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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03913673890395396 1.4415e-07  
a 1.524418089161005 1.5409e-08 AU
q 1.464757336425046 2.3238e-07 AU
i 16.74953451241204 1.1823e-05 deg
node 347.3798415727616 2.0041e-05 deg
peri 48.28736056490965 0.00013406 deg
M 20.5484802262562 0.00013364 deg
tp 2456961.259749306011
(2014-Oct-30.75974931)
0.00025516 JED
period 687.4712920026925
1.88
1.0424e-05
2.854e-08
d
yr
n .5236582300786314 7.9398e-09 deg/d
Q 1.584078841896964 1.6012e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      380  
   data-arc span      21661 days (59.30 yr)  
   first obs. used      1955-03-23  
   last obs. used      2014-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56265  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 16:23:03  

Additional Information
 Earth MOID = .476039 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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