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JPL Small-Body Database Browser
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201746 (2003 UN276)
Classification: Main-belt Asteroid          SPK-ID: 2201746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1498229593849273 3.9867e-08  
a 2.960868597785381 2.4106e-08 au
q 2.517262502115275 1.2159e-07 au
i 6.79288645056929 5.8424e-06 deg
node 230.8254300569194 4.616e-05 deg
peri 227.2108409652145 5.3443e-05 deg
M 341.075717696996 2.5829e-05 deg
tp 2458698.323690973893
(2019-Aug-02.82369097)
0.000134 TDB
period 1860.917533713364
5.09
2.2726e-05
6.222e-08
d
yr
n .193452957198828 2.3625e-09 deg/d
Q 3.404474693455487 2.7718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      7628 days (20.88 yr)  
   first obs. used      1998-12-15  
   last obs. used      2019-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:22:38  

Additional Information
 Earth MOID = 1.54002 au 
 Jupiter MOID = 1.8249 au 
 T_jup = 3.239 
[ 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 15.2   n/a MPO418074  
diameter diameter 5.169 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 138.782 h n/a LCDB (Rev. 2019-January); 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.]
geometric albedo albedo 0.066   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201746 (2003 UN276)          Discovered 2003-Oct-29 by NEAT at Haleakala
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

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