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85193 (1991 RD19)
Classification: Main-belt Asteroid          SPK-ID: 2085193
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .238515418181798 5.9226e-08  
a 2.210527202046651 9.5488e-09 AU
q 1.683282382048254 1.3383e-07 AU
i 2.850713575633176 4.5953e-06 deg
node 270.6543622343241 0.00012246 deg
peri 95.51225502554627 0.00012308 deg
M 16.70045538084853 1.0054e-05 deg
tp 2456944.811177529312
(2014-Oct-14.31117753)
3.3507e-05 JED
period 1200.444876038405
3.29
7.7783e-06
2.13e-08
d
yr
n .2998888222073455 1.9431e-09 deg/d
Q 2.737772022045048 1.1826e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      8446 days (23.12 yr)  
   first obs. used      1991-09-12  
   last obs. used      2014-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54113  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 15:27:53  

Additional Information
 Earth MOID = .684852 AU 
 T_jup = 3.618 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0 mag n/a MPO314009  

85193 (1991 RD19)          Discovered 1991-Sep-14 by Holt, H. E. at Palomar (675)
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1991 RD19 = 2001 SV109 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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