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26222 (1997 WC45)
Classification: Main-belt Asteroid          SPK-ID: 2026222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1168015614725651 5.4861e-08  
a 2.971781498045668 1.6341e-08 au
q 2.624672778718655 1.6548e-07 au
i 9.335131616665539 5.0412e-06 deg
node 233.4476801372745 2.9913e-05 deg
peri 110.402142372778 3.5049e-05 deg
M 207.0726295362957 1.9869e-05 deg
tp 2459795.388948434859
(2022-Aug-03.88894843)
0.00010512 TDB
period 1871.21520868932
5.12
1.5434e-05
4.226e-08
d
yr
n .1923883465291839 1.5868e-09 deg/d
Q 3.318890217372681 1.8249e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1572  
   data-arc span      12330 days (33.76 yr)  
   first obs. used      1986-09-09  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50122  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:30:11  

Additional Information
 Earth MOID = 1.63626 au 
 Jupiter MOID = 2.13653 au 
 T_jup = 3.232 
[ 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 13.4   n/a MPO435945  
diameter diameter 7.132 km 0.309 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.200   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26222 (1997 WC45)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WC45 = 1986 RN12 = 1999 CA65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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