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266867 (2009 UN141)
Classification: Main-belt Asteroid          SPK-ID: 2266867
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1099939458601767 7.8603e-08  
a 3.194199491173145 8.5211e-08 au
q 2.842856885274442 2.4354e-07 au
i 16.42253813985027 8.5278e-06 deg
node 263.3917509285193 3.0091e-05 deg
peri 228.920561402674 5.6749e-05 deg
M 223.2783355624445 4.0661e-05 deg
tp 2459792.410893516481
(2022-Jul-31.91089352)
0.00023284 TDB
period 2085.170063125881
5.71
8.3439e-05
2.284e-07
d
yr
n .1726477884783764 6.9086e-09 deg/d
Q 3.545542097071847 9.4584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      4818 days (13.19 yr)  
   first obs. used      2006-04-19  
   last obs. used      2019-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61633  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:59  

Additional Information
 Earth MOID = 1.88679 au 
 Jupiter MOID = 1.74433 au 
 T_jup = 3.123 
[ 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 15.1   n/a MPO401983  
diameter diameter 4.277 km 0.755 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266867 (2009 UN141)          Discovered 2009-Oct-16 by CSS at Catalina
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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