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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06284774096000241 5.1644e-08  
a 2.602768865573702 2.2654e-08 AU
q 2.439190722131367 1.3366e-07 AU
i 10.19874980089491 6.777e-06 deg
node 63.75102495083433 3.3944e-05 deg
peri 222.9241951686541 8.0546e-05 deg
M 251.0916453563342 7.8612e-05 deg
tp 2457264.492037297578
(2015-Aug-29.99203730)
0.00033771 JED
period 1533.740308295467
4.20
2.0024e-05
5.482e-08
d
yr
n .2347203095940593 3.0644e-09 deg/d
Q 2.766347009016037 2.4078e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1064  
   data-arc span      21646 days (59.26 yr)  
   first obs. used      1955-03-13  
   last obs. used      2014-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50781  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:12:06  

Additional Information
 Earth MOID = 1.4326 AU 
 T_jup = 3.389 
[ 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 Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) 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 (399)
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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