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282 Clorinde (A889 BA)
Classification: Main-belt Asteroid          SPK-ID: 2000282
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 84 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08080840432523298 3.2229e-08  
a 2.338736893232713 6.1634e-09 au
q 2.149747296754025 7.5556e-08 au
i 9.036515000759486 4.0765e-06 deg
node 144.8861070299887 2.2336e-05 deg
peri 296.9866481783957 3.3918e-05 deg
M 301.9809270748297 2.5806e-05 deg
tp 2459211.042008227515
(2020-Dec-27.54200823)
9.3825e-05 TDB
period 1306.382869296475
3.58
5.1642e-06
1.414e-08
d
yr
n .2755700556559428 1.0893e-09 deg/d
Q 2.527726489711402 6.6615e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2980  
   data-arc span      44571 days (122.03 yr)  
   first obs. used      1898-10-20  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39748  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:31:21  

Additional Information
 Earth MOID = 1.18276 au 
 Jupiter MOID = 2.61737 au 
 T_jup = 3.545 
[ 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 11.0   n/a MPO492752 IRAS observations used: 22
diameter diameter 39.03 km 1.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 22
rotation period rot_per 6.42 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Binzel, R.P.; Mulholland, J.D. (1983) Icarus 56, 519-533.]
geometric albedo albedo 0.0502   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 22
B-V BV 0.628   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=8.91, mean=16.01, max.=23.11) deg.
U-B UB 0.274   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=8.91, mean=16.01, max.=23.11) deg.
Tholen spectral type spec_T BFU::   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B B   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)

282 Clorinde (A889 BA)          Discovered 1889-Jan-28 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A889 BA = 1955 RQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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