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JPL Small-Body Database Browser
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66202 (1999 BJ21)
Classification: Main-belt Asteroid          SPK-ID: 2066202
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1145314661506917 4.4353e-08  
a 2.600063751112159 1.1897e-08 au
q 2.302274637612016 1.1376e-07 au
i 14.34158931383111 4.6175e-06 deg
node 331.2272262762747 1.3924e-05 deg
peri 348.7373346563288 2.1268e-05 deg
M 175.6767569065632 1.7422e-05 deg
tp 2458253.215066050044
(2018-May-14.71506605)
7.3303e-05 TDB
period 1531.349855035568
4.19
1.051e-05
2.877e-08
d
yr
n .2350867104706379 1.6135e-09 deg/d
Q 2.897852864612302 1.3259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1823  
   data-arc span      7803 days (21.36 yr)  
   first obs. used      1998-09-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46109  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:52:35  

Additional Information
 Earth MOID = 1.29152 au 
 Jupiter MOID = 2.4391 au 
 T_jup = 3.362 
[ 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 13.7   n/a MPO453057  
diameter diameter 5.680 km 0.900 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.317   0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

66202 (1999 BJ21)          Discovered 1999-Jan-16 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 BJ21 = 2000 JO70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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