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JPL Small-Body Database Browser
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512 Taurinensis (A903 MC)
Classification: Mars-crossing Asteroid          SPK-ID: 2000512
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2540171911599553 3.3166e-08  
a 2.189676225703606 6.4261e-09 au
q 1.633460821300644 7.2396e-08 au
i 8.747940041881026 3.5842e-06 deg
node 107.0286437752924 2.5358e-05 deg
peri 249.1877210034305 2.6888e-05 deg
M 335.3433861817003 1.3606e-05 deg
tp 2459081.558621511902
4.4954e-05 TDB
period 1183.50005233189
n .3041824960553908 1.339e-09 deg/d
Q 2.745891630106569 8.0585e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2617  
   data-arc span      40559 days (111.04 yr)  
   first obs. used      1909-04-11  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43024  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:07:23  

Additional Information
 Earth MOID = .653262 au 
 Jupiter MOID = 2.73281 au 
 T_jup = 3.617 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.8   n/a MPO473768 IRAS observations used: 5
diameter diameter 23.09 km 1.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
rotation period rot_per 5.585 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Lagerkvist, C.-I.; Kamel, L. (1982) Moon Planets 27, 463-466.]
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; et al. (1998) Astron. Astrophys. Suppl. Ser. 128, 525-540.]
[Behrend, R. (2005) Observatoire de Geneve web site,]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Benishek, V. (2016) Minor Planet Bull. 43, 339-342.]
geometric albedo albedo 0.1772   0.024 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
B-V BV 0.917   0.014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=10.75, mean=15.90, max.=29.56) deg.
U-B UB 0.525   0.009 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=10.75, mean=14.22, max.=19.90) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
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)

512 Taurinensis (A903 MC)          Discovered 1903-Jun-23 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A903 MC = A909 GE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Jun-04 02:54 UT
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