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188 Menippe (A878 MA)
Classification: Main-belt Asteroid          SPK-ID: 2000188
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1793971788495338 3.73e-08  
a 2.760638774165201 9.204e-09 au
q 2.265387966257329 1.0547e-07 au
i 11.7049249802817 4.3215e-06 deg
node 240.8944597527507 1.9701e-05 deg
peri 70.17071916738936 2.2865e-05 deg
M 287.3670484045491 1.3356e-05 deg
tp 2459338.521242950303
(2021-May-04.02124295)
6.2827e-05 TDB
period 1675.377976374716
4.59
8.3785e-06
2.294e-08
d
yr
n .2148768845457726 1.0746e-09 deg/d
Q 3.255889582073074 1.0855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2546  
   data-arc span      40736 days (111.53 yr)  
   first obs. used      1909-01-22  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:11:34  

Additional Information
 Earth MOID = 1.2827 au 
 Jupiter MOID = 2.0784 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455910.5 (2011-Dec-15.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761171417933819 3.6945e-08  
q 2.275370950320867 1.0421e-07 au
tp 2455978.175636536370
(2012-Feb-20.67563654)
5.9645e-05 TDB
node 241.1711661484142 1.9598e-05 deg
peri 68.68871294872865 2.3029e-05 deg
i 11.73372027465411 4.3302e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2546  
   data-arc span      40736 days (111.53 yr)  
   first obs. used      1909-01-22  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:11:34  

Additional Information
 Jupiter MOID = 2.0784 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.364935983439811E-15 -3.840407673854759E-15 -2.110546606543081E-13 -9.394202520431801E-16 -4.020156962051222E-14 -2.651873177250626E-17
q -3.840407673854759E-15 1.085959159285153E-14 6.912663048229538E-13 1.942450857082587E-15 1.319138986291268E-13 1.780597028742028E-16
tp -2.110546606543081E-13 6.912663048229538E-13 3.557488615519347E-9 -5.412311845973029E-12 7.403536494020938E-10 1.879919966661701E-12
node -9.394202520431801E-16 1.942450857082587E-15 -5.412311845973029E-12 3.840805390401433E-10 -3.767102207010266E-10 2.623134664000138E-12
peri -4.020156962051222E-14 1.319138986291268E-13 7.403536494020938E-10 -3.767102207010266E-10 5.303215099960103E-10 -2.169580142970273E-12
i -2.651873177250626E-17 1.780597028742028E-16 1.879919966661701E-12 2.623134664000138E-12 -2.169580142970273E-12 1.875036960706862E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.4   n/a MPO473763 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. 2019-August); 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.DBLast Updated: 2003-08-29

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Alternate Designations
 A878 MA = 1948 WQ = A897 QA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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