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268390 (2005 UN129)
Classification: Main-belt Asteroid          SPK-ID: 2268390
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09034409945671336 6.039e-08  
a 2.638156411058327 2.1143e-08 au
q 2.399814545875307 1.5401e-07 au
i 12.14445469375023 5.2566e-06 deg
node 40.05815445879016 2.0292e-05 deg
peri 40.77495656082232 3.3575e-05 deg
M 159.9106917694293 2.6497e-05 deg
tp 2458505.276828113973
(2019-Jan-21.77682811)
0.00011277 TDB
period 1565.12575306623
4.29
1.8815e-05
5.151e-08
d
yr
n .2300134665184096 2.7651e-09 deg/d
Q 2.876498276241346 2.3053e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      6261 days (17.14 yr)  
   first obs. used      2003-04-04  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .616  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:23:37  

Additional Information
 Earth MOID = 1.42644 au 
 Jupiter MOID = 2.4013 au 
 T_jup = 3.359 
[ 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 16.62   n/a E2021B55  

268390 (2005 UN129)          Discovered 2005-Oct-24 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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