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268418 (2005 UH391)
Classification: Main-belt Asteroid          SPK-ID: 2268418
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2428013104587066 8.3448e-08  
a 2.559977194440002 2.416e-08 au
q 1.938411376885567 2.0444e-07 au
i 13.55689155063205 1.7049e-05 deg
node 346.736204920101 4.8702e-05 deg
peri 64.32050360012194 7.2101e-05 deg
M 167.310942157088 4.2773e-05 deg
tp 2458305.196499996890
(2018-Jul-05.69650000)
0.00017847 TDB
period 1496.072263857702
4.10
2.1179e-05
5.798e-08
d
yr
n .2406300876614883 3.4064e-09 deg/d
Q 3.181543011994438 3.0026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      6350 days (17.39 yr)  
   first obs. used      2001-09-20  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53183  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:10:15  

Additional Information
 Earth MOID = .988941 au 
 Jupiter MOID = 2.41607 au 
 T_jup = 3.356 
[ 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 17.4   n/a MPO470848  

268418 (2005 UH391)          Discovered 2005-Oct-30 by Mt. Lemmon Survey at Mount Lemmon
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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