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26318 (1998 UC20)
Classification: Main-belt Asteroid          SPK-ID: 2026318
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2198450519008877 3.4281e-08  
a 2.385527314907381 7.2947e-09 au
q 1.861080938550583 8.1093e-08 au
i 2.921175572261018 3.4344e-06 deg
node 49.37735846426656 7.7528e-05 deg
peri 267.0289817416866 7.7898e-05 deg
M 8.040344885005291 7.6249e-06 deg
tp 2458970.442891809333
(2020-Apr-30.94289181)
2.8467e-05 TDB
period 1345.78293635387
3.68
6.1729e-06
1.69e-08
d
yr
n .2675022771319631 1.227e-09 deg/d
Q 2.90997369126418 8.8984e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1311  
   data-arc span      8620 days (23.60 yr)  
   first obs. used      1997-04-11  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54879  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 20:50:37  

Additional Information
 Earth MOID = .850426 au 
 Jupiter MOID = 2.3955 au 
 T_jup = 3.501 
[ 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 15.4   n/a MPO435946  
diameter diameter 2.104 km 0.627 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.303   0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26318 (1998 UC20)          Discovered 1998-Oct-28 by Korlevic, K. at Visnjan
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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