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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09733404183665029 6.7808e-08  
a 2.29438963959434 1.313e-08 AU
q 2.071067422424488 1.5567e-07 AU
i 4.562076019553477 6.2763e-06 deg
node 84.26181530129779 6.996e-05 deg
peri 304.9592781678397 7.6775e-05 deg
M 249.6969044626044 3.5107e-05 deg
tp 2457389.441590740633
(2016-Jan-01.94159074)
0.00012539 JED
period 1269.402023437846
3.48
1.0897e-05
2.983e-08
d
yr
n .2835980984377459 2.4345e-09 deg/d
Q 2.517711856764192 1.4408e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1015  
   data-arc span      8278 days (22.66 yr)  
   first obs. used      1991-10-31  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54053  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:21:56  

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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