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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03913684632245343 1.2361e-07  
a 1.52441807729119 1.3093e-08 AU
q 1.464757161269075 1.9848e-07 AU
i 16.74953457691713 1.1561e-05 deg
node 347.379843166157 1.9662e-05 deg
peri 48.28730342784431 0.00012833 deg
M 20.54855365496583 0.00012385 deg
tp 2456961.259609541743
(2014-Oct-30.75960954)
0.00023658 JED
period 687.4712839732448
1.88
8.8572e-06
2.425e-08
d
yr
n .5236582361947943 6.7467e-09 deg/d
Q 1.584078993313305 1.3606e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      395  
   data-arc span      21741 days (59.52 yr)  
   first obs. used      1955-03-23  
   last obs. used      2014-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56326  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 17:36:29  

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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