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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 66 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1795999673434277 | 3.7193e-08 | |
a | 2.761458679382472 | 9.0663e-09 | au |
q | 2.265500790745155 | 1.0532e-07 | au |
i | 11.70335135981359 | 4.3207e-06 | deg |
node | 240.8925537211671 | 1.963e-05 | deg |
peri | 70.1134412171793 | 2.2807e-05 | deg |
M | 330.4014481097216 | 1.3412e-05 | deg |
tp | 2459338.307931338939 (2021-May-03.80793134) | 6.2709e-05 | TDB |
period | 1676.124408583401 4.59 | 8.2545e-06 2.26e-08 | d yr |
n | .214781192945134 | 1.0577e-09 | deg/d |
Q | 3.257416568019789 | 1.0695e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2455938.5 (2012-Jan-12.0) TDB
Reference: JPL 66 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .176087483984738 | 3.6858e-08 | |
q | 2.275366410515018 | 1.04e-07 | au |
tp | 2455978.188586622810 (2012-Feb-20.68858662) | 5.9597e-05 | TDB |
node | 241.171461695775 | 1.9524e-05 | deg |
peri | 68.69225688226194 | 2.2971e-05 | deg |
i | 11.73376740157238 | 4.33e-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 |
1.358504482877017E-15 |
-3.82379396690212E-15 |
-2.173323521017734E-13 |
-8.918904424003735E-16 |
-4.103322853444764E-14 |
-3.234421014488219E-17 |
q |
-3.82379396690212E-15 |
1.081659512833839E-14 |
7.070351091208307E-13 |
1.783050090100292E-15 |
1.340251251532887E-13 |
1.915541176011284E-16 |
tp |
-2.173323521017734E-13 |
7.070351091208307E-13 |
3.551822088268023E-9 |
-5.875874593362784E-12 |
7.401722960312779E-10 |
1.866973157254196E-12 |
node |
-8.918904424003735E-16 |
1.783050090100292E-15 |
-5.875874593362784E-12 |
3.811954285034514E-10 |
-3.739761719342863E-10 |
2.585094227585801E-12 |
peri |
-4.103322853444764E-14 |
1.340251251532887E-13 |
7.401722960312779E-10 |
-3.739761719342863E-10 |
5.276729776983078E-10 |
-2.13451265274168E-12 |
i |
-3.234421014488219E-17 |
1.915541176011284E-16 |
1.866973157254196E-12 |
2.585094227585801E-12 |
-2.13451265274168E-12 |
1.874861924182494E-11 |
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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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Alternate Designations
A878 MA = 1948 WQ = A897 QA |
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