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70260 (1999 RO91)
Classification: Main-belt Asteroid          SPK-ID: 2070260
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2236394987370237 3.9678e-08  
a 2.464720097804708 9.1154e-09 au
q 1.913511330604595 9.3984e-08 au
i 1.650285143631786 4.5233e-06 deg
node 130.5289054036731 0.00011036 deg
peri 283.0785261306439 0.00011098 deg
M 89.18166199348373 1.3112e-05 deg
tp 2458650.375180972620
(2019-Jun-15.87518097)
5.0184e-05 TDB
period 1413.350368588855
3.87
7.8406e-06
2.147e-08
d
yr
n .2547139110024348 1.413e-09 deg/d
Q 3.015928865004821 1.1154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      9019 days (24.69 yr)  
   first obs. used      1995-09-28  
   last obs. used      2020-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5229  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:01:27  

Additional Information
 Earth MOID = .925628 au 
 Jupiter MOID = 2.35331 au 
 T_jup = 3.452 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO453106  

70260 (1999 RO91)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RO91 = 1995 SA53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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