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JPL Small-Body Database Browser
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74782 (1999 RQ246)
Classification: Main-belt Asteroid          SPK-ID: 2074782
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1675990417464543 3.2601e-08  
a 2.23752625166777 8.1771e-09 au
q 1.862518996005716 7.2179e-08 au
i 7.395669442579783 4.4458e-06 deg
node 24.46173003978151 3.2425e-05 deg
peri 211.4890980514055 3.6219e-05 deg
M 37.69835779458309 1.7121e-05 deg
tp 2458472.482138801145
(2018-Dec-19.98213880)
5.7941e-05 TDB
period 1222.504977079139
3.35
6.7015e-06
1.835e-08
d
yr
n .2944773287223153 1.6143e-09 deg/d
Q 2.612533507329824 9.5476e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1231  
   data-arc span      8450 days (23.13 yr)  
   first obs. used      1996-10-07  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56824  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:49:32  

Additional Information
 Earth MOID = .856143 au 
 Jupiter MOID = 2.39515 au 
 T_jup = 3.608 
[ 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 15.1   n/a MPO229461  

74782 (1999 RQ246)          Discovered 1999-Sep-07 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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