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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 68 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1796000348664449 | 2.1593e-08 | |
a | 2.761458678431831 | 8.0276e-09 | au |
q | 2.265500603503227 | 6.2563e-08 | au |
i | 11.70335314304246 | 3.4223e-07 | deg |
node | 240.8925893277755 | 1.2934e-06 | deg |
peri | 70.11339166762106 | 3.573e-06 | deg |
M | 330.401459500906 | 2.7671e-06 | deg |
tp | 2459338.307878231550 (2021-May-03.80787823) | 1.3191e-05 | TDB |
period | 1676.124407717884 4.59 | 7.3087e-06 2.001e-08 | d yr |
n | .2147811930560426 | 9.3655e-10 | deg/d |
Q | 3.257416753360435 | 9.4693e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2456272.5 (2012-Dec-11.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1760933509011894 | 2.1177e-08 | |
q | 2.275849885477925 | 6.0964e-08 | au |
tp | 2455978.527034338911 (2012-Feb-21.02703434) | 1.4093e-05 | TDB |
node | 241.1714699939261 | 1.2779e-06 | deg |
peri | 68.80025434026287 | 3.7169e-06 | deg |
i | 11.73373791634622 | 3.4268e-07 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
|
|
e |
q |
tp |
node |
peri |
i |
e |
4.484677213275333E-16 |
-1.284411111980198E-15 |
2.437521042787029E-14 |
-1.274583042363948E-14 |
4.584354642033311E-14 |
1.875408980859533E-15 |
q |
-1.284411111980198E-15 |
3.71660922853307E-15 |
-1.205357394375331E-13 |
3.621096621699107E-14 |
-1.349693370040362E-13 |
-5.340721899008306E-15 |
tp |
2.437521042787029E-14 |
-1.205357394375331E-13 |
1.986196894407609E-10 |
-5.775539068075945E-12 |
3.965958043402658E-11 |
1.869553139757679E-12 |
node |
-1.274583042363948E-14 |
3.621096621699107E-14 |
-5.775539068075945E-12 |
1.633050901697838E-12 |
-3.365770224263491E-12 |
-1.408498002020208E-13 |
peri |
4.584354642033311E-14 |
-1.349693370040362E-13 |
3.965958043402658E-11 |
-3.365770224263491E-12 |
1.381537188136286E-11 |
7.077553276061714E-13 |
i |
1.875408980859533E-15 |
-5.340721899008306E-15 |
1.869553139757679E-12 |
-1.408498002020208E-13 |
7.077553276061714E-13 |
1.174271492150195E-13 |
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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) |
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188 Menippe (A878 MA) Discovered 1878-Jun-18 by Peters, C. H. F. at Clinton |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
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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 |
68 |
CATAB v2.0f-lin.ifort 2021-Apr-12 10:29:20 |
2021-Apr-12 10:29 |
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Alternate Designations
A878 MA = 1948 WQ = A897 QA |
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