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115694 (2003 UT157)
Classification: Main-belt Asteroid          SPK-ID: 2115694
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07328140855926263 3.5836e-08  
a 3.149507071249851 1.9373e-08 au
q 2.918706756801304 1.1681e-07 au
i 4.130719627151747 4.0998e-06 deg
node 57.44657110659645 5.2911e-05 deg
peri 353.2452316414861 6.1235e-05 deg
M 16.25622611526607 2.8801e-05 deg
tp 2459108.310907639139
(2020-Sep-15.81090764)
0.00016351 TDB
period 2041.560754297301
5.59
1.8837e-05
5.157e-08
d
yr
n .176335678104231 1.627e-09 deg/d
Q 3.380307385698397 2.0793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      10276 days (28.13 yr)  
   first obs. used      1992-11-28  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51815  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:44:44  

Additional Information
 Earth MOID = 1.92842 au 
 Jupiter MOID = 1.91699 au 
 T_jup = 3.200 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.95   n/a MPCxxxxx  
rotation period rot_per 2.79 h n/a LCDB (Rev. 2020-October); 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

115694 (2003 UT157)          Discovered 2003-Oct-20 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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