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121514 (1999 UJ7)
Classification: Mars-crossing Asteroid          SPK-ID: 2121514
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0391915218459971 1.1168e-07  
a 1.524536835561663 9.9768e-09 AU
q 1.464787916865721 1.7739e-07 AU
i 16.74920127536559 1.1993e-05 deg
node 347.3808667424441 2.0187e-05 deg
peri 48.17891279451204 0.00013864 deg
M 275.9266574664965 0.00013892 deg
tp 2456961.068785875944
(2014-Oct-30.56878588)
0.00026546 JED
period 687.5516206852899
1.88
6.7492e-06
1.848e-08
d
yr
n .5235970495439808 5.1398e-09 deg/d
Q 1.584285754257605 1.0368e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      21043 days (57.61 yr)  
   first obs. used      1955-03-23  
   last obs. used      2012-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5696  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 13:39:05  

Additional Information
 Earth MOID = .474434 AU 
 T_jup = 4.449 
[ 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 16.9 mag n/a MPO245024  

121514 (1999 UJ7)          Discovered 1999-Oct-30 by LINEAR at Socorro (704)
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1999 UJ7 = 2002 AC180 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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