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115564 (2003 UC81)
Classification: Main-belt Asteroid          SPK-ID: 2115564
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06115364715982095 4.1576e-08  
a 2.923727407323257 1.9886e-08 au
q 2.744930813064312 1.2398e-07 au
i 13.81280955312203 4.5581e-06 deg
node 73.797797941676 1.8317e-05 deg
peri 226.5419408673586 4.7299e-05 deg
M 246.1310449393528 4.7036e-05 deg
tp 2459778.072596753756
(2022-Jul-17.57259675)
0.00024059 TDB
period 1826.012495860788
5.00
1.8629e-05
5.1e-08
d
yr
n .1971508961828297 2.0114e-09 deg/d
Q 3.102524001582201 2.1102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1058  
   data-arc span      8163 days (22.35 yr)  
   first obs. used      1998-11-13  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55585  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:56:45  

Additional Information
 Earth MOID = 1.74459 au 
 Jupiter MOID = 2.02712 au 
 T_jup = 3.233 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.25   n/a MPCxxxxx  
diameter diameter 4.444 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 24.8635 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.246   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115564 (2003 UC81)          Discovered 2003-Oct-16 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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