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JPL Small-Body Database Browser
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245138 (2004 RU172)
Classification: Main-belt Asteroid          SPK-ID: 2245138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0711104195289514 5.5968e-08  
a 2.291590851281406 1.5251e-08 au
q 2.128634864458078 1.2514e-07 au
i 5.316581985786016 5.7722e-06 deg
node 249.6217603913269 8.2396e-05 deg
peri 176.2313114217161 9.9226e-05 deg
M 119.6538851668378 5.5874e-05 deg
tp 2458579.358198597141
(2019-Apr-05.85819860)
0.00019572 TDB
period 1267.080030820833
3.47
1.2649e-05
3.463e-08
d
yr
n .284117807275983 2.8363e-09 deg/d
Q 2.454546838104733 1.6336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      6627 days (18.14 yr)  
   first obs. used      2001-12-07  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53219  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:40:29  

Additional Information
 Earth MOID = 1.14226 au 
 Jupiter MOID = 2.74106 au 
 T_jup = 3.589 
[ 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 17.6   n/a MPO454804  

245138 (2004 RU172)          Discovered 2004-Sep-09 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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