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13971 (1991 UF1)
Classification: Main-belt Asteroid          SPK-ID: 2013971
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2089439134099278 2.9657e-08  
a 2.37787924100114 6.7368e-09 au
q 1.881035846770133 7.3023e-08 au
i 3.401398343001723 3.5867e-06 deg
node 93.28519975644895 6.3924e-05 deg
peri 308.4430041004956 6.5011e-05 deg
M 337.9151277316139 1.144e-05 deg
tp 2459282.662852990688
(2021-Mar-09.16285299)
4.2724e-05 TDB
period 1339.316194234408
3.67
5.6917e-06
1.558e-08
d
yr
n .2687938826915973 1.1423e-09 deg/d
Q 2.874722635232147 8.1445e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1499  
   data-arc span      10707 days (29.31 yr)  
   first obs. used      1991-10-18  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50098  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:14:23  

Additional Information
 Earth MOID = .890929 au 
 Jupiter MOID = 2.53566 au 
 T_jup = 3.508 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.18   n/a E2021B10  

13971 (1991 UF1)          Discovered 1991-Oct-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 UF1 = 1993 FR31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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