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JPL Small-Body Database Browser
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193960 (2001 RG81)
Classification: Main-belt Asteroid          SPK-ID: 2193960
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635369749020416 3.7451e-08  
a 2.339560773625593 8.5691e-09 au
q 1.956956082107383 8.7508e-08 au
i 3.764466405414007 4.3008e-06 deg
node 221.2910234256994 6.8417e-05 deg
peri 166.0564361907474 7.0098e-05 deg
M 64.99051170234407 1.4263e-05 deg
tp 2458764.535114599525
(2019-Oct-08.03511460)
5.1508e-05 TDB
period 1307.073240679027
3.58
7.1811e-06
1.966e-08
d
yr
n .2754245047607121 1.5132e-09 deg/d
Q 2.722165465143802 9.9705e-09 au
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      6652 days (18.21 yr)  
   first obs. used      2001-09-11  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49138  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:59:39  

Additional Information
 Earth MOID = .961845 au 
 Jupiter MOID = 2.72142 au 
 T_jup = 3.544 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO503021  

193960 (2001 RG81)          Discovered 2001-Sep-14 by NEAT at Palomar
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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