 |
|
n/a |
E2021B10 |
IRAS observations used: 20 |
| diameter |
diameter |
35.752 |
km |
0.371 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
11.98 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Barucci, M.A.; Di Martino, M.; Dotto, E.; Fulchignoni, M.; et al. (1994) Icarus 109, 267-273.]
[Warner, B.D.; Higgins, D. (2010) Minor Planet Bull. 37, 143-144.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.] |
| geometric albedo |
albedo |
0.242 |
|
0.018 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.891 |
|
0.034 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=6.26 deg. |
| U-B |
UB |
0.386 |
|
0.052 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=6.26 deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices |
| SMASSII spectral type |
spec_B |
S |
|
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) |
|
| 188 Menippe (A878 MA) Discovered 1878-Jun-18 by Peters, C. H. F. at Clinton |
| 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 |
| 2034-Mar-08 07:57 |
< 00:01 |
Amphi |
0.0494812506634269 |
0.0494793906361036 |
0.0494831107388809 |
6.1867261232262 |
6.18672610444724 |
2464029.831096960 |
0.462466631488675 |
124.271436769273 |
34.0689637487375 |
43.8050240513499 |
156385.228392977 |
T |
66 |
CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:33 |
2020-Nov-13 04:32 |
|
Alternate Designations
| A878 MA = 1948 WQ = A897 QA |
|
|
