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JPL Small-Body Database Browser
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91446 (1999 RD19)
Classification: Main-belt Asteroid          SPK-ID: 2091446
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1136598387389762 4.8888e-08  
a 2.728051309265183 1.6886e-08 au
q 2.41798143738245 1.3132e-07 au
i 12.99590975690445 5.6976e-06 deg
node 346.2114258943138 2.0924e-05 deg
peri 248.0691479147775 3.1379e-05 deg
M 313.4767693840818 2.3862e-05 deg
tp 2459213.188786037910
(2020-Dec-29.68878604)
0.00010936 TDB
period 1645.800645397343
4.51
1.528e-05
4.183e-08
d
yr
n .2187385215863042 2.0309e-09 deg/d
Q 3.038121181147917 1.8805e-08 au
  Orbit Determination Parameters
   # obs. used (total)      786  
   data-arc span      7453 days (20.41 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52642  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:30:15  

Additional Information
 Earth MOID = 1.44394 au 
 Jupiter MOID = 2.06326 au 
 T_jup = 3.309 
[ 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 14.7   n/a MPO432452  

91446 (1999 RD19)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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