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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08208424120648414 8.2489e-08  
a 3.167221286881485 4.0388e-08 AU
q 2.907242330814794 2.7117e-07 AU
i 7.076698845681531 8.3292e-06 deg
node 38.65066062762816 5.0614e-05 deg
peri 338.9394907798277 6.4426e-05 deg
M 265.0885282067271 4.2258e-05 deg
tp 2457543.290509575763
(2016-Jun-03.79050958)
0.00024591 JED
period 2058.808906397386
5.64
3.9381e-05
1.078e-07
d
yr
n .174858384807528 3.3447e-09 deg/d
Q 3.427200242948176 4.3704e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      5747 days (15.73 yr)  
   first obs. used      1999-10-01  
   last obs. used      2015-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53773  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 14:15:25  

Additional Information
 Earth MOID = 1.91068 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 13.0 mag n/a MPO267975  
rotation period rot_per 16.2584 h n/a LCDB (Rev. 2015-July); 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., in press.]

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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