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65889 (1998 BB4)
Classification: Main-belt Asteroid          SPK-ID: 2065889
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1748384081980132 4.1107e-08  
a 2.361745104363804 9.0127e-09 au
q 1.948821349747386 9.7201e-08 au
i 5.492549238306702 5.3408e-06 deg
node 138.0116770751829 4.6609e-05 deg
peri 344.3064739205032 4.8831e-05 deg
M 62.30604361773175 1.5558e-05 deg
tp 2458771.056564627020
(2019-Oct-14.55656463)
5.679e-05 TDB
period 1325.708261000315
3.63
7.5886e-06
2.078e-08
d
yr
n .2715529582114556 1.5544e-09 deg/d
Q 2.774668858980222 1.0588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      8047 days (22.03 yr)  
   first obs. used      1998-01-23  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5332  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:47:39  

Additional Information
 Earth MOID = .965107 au 
 Jupiter MOID = 2.29772 au 
 T_jup = 3.524 
[ 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 15.0   n/a MPO381717  
diameter diameter 5.066 km 0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65889 (1998 BB4)          Discovered 1998-Jan-23 by Stafford, T. at Zeno
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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