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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03932055383721523 8.7667e-08  
a 1.524411043186022 9.3581e-09 au
q 1.46447035669238 1.3909e-07 au
i 16.75043874216628 8.8985e-06 deg
node 347.3771417101992 1.8843e-05 deg
peri 48.35771475235415 0.00012141 deg
M 229.9276599484358 0.00011071 deg
tp 2457648.889943621963
(2016-Sep-17.38994362)
0.00020993 JED
period 687.4665256922274
1.88
6.3303e-06
1.733e-08
d
yr
n .5236618606811538 4.822e-09 deg/d
Q 1.584351729679663 9.726e-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 = .47372 au 
 Jupiter MOID = 3.49473 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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