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5486 (1991 UT2)
Classification: Main-belt Asteroid          SPK-ID: 2005486
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06329889190583779 5.1538e-08  
a 2.603463434107637 2.2483e-08 au
q 2.438667083611256 1.3368e-07 au
i 10.19793610743691 6.7591e-06 deg
node 63.73914857344997 3.3916e-05 deg
peri 222.861177972884 7.992e-05 deg
M 78.91074262606814 7.8997e-05 deg
tp 2457264.174899877718
(2015-Aug-29.67489988)
0.00033463 JED
period 1534.354284533419
4.20
1.9875e-05
5.441e-08
d
yr
n .2346263855935151 3.0392e-09 deg/d
Q 2.768259784604017 2.3906e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1074  
   data-arc span      21874 days (59.89 yr)  
   first obs. used      1955-03-13  
   last obs. used      2015-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50879  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:59:04  

Additional Information
 Earth MOID = 1.4323 au 
 Jupiter MOID = 2.311 au 
 T_jup = 3.388 
[ 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 12.6 mag n/a MPO279572  
rotation period rot_per 17.90 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Folberth, J.; Casimir, S.; Dou, Y.; Evans, D; et al. (2012) Minor Planet Bul. 39, 51-55.]

5486 (1991 UT2)          Discovered 1991-Oct-31 by Ueda and Kaneda at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 UT2 = 1974 WP1 = 1977 KQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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