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312897 (2011 UH285)
Classification: Main-belt Asteroid          SPK-ID: 2312897
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1800098305193413 9.0602e-08  
a 3.065090320025092 4.8037e-08 au
q 2.513343930990902 2.7844e-07 au
i 12.46516147678627 8.8597e-06 deg
node 135.3424159413477 4.0753e-05 deg
peri 200.8473978715948 4.7361e-05 deg
M 247.6871182176139 2.7602e-05 deg
tp 2459611.991481873535
(2022-Feb-01.49148187)
0.00015998 TDB
period 1960.03281173929
5.37
4.6077e-05
1.262e-07
d
yr
n .1836703946198451 4.3178e-09 deg/d
Q 3.616836709059283 5.6684e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      5457 days (14.94 yr)  
   first obs. used      2005-05-13  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:28:50  

Additional Information
 Earth MOID = 1.5072 au 
 Jupiter MOID = 1.76635 au 
 T_jup = 3.172 
[ 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 16.3   n/a MPO471275  

312897 (2011 UH285)          Discovered 2005-May-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 UH285 = 2005 NN51 = 2009 DV73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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