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359857 (2011 UN400)
Classification: Main-belt Asteroid          SPK-ID: 2359857
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03204693402283021 1.3049e-07  
a 2.725225439955982 6.8397e-08 au
q 2.637890320084375 4.0306e-07 au
i 6.946333840573367 8.5636e-06 deg
node 47.60699510758901 8.7851e-05 deg
peri 283.1332060675559 0.00018091 deg
M 42.19616546931126 0.00015274 deg
tp 2458807.892779307553
(2019-Nov-20.39277931)
0.00070078 TDB
period 1643.244088131893
4.50
6.1863e-05
1.694e-07
d
yr
n .2190788347270201 8.2476e-09 deg/d
Q 2.81256055982759 7.0589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      93  
   data-arc span      4280 days (11.72 yr)  
   first obs. used      2007-12-05  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48461  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:45:09  

Additional Information
 Earth MOID = 1.63833 au 
 Jupiter MOID = 2.28635 au 
 T_jup = 3.345 
[ 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 16.9   n/a MPO494871  

359857 (2011 UN400)          Discovered 2007-Dec-05 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2011 UN400 = 2007 YQ40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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