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JPL Small-Body Database Browser
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66590 (1999 RD169)
Classification: Main-belt Asteroid          SPK-ID: 2066590
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .284724459744218 4.8464e-08  
a 2.624346013548795 1.1073e-08 au
q 1.877130512659223 1.2772e-07 au
i 2.386925312982133 4.4124e-06 deg
node 314.5512024680323 0.00012101 deg
peri 62.86604428648683 0.00012114 deg
M 301.900445140162 7.2738e-06 deg
tp 2459251.111140995980
(2021-Feb-05.61114100)
3.2276e-05 TDB
period 1552.852013689327
4.25
9.8282e-06
2.691e-08
d
yr
n .231831492522393 1.4673e-09 deg/d
Q 3.371561514438369 1.4226e-08 au
  Orbit Determination Parameters
   # obs. used (total)      665  
   data-arc span      14820 days (40.57 yr)  
   first obs. used      1978-11-02  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:59:45  

Additional Information
 Earth MOID = .880349 au 
 Jupiter MOID = 2.10605 au 
 T_jup = 3.343 
[ 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 15.3   n/a MPO436246  

66590 (1999 RD169)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RD169 = 1978 VB12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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