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2633 Bishop (1981 WR1)
Classification: Main-belt Asteroid          SPK-ID: 2002633
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1390623514291188 3.5516e-08  
a 2.225218812020736 6.3571e-09 au
q 1.915774651576822 7.9573e-08 au
i 3.126507468653182 3.583e-06 deg
node 62.40312731799524 6.7123e-05 deg
peri 266.4507275398502 6.8443e-05 deg
M 313.0712753692611 1.3977e-05 deg
tp 2459158.549731358063
(2020-Nov-05.04973136)
4.7101e-05 TDB
period 1212.432337264789
3.32
5.1956e-06
1.422e-08
d
yr
n .2969237861241388 1.2724e-09 deg/d
Q 2.53466297246465 7.2411e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2820  
   data-arc span      24028 days (65.79 yr)  
   first obs. used      1954-09-04  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42678  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:47:50  

Additional Information
 Earth MOID = .907636 au 
 Jupiter MOID = 2.77655 au 
 T_jup = 3.632 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1   n/a MPO473801  
diameter diameter 6.969 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.73 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Rowe, B. (2018) Minor Planet Bull. 45, 203-207.]
geometric albedo albedo 0.209   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2633 Bishop (1981 WR1)          Discovered 1981-Nov-24 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 WR1 = 1934 QC = 1951 WW1 = 1957 OB1 = 1957 OD = 1964 TP = 1977 NP = 1979 BJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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