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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2385154182608156 5.9233e-08  
a 2.210527202654706 9.6662e-09 AU
q 1.683282382336608 1.3386e-07 AU
i 2.850713019560271 4.9171e-06 deg
node 270.6543576816343 0.00012327 deg
peri 95.51226035714699 0.0001239 deg
M 16.70045428859793 1.0395e-05 deg
tp 2456944.811181148520
(2014-Oct-14.31118115)
3.463e-05 JED
period 1200.444876533718
3.29
7.8739e-06
2.156e-08
d
yr
n .2998888220836088 1.967e-09 deg/d
Q 2.737772022972804 1.1972e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      8420 days (23.05 yr)  
   first obs. used      1991-09-12  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53671  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 16:42:33  

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 15.9 mag n/a MPO259846  

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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