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JPL Small-Body Database Browser
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193991 (2001 RA149)
Classification: Main-belt Asteroid          SPK-ID: 2193991
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230966637659235 8.5616e-08  
a 2.315804403915175 1.6647e-08 au
q 2.030736607858784 1.913e-07 au
i 10.30121385602214 7.1337e-06 deg
node 34.02917422723664 2.6476e-05 deg
peri 330.9043994916499 3.5298e-05 deg
M 92.19676265318574 2.2954e-05 deg
tp 2458670.841399131337
(2019-Jul-06.34139913)
8.2173e-05 TDB
period 1287.215438996958
3.52
1.388e-05
3.8e-08
d
yr
n .2796734634262343 3.0157e-09 deg/d
Q 2.600872199971566 1.8697e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      6734 days (18.44 yr)  
   first obs. used      2001-08-17  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55272  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:13:14  

Additional Information
 Earth MOID = 1.03661 au 
 Jupiter MOID = 2.86951 au 
 T_jup = 3.550 
[ 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  

193991 (2001 RA149)          Discovered 2001-Sep-10 by LONEOS at Anderson Mesa
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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