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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2533747319674411 7.0198e-08  
a 3.98614759899203 6.9607e-08 AU
q 2.976158519514766 2.9782e-07 AU
i 2.345514550315514 8.4339e-06 deg
node 352.0232437037668 0.00017368 deg
peri 27.9152940208994 0.00017459 deg
M 307.7422250813847 1.7948e-05 deg
tp 2457222.465460411084
(2015-Jul-18.96546041)
0.00015184 JED
period 2906.88928077337
7.96
7.6141e-05
2.085e-07
d
yr
n .1238437261374547 3.2439e-09 deg/d
Q 4.996136678469295 8.7244e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      8331 days (22.81 yr)  
   first obs. used      1991-09-13  
   last obs. used      2014-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51103  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:28:11  

Additional Information
 Earth MOID = 1.97764 AU 
 T_jup = 2.997 
[ 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 12.7 mag n/a PDS3 (MPC 36688)  

12307 (1991 UA)          Discovered 1991-Oct-18 by Ueda, S., Kaneda, H. at Kushiro (399)
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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