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85864 (1999 BJ7)
Classification: Main-belt Asteroid          SPK-ID: 2085864
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1974747333192426 4.1033e-08  
a 2.432014450837658 6.459e-09 au
q 1.951753045729947 1.0049e-07 au
i 2.452757421591919 3.0247e-06 deg
node 90.23698718044228 0.00011636 deg
peri 247.8231502292859 0.00011672 deg
M 95.27732662557707 9.2271e-06 deg
tp 2459029.864329618518
(2020-Jun-29.36432962)
3.5497e-05 TDB
period 1385.312182992141
3.79
5.5187e-06
1.511e-08
d
yr
n .2598692225621192 1.0353e-09 deg/d
Q 2.912275855945368 7.7345e-09 au
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      9072 days (24.84 yr)  
   first obs. used      1996-03-12  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50252  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:10:36  

Additional Information
 Earth MOID = .943418 au 
 Jupiter MOID = 2.47428 au 
 T_jup = 3.479 
[ 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 16.1   n/a MPO385351  

85864 (1999 BJ7)          Discovered 1999-Jan-21 by Klet at Klet
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 BJ7 = 2001 QZ290 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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