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85874 (1999 CJ4)
Classification: Main-belt Asteroid          SPK-ID: 2085874
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209802259337512 3.0403e-08  
a 2.245984622621297 8.5921e-09 au
q 1.974264895532841 6.8073e-08 au
i 7.011820430012227 3.6201e-06 deg
node 108.5267959603264 3.5138e-05 deg
peri 316.2481437938503 4.0226e-05 deg
M 195.5390694688587 1.9689e-05 deg
tp 2459562.153975218678
(2021-Dec-13.65397522)
6.8178e-05 TDB
period 1229.443554926484
3.37
7.055e-06
1.932e-08
d
yr
n .2928153948649773 1.6803e-09 deg/d
Q 2.517704349709752 9.6316e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1105  
   data-arc span      7407 days (20.28 yr)  
   first obs. used      1999-02-09  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53282  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:40:21  

Additional Information
 Earth MOID = .994902 au 
 Jupiter MOID = 2.73843 au 
 T_jup = 3.611 
[ 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 15.4   n/a MPO474744  

85874 (1999 CJ4)          Discovered 1999-Feb-09 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Alternate Designations
 1999 CJ4 = 2001 XQ62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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