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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03913691990550661 9.3991e-08  
a 1.524418069782622 9.8811e-09 AU
q 1.464757041883032 1.4946e-07 AU
i 16.74953748164533 1.0015e-05 deg
node 347.3798407616322 1.8972e-05 deg
peri 48.28727468301381 0.0001225 deg
M 20.54859540968604 0.00011349 deg
tp 2456961.259530095077
(2014-Oct-30.75953009)
0.00021696 JED
period 687.471278894003
1.88
6.6842e-06
1.83e-08
d
yr
n .5236582400637367 5.0914e-09 deg/d
Q 1.584079097682211 1.0268e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      21772 days (59.61 yr)  
   first obs. used      1955-03-23  
   last obs. used      2014-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56647  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 16:13:39  

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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