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JPL Small-Body Database Browser
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266857 (2009 UH98)
Classification: Main-belt Asteroid          SPK-ID: 2266857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03033771304276644 5.3963e-08  
a 3.003833649663723 3.4538e-08 au
q 2.912704206372019 1.7257e-07 au
i 3.681770794687658 6.4038e-06 deg
node 192.5887711963805 7.875e-05 deg
peri 313.0799591799812 0.00012685 deg
M 198.565048880733 0.00010036 deg
tp 2459453.221689602291
(2021-Aug-26.72168960)
0.00053539 TDB
period 1901.569679480563
5.21
3.2796e-05
8.979e-08
d
yr
n .1893172802893757 3.2651e-09 deg/d
Q 3.094963092955427 3.5586e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      7704 days (21.09 yr)  
   first obs. used      1998-09-28  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53233  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 19:34:56  

Additional Information
 Earth MOID = 1.92566 au 
 Jupiter MOID = 1.88857 au 
 T_jup = 3.248 
[ 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 16.1   n/a MPO454983  

266857 (2009 UH98)          Discovered 2009-Oct-23 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 UH98 = 2007 LA5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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