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30820 (1990 RU2)
Classification: Main-belt Asteroid          SPK-ID: 2030820
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1723782236096846 6.5904e-08  
a 2.336833948167387 1.3372e-08 au
q 1.934014663311487 1.5375e-07 au
i 6.076735762055898 8.2593e-06 deg
node 348.7757308873282 4.2572e-05 deg
peri 330.4260166373368 4.73e-05 deg
M 114.3232245759803 1.9195e-05 deg
tp 2457186.145393429185
(2015-Jun-12.64539343)
6.9971e-05 JED
period 1304.788759403432
3.57
1.12e-05
3.066e-08
d
yr
n .275906730040039 2.3683e-09 deg/d
Q 2.739653233023287 1.5678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      9278 days (25.40 yr)  
   first obs. used      1990-09-16  
   last obs. used      2016-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57439  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 17:05:01  

Additional Information
 Earth MOID = .923462 au 
 Jupiter MOID = 2.56266 au 
 T_jup = 3.539 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO358916  

30820 (1990 RU2)          Discovered 1990-Sep-15 by Holt, H. E. at Palomar
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 RU2 = 2000 JF24 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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