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8090 (1991 RO23)
Classification: Main-belt Asteroid          SPK-ID: 2008090
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 .1301333505114345 1.0653e-07  
a 3.173492498911564 4.3273e-08 AU
q 2.760515287205297 3.3684e-07 AU
i 15.967843753472 1.3047e-05 deg
node 8.021360114551737 2.6378e-05 deg
peri 353.0007449703235 3.9422e-05 deg
M 34.0178829409302 3.0701e-05 deg
tp 2456805.376569560682
(2014-May-27.87656956)
0.00017512 JED
period 2064.926705760297
5.65
4.2235e-05
1.156e-07
d
yr
n .1743403283979756 3.5659e-09 deg/d
Q 3.586469710617831 4.8904e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      703  
   data-arc span      15518 days (42.49 yr)  
   first obs. used      1972-04-09  
   last obs. used      2014-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48872  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:11:53  

Additional Information
 Earth MOID = 1.75894 AU 
 T_jup = 3.129 
[ 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 12.3 mag n/a MPO267740  

8090 (1991 RO23)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 RO23 = 1972 GU1 = 1989 GS5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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