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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03930206408074171 8.7648e-08  
a 1.524500456436781 9.366e-09 au
q 1.464584441806783 1.3907e-07 au
i 16.75033085083491 8.8986e-06 deg
node 347.3772357243187 1.8842e-05 deg
peri 48.25214091521178 0.00012149 deg
M 334.7577405310613 0.00011016 deg
tp 2457648.707597778767
(2016-Sep-17.20759778)
0.00021009 JED
period 687.5270108728473
1.88
6.3359e-06
1.735e-08
d
yr
n .5236157915351767 4.8254e-09 deg/d
Q 1.584416471066779 9.7341e-09 au
  Orbit Determination Parameters
   # obs. used (total)      477  
   data-arc span      21861 days (59.85 yr)  
   first obs. used      1955-03-23  
   last obs. used      2015-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55182  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 19:04:06  

Additional Information
 Earth MOID = .474668 au 
 Jupiter MOID = 3.49456 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
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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