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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 66 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1793971795202192 3.7211e-08  
a 2.760638774359625 9.1877e-09 au
q 2.265387964565354 1.0526e-07 au
i 11.70492497738869 4.3213e-06 deg
node 240.8944599160431 1.9627e-05 deg
peri 70.17071914084913 2.2805e-05 deg
M 287.367048134652 1.3336e-05 deg
tp 2459338.521244242067
(2021-May-04.02124424)		 6.2726e-05 TDB
period 1675.377976551705
4.59		 8.3637e-06
2.29e-08		 d
yr
n .2148768845230728 1.0727e-09 deg/d
Q 3.255889584153897 1.0836e-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 = 1.2827 au 
 Jupiter MOID = 2.0784 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 = 2.0784 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 9.4   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

[ 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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