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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 ]

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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 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1796000156439849 2.117e-08  
a 2.761458700024776 6.3974e-09 au
q 2.265500674300108 6.0556e-08 au
i 11.70335306327107 3.4184e-07 deg
node 240.8925897849539 1.2895e-06 deg
peri 70.11338826696466 3.493e-06 deg
M 330.4014559747642 2.6506e-06 deg
tp 2459338.307896265279
(2021-May-03.80789627)
1.2549e-05 TDB
period 1676.12442737731
4.59
5.8245e-06
1.595e-08
d
yr
n .2147811905368532 7.4637e-10 deg/d
Q 3.257416725749444 7.5464e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2662  
   data-arc span      44957 days (123.09 yr)  
   first obs. used      1897-09-05  
   last obs. used      2020-10-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:00:28  

Additional Information
 Earth MOID = 1.28089 au 
 Jupiter MOID = 2.07612 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456237.5 (2012-Nov-06.0) TDB
Reference: JPL 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760732501853478 2.0755e-08  
q 2.275710249074008 5.8975e-08 au
tp 2455978.446282114203
(2012-Feb-20.94628211)
1.3149e-05 TDB
node 241.1714712621587 1.2742e-06 deg
peri 68.77458307807979 3.6299e-06 deg
i 11.73373798407053 3.423e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2662  
   data-arc span      44957 days (123.09 yr)  
   first obs. used      1897-09-05  
   last obs. used      2020-10-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:00:28  

Additional Information
 Jupiter MOID = 2.07612 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.307815853964513E-16 -1.219634000273668E-15 3.182343814522008E-15 -1.233211462912696E-14 4.246598160204115E-14 1.806939356069747E-15
q -1.219634000273668E-15 3.478006607284418E-15 -4.18011319442869E-14 3.469195589487034E-14 -1.225119124670538E-13 -5.089943834043123E-15
tp 3.182343814522008E-15 -4.18011319442869E-14 1.728994458620753E-10 -5.278551199518819E-12 3.560996893642386E-11 1.787434433452956E-12
node -1.233211462912696E-14 3.469195589487034E-14 -5.278551199518819E-12 1.623530124169678E-12 -3.287471585798305E-12 -1.392870288476189E-13
peri 4.246598160204115E-14 -1.225119124670538E-13 3.560996893642386E-11 -3.287471585798305E-12 1.317585407037309E-11 6.948419323672942E-13
i 1.806939356069747E-15 -5.089943834043123E-15 1.787434433452956E-12 -1.392870288476189E-13 6.948419323672942E-13 1.171678092517917E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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

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