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1945 Wesselink (1930 OL)
Classification: Main-belt Asteroid          SPK-ID: 2001945
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1809984987691809 4.258e-08  
a 2.553222269168863 1.1004e-08 AU
q 2.091092871425257 1.0941e-07 AU
i 4.225885541456255 4.4762e-06 deg
node 142.631543409934 6.0785e-05 deg
peri 194.7926053547558 6.192e-05 deg
M 214.5853987238337 1.3795e-05 deg
tp 2457602.417372987709
(2016-Aug-01.91737299)
5.8119e-05 JED
period 1490.154718810148
4.08
9.6338e-06
2.638e-08
d
yr
n .2415856524532239 1.5618e-09 deg/d
Q 3.015351666912469 1.2996e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1701  
   data-arc span      30982 days (84.82 yr)  
   first obs. used      1930-07-22  
   last obs. used      2015-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51698  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:37:13  

Additional Information
 Earth MOID = 1.08257 AU 
 T_jup = 3.412 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO253374  
rotation period rot_per 3.5457 h n/a LCDB (Rev. 2015-July); 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., in press.]

1945 Wesselink (1930 OL)          Discovered 1930-Jul-22 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 OL = 1934 NL = 1970 GA2 = 1974 HM3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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