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12307 (1991 UA)
Classification: Outer Main-belt Asteroid          SPK-ID: 2012307
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2526538285448706 4.541e-08  
a 3.98237675654367 3.577e-08 au
q 2.976214022294807 1.8486e-07 au
i 2.345625684012229 5.4131e-06 deg
node 352.0153410710109 0.0001248 deg
peri 27.87906429696767 0.00012569 deg
M 46.9071513118937 1.09e-05 deg
tp 2457222.276506508945
(2015-Jul-18.77650651)
8.8259e-05 JED
period 2902.76543871585
7.95
3.911e-05
1.071e-07
d
yr
n .1240196659359634 1.6709e-09 deg/d
Q 4.988539490792531 4.4808e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      8962 days (24.54 yr)  
   first obs. used      1991-09-13  
   last obs. used      2016-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50812  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:13:50  

Additional Information
 Earth MOID = 1.97774 au 
 Jupiter MOID = .513995 au 
 T_jup = 2.998 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO347622  

12307 (1991 UA)          Discovered 1991-Oct-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 UA = 1995 FX15 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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