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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1228806937107387 8.5891e-08  
a 2.31532288858607 2.3886e-08 au
q 2.030814405872262 1.9341e-07 au
i 10.30237927454302 8.3022e-06 deg
node 34.03289549797813 4.2554e-05 deg
peri 330.8591127138399 5.1372e-05 deg
M 340.3597422313902 3.588e-05 deg
tp 2458670.703773622285
(2019-Jul-06.20377362)
0.00012883 TDB
period 1286.81399204525
3.52
1.9913e-05
5.452e-08
d
yr
n .2797607130676434 4.3293e-09 deg/d
Q 2.599831371299878 2.6821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      5705 days (15.62 yr)  
   first obs. used      2001-08-17  
   last obs. used      2017-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6429  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 05:45:33  

Additional Information
 Earth MOID = 1.03588 au 
 Jupiter MOID = 2.86719 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 16.6   n/a MPO348495  

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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