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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 ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 86 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08080840428504826 3.2195e-08  
a 2.338736893205066 6.0601e-09 au
q 2.149747296822593 7.5517e-08 au
i 9.0365148245486 4.022e-06 deg
node 144.8861068037228 2.2321e-05 deg
peri 296.9866485992316 3.362e-05 deg
M 301.9809268631337 2.5263e-05 deg
tp 2459211.042008991993
(2020-Dec-27.54200899)		 9.1823e-05 TDB
period 1306.38286927331
3.58		 5.0776e-06
1.39e-08		 d
yr
n .2755700556608293 1.0711e-09 deg/d
Q 2.527726489587539 6.5498e-09 au
   Orbit Determination Parameters
   # obs. used (total)      3005  
   data-arc span      44587 days (122.07 yr)  
   first obs. used      1898-10-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39601  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:52:23  

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. 2020-October); 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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