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13972 (1991 UN3)
Classification: Main-belt Asteroid          SPK-ID: 2013972
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09733401626905894 6.1379e-08  
a 2.294389634662252 1.2009e-08 AU
q 2.071067476634477 1.4307e-07 AU
i 4.562074014812567 5.8268e-06 deg
node 84.26182391062466 6.8662e-05 deg
peri 304.9592554023903 7.4289e-05 deg
M 249.6969223527723 3.0136e-05 deg
tp 2457389.441526403693
(2016-Jan-01.94152640)
0.00010733 JED
period 1269.40201934473
3.48
9.9664e-06
2.729e-08
d
yr
n .2835980993521922 2.2266e-09 deg/d
Q 2.517711792690029 1.3178e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1049  
   data-arc span      8689 days (23.79 yr)  
   first obs. used      1991-10-31  
   last obs. used      2015-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54152  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:40:07  

Additional Information
 Earth MOID = 1.08012 AU 
 T_jup = 3.585 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO279663  

13972 (1991 UN3)          Discovered 1991-Oct-31 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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