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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2293530817364307 3.9427e-08  
a 2.282559588674407 9.1786e-09 au
q 1.759047512764892 8.861e-08 au
i 8.271904251643404 6.0106e-06 deg
node 166.4503978169161 3.5888e-05 deg
peri 127.4488992338553 3.9338e-05 deg
M 94.70765469337059 1.9342e-05 deg
tp 2458869.129232049952
(2020-Jan-20.62923205)		 6.6562e-05 TDB
period 1259.596986624227
3.45		 7.5976e-06
2.08e-08		 d
yr
n .2858057012067132 1.7239e-09 deg/d
Q 2.806071664583922 1.1284e-08 au
   Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      9442 days (25.85 yr)  
   first obs. used      1995-03-28  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60626  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:44  

Additional Information
 Earth MOID = .756044 au 
 Jupiter MOID = 2.44754 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 16.82   n/a E2021B55  

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

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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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