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134521 (1999 RU8)
Classification: Main-belt Asteroid          SPK-ID: 2134521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2294424289189235 4.7713e-08  
a 2.282506983603952 1.103e-08 au
q 1.758803037261456 1.1047e-07 au
i 8.272025224327608 7.7199e-06 deg
node 166.4513389397694 3.7103e-05 deg
peri 127.4318759861714 4.0625e-05 deg
M 37.5504973412645 1.9385e-05 deg
tp 2458869.119838311841
(2020-Jan-20.61983831)
6.7314e-05 TDB
period 1259.553442871778
3.45
9.13e-06
2.5e-08
d
yr
n .2858155817344288 2.0718e-09 deg/d
Q 2.806210929946449 1.3561e-08 au
  Orbit Determination Parameters
   # obs. used (total)      305  
   data-arc span      9254 days (25.34 yr)  
   first obs. used      1995-03-28  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63203  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:56:46  

Additional Information
 Earth MOID = .757723 au 
 Jupiter MOID = 2.44796 au 
 T_jup = 3.556 
[ 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 16.7   n/a MPO475172  

134521 (1999 RU8)          Discovered 1999-Sep-04 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1999 RU8 = 1999 RX72 = 2002 JF20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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