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91849 (1999 UK6)
Classification: Main-belt Asteroid          SPK-ID: 2091849
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08193672309056199 7.7415e-08  
a 3.167611703821014 3.7995e-08 au
q 2.908067980786608 2.5994e-07 au
i 7.076630952730186 7.5085e-06 deg
node 38.63776959020427 5.0541e-05 deg
peri 338.7983315695884 6.3231e-05 deg
M 335.1535667669664 3.9567e-05 deg
tp 2457542.620880025592
(2016-Jun-03.12088003)
0.00022717 JED
period 2059.189595921184
5.64
3.7049e-05
1.014e-07
d
yr
n .1748260581313558 3.1455e-09 deg/d
Q 3.427155426855419 4.1108e-08 au
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      5897 days (16.15 yr)  
   first obs. used      1999-10-01  
   last obs. used      2015-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54897  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 16:28:35  

Additional Information
 Earth MOID = 1.90989 au 
 Jupiter MOID = 2.02758 au 
 T_jup = 3.186 
[ 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 13.1 mag n/a MPO348077  
rotation period rot_per 16.2584 h n/a LCDB (Rev. 2015-December); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

91849 (1999 UK6)          Discovered 1999-Oct-28 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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