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215331 (2001 UW61)
Classification: Jupiter Trojan          SPK-ID: 2215331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08868953941549021 6.5446e-08  
a 5.168366793901218 1.687e-07 au
q 4.709986723419806 4.4743e-07 au
i 4.056932789287889 8.1746e-06 deg
node 226.9592492219857 8.6115e-05 deg
peri 71.44887855693094 0.00010035 deg
M 289.3884670097938 5.5984e-05 deg
tp 2459842.285726757607
(2022-Sep-19.78572676)
0.00068424 TDB
period 4291.690730957092
11.75
0.00021013
5.753e-07
d
yr
n .08388302479561856 4.1071e-09 deg/d
Q 5.626746864382632 1.8367e-07 au
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      7150 days (19.58 yr)  
   first obs. used      2000-09-29  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60266  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:17:09  

Additional Information
 Earth MOID = 3.6971 au 
 Jupiter MOID = .274551 au 
 T_jup = 2.987 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1   n/a MPO437030  
diameter diameter 10.704 km 1.067 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.089   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

215331 (2001 UW61)          Discovered 2001-Oct-17 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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