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JPL Small-Body Database Browser
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100636 (1997 UY26)
Classification: Main-belt Asteroid          SPK-ID: 2100636
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2477353097623174 5.9005e-08  
a 2.439468093006519 1.8184e-08 au
q 1.835125709330259 1.4962e-07 au
i 14.27692536272129 1.1477e-05 deg
node 38.61304225660917 2.6878e-05 deg
peri 42.27345218049694 4.1469e-05 deg
M 297.1977444633791 3.4763e-05 deg
tp 2459243.280544421472
(2021-Jan-28.78054442)
0.0001365 TDB
period 1391.685620921133
3.81
1.5561e-05
4.26e-08
d
yr
n .2586791115666784 2.8924e-09 deg/d
Q 3.043810476682779 2.2689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      545  
   data-arc span      7526 days (20.61 yr)  
   first obs. used      1997-10-26  
   last obs. used      2018-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55438  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:57:27  

Additional Information
 Earth MOID = .873463 au 
 Jupiter MOID = 2.35277 au 
 T_jup = 3.419 
[ 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 15.3   n/a MPO449611  
diameter diameter 2.323 km 0.397 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.437 h n/a LCDB (Rev. 2019-August); 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 0.327   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100636 (1997 UY26)          Discovered 1997-Oct-26 by Uppsala-DLR Trojan Survey at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 UY26 = 2001 TE116 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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