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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1673804627473051 3.24e-08  
a 2.237206385566395 8.0926e-09 au
q 1.862741745489066 7.1588e-08 au
i 7.395447005413287 4.4451e-06 deg
node 24.45615500288033 3.2225e-05 deg
peri 211.4438662733221 3.6046e-05 deg
M 155.5803128492277 1.7319e-05 deg
tp 2458472.286323296595
(2018-Dec-19.78632330)
5.796e-05 TDB
period 1222.242841210291
3.35
6.6318e-06
1.816e-08
d
yr
n .2945404856235611 1.5981e-09 deg/d
Q 2.611671025643724 9.4471e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1242  
   data-arc span      8489 days (23.24 yr)  
   first obs. used      1996-10-07  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56678  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:52:10  

Additional Information
 Earth MOID = .856377 au 
 Jupiter MOID = 2.39536 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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