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93 Minerva
Classification: Main-belt Asteroid          SPK-ID: 2000093
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411697907150578 3.3736e-08  
a 2.753927488839752 8.8362e-09 AU
q 2.365156121595799 9.3991e-08 AU
i 8.560799517591045 4.2517e-06 deg
node 4.075910431361689 2.4599e-05 deg
peri 274.7997116978221 2.8555e-05 deg
M 132.4343168737508 1.4183e-05 deg
tp 2456386.419631906210
(2013-Apr-03.91963191)
6.533e-05 JED
period 1669.272268187926
4.57
8.034e-06
2.2e-08
d
yr
n .2156628411438219 1.038e-09 deg/d
Q 3.142698856083704 1.0084e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1373  
   data-arc span      52888 days (144.80 yr)  
   first obs. used      1870-02-25  
   last obs. used      2014-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58613  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:42:57  

Additional Information
 Earth MOID = 1.3696 AU 
 T_jup = 3.314 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.8 mag n/a MPO265954  
diameter diameter 141.55 km 4.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 5.982 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Debehogne, H.; Lagerkvist, C.-I.; Zappala, V. (1982) Astron. Astrophys. Suppl. Ser. 50, 277-281.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.]
[Tungalag, N.; Shevchenko, V.G.; Lupishko, D.F. (2002) Kin. Fiz. Neb. Tel 18, 508-516; Kinematics and Physics of Celestial Bodies 18, ???-???.]
[Torppa, J.; Hentunen, V.-P.; Paakkonen, P.; Kehusmaa, P.; Muinonen, K. (2008) Icarus 198, 91-107.]
[Marchis, F.; Descamps, P.; Dalba, P.; Enriquez, J.E.; et al. (2011) EPSC-DPS2011 #653-3.]
[Marchis, F.; Vachier, F.; Durech, J.; Enriquez, J.E.; et al. (2013) Icarus 224, 178-191.]
geometric albedo albedo 0.0733   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
B-V BV .685 mag .024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=11; phase (min.=1.99, mean=14.12, max.=20.65) deg.
U-B UB .315 mag .029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=8; phase (min.=1.99, mean=14.28, max.=23.05) deg.
Tholen spectral type spec_T CU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B C   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)

93 Minerva          Discovered 1867-Aug-24 by Watson, J. C. at Ann Arbor
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1949 QN2 = A902 DA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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