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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2386119300457054 9.0172e-08  
a 2.210809109031601 1.754e-08 AU
q 1.683283680562944 1.9298e-07 AU
i 2.850720231458498 8.2406e-06 deg
node 270.6578745897086 0.00014246 deg
peri 95.50235457300874 0.00014418 deg
M 316.735356764863 3.0418e-05 deg
tp 2456944.796541114583
(2014-Oct-14.29654111)
0.00010285 JED
period 1200.6745212003
3.29
1.4288e-05
3.912e-08
d
yr
n .2998314644339353 3.5681e-09 deg/d
Q 2.738334537500258 2.1725e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      7890 days (21.60 yr)  
   first obs. used      1991-09-12  
   last obs. used      2013-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55921  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-06 13:56:05  

Additional Information
 Earth MOID = .683412 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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