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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.


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
   Orbit Determination Parameters
   # obs. used (total)      2582  
   data-arc span      40801 days (111.71 yr)  
   first obs. used      1909-01-22  
   last obs. used      2020-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42233  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:25  

Additional Information
 Earth MOID = 1.28089 au 
 Jupiter MOID = 2.07612 au 
 T_jup = 3.288 
[ 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
   Orbit Determination Parameters
   # obs. used (total)      2582  
   data-arc span      40801 days (111.71 yr)  
   first obs. used      1909-01-22  
   last obs. used      2020-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42233  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:25  

Additional Information
 Jupiter MOID = 2.07612 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  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

[ 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 9.35   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.DBLast Updated: 2003-08-29

[ show close-approach data ]
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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