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30812 (1990 OZ4)
Classification: Main-belt Asteroid          SPK-ID: 2030812
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1986724984697286 6.0307e-08  
a 2.271265606085676 1.2409e-08 au
q 1.820027593436273 1.3448e-07 au
i 4.947321113923582 4.6936e-06 deg
node 228.6864668650386 7.8291e-05 deg
peri 57.04866994864366 7.9475e-05 deg
M 229.0927555297849 1.4109e-05 deg
tp 2458055.133562936595
(2017-Oct-28.63356294)
4.9635e-05 JED
period 1250.259932668686
3.42
1.0246e-05
2.805e-08
d
yr
n .2879401239641249 2.3597e-09 deg/d
Q 2.72250361873508 1.4874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      722  
   data-arc span      14548 days (39.83 yr)  
   first obs. used      1976-05-03  
   last obs. used      2016-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61345  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 17:05:00  

Additional Information
 Earth MOID = .809235 au 
 Jupiter MOID = 2.43329 au 
 T_jup = 3.581 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4 mag n/a MPO358916  

30812 (1990 OZ4)          Discovered 1990-Jul-25 by Holt, H. E. at Palomar
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 OZ4 = 1976 JX4 = 2000 HC14 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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