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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 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1796000348664449 2.1593e-08  
a 2.761458678431831 8.0276e-09 au
q 2.265500603503227 6.2563e-08 au
i 11.70335314304246 3.4223e-07 deg
node 240.8925893277755 1.2934e-06 deg
peri 70.11339166762106 3.573e-06 deg
M 330.401459500906 2.7671e-06 deg
tp 2459338.307878231550
(2021-May-03.80787823)		 1.3191e-05 TDB
period 1676.124407717884
4.59		 7.3087e-06
2.001e-08		 d
yr
n .2147811930560426 9.3655e-10 deg/d
Q 3.257416753360435 9.4693e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      40801 days (111.71 yr)  
   first obs. used      1909-01-22  
   last obs. used      2020-10-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4258  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:27:11  

Additional Information
 Earth MOID = 1.28089 au 
 Jupiter MOID = 2.07612 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456272.5 (2012-Dec-11.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760933509011894 2.1177e-08  
q 2.275849885477925 6.0964e-08 au
tp 2455978.527034338911
(2012-Feb-21.02703434)		 1.4093e-05 TDB
node 241.1714699939261 1.2779e-06 deg
peri 68.80025434026287 3.7169e-06 deg
i 11.73373791634622 3.4268e-07 deg
   Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      40801 days (111.71 yr)  
   first obs. used      1909-01-22  
   last obs. used      2020-10-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4258  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:27:11  

Additional Information
 Jupiter MOID = 2.07612 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.484677213275333E-16 -1.284411111980198E-15 2.437521042787029E-14 -1.274583042363948E-14 4.584354642033311E-14 1.875408980859533E-15
q -1.284411111980198E-15 3.71660922853307E-15 -1.205357394375331E-13 3.621096621699107E-14 -1.349693370040362E-13 -5.340721899008306E-15
tp 2.437521042787029E-14 -1.205357394375331E-13 1.986196894407609E-10 -5.775539068075945E-12 3.965958043402658E-11 1.869553139757679E-12
node -1.274583042363948E-14 3.621096621699107E-14 -5.775539068075945E-12 1.633050901697838E-12 -3.365770224263491E-12 -1.408498002020208E-13
peri 4.584354642033311E-14 -1.349693370040362E-13 3.965958043402658E-11 -3.365770224263491E-12 1.381537188136286E-11 7.077553276061714E-13
i 1.875408980859533E-15 -5.340721899008306E-15 1.869553139757679E-12 -1.408498002020208E-13 7.077553276061714E-13 1.174271492150195E-13

[ 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2034-Mar-08 07:57 < 00:01 Amphi 0.0494812506634269 0.0494793906361036 0.0494831107388809 6.1867261232262 6.18672610444724 2464029.831096960 0.462466631488675 124.271436769273 34.0689637487375 43.8050240513499 156385.228392977 T 68 CATAB v2.0f-lin.ifort 2021-Apr-12 10:29:20 2021-Apr-12 10:29

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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