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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1989201081488898 6.1416e-08  
a 2.271149185732954 1.4349e-08 AU
q 1.819371944084692 1.3802e-07 AU
i 4.947168421875194 6.3293e-06 deg
node 228.7003288365814 8.5752e-05 deg
peri 57.13764460759652 8.7542e-05 deg
M 56.1658417233032 1.9297e-05 deg
tp 2456805.454159951557
(2014-May-27.95415995)
6.6746e-05 JED
period 1250.163805313482
3.42
1.1848e-05
3.244e-08
d
yr
n .2879622642008332 2.7291e-09 deg/d
Q 2.722926427381216 1.7204e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      570  
   data-arc span      13969 days (38.25 yr)  
   first obs. used      1976-05-03  
   last obs. used      2014-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60478  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:49:38  

Additional Information
 Earth MOID = .810163 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 15.3 mag n/a MPO263605  

30812 (1990 OZ4)          Discovered 1990-Jul-25 by Holt, H. E. at Palomar (675)
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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