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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2385153937942563 6.2353e-08  
a 2.210527196265872 1.1626e-08 AU
q 1.683282431555605 1.3921e-07 AU
i 2.850711099342796 7.0888e-06 deg
node 270.6543294099383 0.00012791 deg
peri 95.51228080885528 0.00012872 deg
M 16.70046620613438 1.5762e-05 deg
tp 2456944.811141650097
(2014-Oct-14.31114165)
5.2355e-05 JED
period 1200.444871329456
3.29
9.4703e-06
2.593e-08
d
yr
n .2998888233837103 2.3658e-09 deg/d
Q 2.73777196097614 1.4399e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      8364 days (22.90 yr)  
   first obs. used      1991-09-12  
   last obs. used      2014-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54296  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 15:51:46  

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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