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266870 (2009 UY154)
Classification: Main-belt Asteroid          SPK-ID: 2266870
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04105111380297199 6.3141e-08  
a 2.346792185965257 2.3981e-08 au
q 2.250453752867271 1.4775e-07 au
i 2.945673028384657 7.6714e-06 deg
node 242.5084088784871 0.00011024 deg
peri 291.5685504388371 0.00014059 deg
M 195.7101770157314 8.4772e-05 deg
tp 2459599.764481859011
(2022-Jan-20.26448186)
0.00030916 TDB
period 1313.138023710097
3.60
2.0128e-05
5.511e-08
d
yr
n .2741524451351031 4.2022e-09 deg/d
Q 2.443130619063242 2.4965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      5628 days (15.41 yr)  
   first obs. used      2002-11-13  
   last obs. used      2018-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59529  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:40:39  

Additional Information
 Earth MOID = 1.25599 au 
 Jupiter MOID = 2.52541 au 
 T_jup = 3.557 
[ 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 16.8   n/a MPO437228  

266870 (2009 UY154)          Discovered 2009-Oct-22 by CSS at Catalina
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 UY154 = 2005 QH3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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