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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03913689201143211 8.785e-08  
a 1.524418072471157 9.3789e-09 AU
q 1.464757086988578 1.3939e-07 AU
i 16.74953827994266 8.937e-06 deg
node 347.3798408400747 1.8871e-05 deg
peri 48.28728541402045 0.0001221 deg
M 20.54858088426979 0.00011271 deg
tp 2456961.259557729619
(2014-Oct-30.75955773)
0.00021548 JED
period 687.4712807126883
1.88
6.3445e-06
1.737e-08
d
yr
n .5236582386784142 4.8327e-09 deg/d
Q 1.584079057953736 9.746e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      471  
   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      .55473  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 17:23:51  

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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