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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 | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976209468340305 5.2586e-08  
a 2.43196288661427 1.0632e-08 au
q 1.951356078296336 1.3259e-07 au
i 2.452854542359275 3.9246e-06 deg
node 90.23748330921089 0.00012271 deg
peri 247.75441243584 0.00012308 deg
M 352.4098749855568 1.2064e-05 deg
tp 2459029.706550699191
(2020-Jun-29.20655070)
4.6516e-05 TDB
period 1385.268125584377
3.79
9.0843e-06
2.487e-08
d
yr
n .2598774875067117 1.7042e-09 deg/d
Q 2.912569694932203 1.2733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      641  
   data-arc span      8477 days (23.21 yr)  
   first obs. used      1996-03-12  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56691  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:40:20  

Additional Information
 Earth MOID = .94379 au 
 Jupiter MOID = 2.47376 au 
 T_jup = 3.479 
[ 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 16.1   n/a MPO385351  

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

[ show close-approach data ]
Alternate Designations
 1999 BJ7 = 2001 QZ290 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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