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JPL Small-Body Database Browser
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361 Bononia (A893 EF)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000361
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 90 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2120207003136531 3.7728e-08  
a 3.960400237696753 2.417e-08 au
q 3.120713405777929 1.4724e-07 au
i 12.61690744345442 5.4104e-06 deg
node 18.85457349341529 1.9158e-05 deg
peri 68.54015473409393 2.2894e-05 deg
M 144.3752152715207 1.2255e-05 deg
tp 2457845.991359047870
(2017-Apr-02.49135905)
9.4606e-05 TDB
period 2878.77050060927
7.88
2.6353e-05
7.215e-08
d
yr
n .1250533864800298 1.1448e-09 deg/d
Q 4.800087069615577 2.9294e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2445  
   data-arc span      43257 days (118.43 yr)  
   first obs. used      1901-03-25  
   last obs. used      2019-08-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42877  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:52:33  

Additional Information
 Earth MOID = 2.16609 au 
 Jupiter MOID = 1.06463 au 
 T_jup = 2.978 
[ 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 8.4   n/a MPO492753 IRAS observations used: 23
diameter diameter 154.334 km 5.413 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 13.835 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Binzel, R.P.; Sauter, L.M. (1992) Icarus 95, 222-238.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Warner, B.D.; Stephens, R.D.; Coley, D.R. (2017) Minor Planet Bull. 44, 130-137.]
[Warner, B.D.; Stephens, R.D. (2018) Minor Planet Bull. 45, 262-265.]
geometric albedo albedo 0.038   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
B-V BV 0.743   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=1.21, mean=6.28, max.=9.31) deg.
U-B UB 0.271   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.86, mean=7.31, max.=8.75) deg.
Tholen spectral type spec_T DP   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices; used ground-based radiometric albedo

361 Bononia (A893 EF)          Discovered 1893-Mar-11 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A893 EF = 1953 VD2 = 1975 LJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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