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JPL Small-Body Database Browser
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74661 (1999 RN90)
Classification: Main-belt Asteroid          SPK-ID: 2074661
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1637776867939798 4.4231e-08  
a 2.212596058298924 8.5909e-09 au
q 1.850222194061249 9.6068e-08 au
i 4.284067794142802 5.2459e-06 deg
node 43.93890950587169 6.1452e-05 deg
peri 314.0060476875666 6.3544e-05 deg
M 344.1193324791886 1.6596e-05 deg
tp 2458653.529542586364
(2019-Jun-19.02954259)
5.5514e-05 TDB
period 1202.130534253245
3.29
7.0013e-06
1.917e-08
d
yr
n .2994683104224031 1.7441e-09 deg/d
Q 2.5749699225366 9.9979e-09 au
  Orbit Determination Parameters
   # obs. used (total)      673  
   data-arc span      7914 days (21.67 yr)  
   first obs. used      1998-03-29  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55304  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:49:14  

Additional Information
 Earth MOID = .848852 au 
 Jupiter MOID = 2.86767 au 
 T_jup = 3.635 
[ 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 16.0   n/a MPO400702  

74661 (1999 RN90)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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