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74664 (1999 RW93)
Classification: Main-belt Asteroid          SPK-ID: 2074664
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1399697041290859 4.3284e-08  
a 2.412260404315824 1.4524e-08 au
q 2.074617029241429 1.037e-07 au
i 6.601460344057402 5.0765e-06 deg
node 143.1617330159663 3.7832e-05 deg
peri 174.6666312818899 4.1896e-05 deg
M 220.9240802303302 2.0487e-05 deg
tp 2459529.169370286284
(2021-Nov-10.66937029)
8.0667e-05 TDB
period 1368.468197932911
3.75
1.2359e-05
3.384e-08
d
yr
n .2630678597747356 2.3759e-09 deg/d
Q 2.749903779390219 1.6557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      7545 days (20.66 yr)  
   first obs. used      1999-08-22  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53638  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:07:33  

Additional Information
 Earth MOID = 1.06149 au 
 Jupiter MOID = 2.53519 au 
 T_jup = 3.496 
[ 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 16.1   n/a MPO468694  

74664 (1999 RW93)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RW93 = 2002 JR36 = 2003 US300 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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