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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03016669271199883 5.3865e-08  
a 3.0049584475989 3.4534e-08 au
q 2.914308789497859 1.7248e-07 au
i 3.681094327601789 6.4025e-06 deg
node 192.586644468264 7.8764e-05 deg
peri 312.404130103703 0.00012743 deg
M 274.9562975922843 0.00010152 deg
tp 2459449.964909902912
(2021-Aug-23.46490990)
0.00053931 TDB
period 1902.637855408892
5.21
3.2799e-05
8.98e-08
d
yr
n .1892109940820204 3.2617e-09 deg/d
Q 3.095608105699941 3.5576e-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 = 1.92697 au 
 Jupiter MOID = 1.8871 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 16.2   n/a MPO503217  

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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