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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03913689327080142 8.8473e-08  
a 1.524418072337408 9.4237e-09 AU
q 1.464757084940258 1.4041e-07 AU
i 16.7495381615453 9.0584e-06 deg
node 347.3798408162563 1.8899e-05 deg
peri 48.28728516919813 0.0001221 deg
M 20.54858129240563 0.00011274 deg
tp 2456961.259556955390
(2014-Oct-30.75955696)
0.00021553 JED
period 687.4712806222122
1.88
6.3747e-06
1.745e-08
d
yr
n .5236582387473312 4.8557e-09 deg/d
Q 1.584079059734558 9.7925e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      21829 days (59.76 yr)  
   first obs. used      1955-03-23  
   last obs. used      2014-12-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57556  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 07:15:49  

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 17.0 mag n/a MPO320380  

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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