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1945 Wesselink (1930 OL)
Classification: Main-belt Asteroid          SPK-ID: 2001945
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1811188717473174 3.6057e-08  
a 2.554228220612654 8.4065e-09 au
q 2.091609287110132 9.3887e-08 au
i 4.227294351817808 3.524e-06 deg
node 142.5848838378317 4.7287e-05 deg
peri 194.3544582378415 4.8106e-05 deg
M 338.2234417027896 1.0262e-05 deg
tp 2459090.693391277625
(2020-Aug-29.19339128)
4.2655e-05 TDB
period 1491.03547111503
4.08
7.361e-06
2.015e-08
d
yr
n .2414429481887401 1.192e-09 deg/d
Q 3.016847154115176 9.9291e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2791  
   data-arc span      32787 days (89.77 yr)  
   first obs. used      1930-07-22  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47065  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:32:36  

Additional Information
 Earth MOID = 1.08243 au 
 Jupiter MOID = 2.36336 au 
 T_jup = 3.411 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456300.5 (2013-Jan-08.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1788085363916549 3.5955e-08  
q 2.097877834034458 9.3374e-08 au
tp 2456110.337316326130
(2012-Jul-01.83731633)
4.1276e-05 TDB
node 142.7052368133721 4.7457e-05 deg
peri 194.5920491037057 4.8307e-05 deg
i 4.218498260267546 3.5164e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2791  
   data-arc span      32787 days (89.77 yr)  
   first obs. used      1930-07-22  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47065  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:32:36  

Additional Information
 Jupiter MOID = 2.36336 au 
 T_jup = 3.411 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.292786628329067E-15 -3.34883923914649E-15 5.594483542727528E-13 4.691259279536532E-15 1.206824858419548E-13 4.729978738458316E-16
q -3.34883923914649E-15 8.718660526186352E-15 -1.434460017801122E-12 -1.220301743907018E-14 -3.086617188396389E-13 -1.116640798556711E-15
tp 5.594483542727528E-13 -1.434460017801122E-12 1.703732973949464E-9 -1.436690536259372E-12 3.87999212794425E-10 5.86646480709099E-13
node 4.691259279536532E-15 -1.220301743907018E-14 -1.436690536259372E-12 2.252190191825562E-9 -2.246139640732446E-9 5.446317736844577E-11
peri 1.206824858419548E-13 -3.086617188396389E-13 3.87999212794425E-10 -2.246139640732446E-9 2.333572995036669E-9 -5.419457434841396E-11
i 4.729978738458316E-16 -1.116640798556711E-15 5.86646480709099E-13 5.446317736844577E-11 -5.419457434841396E-11 1.23653388879608E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO435715  
diameter diameter 7.195 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.5473 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Linville, D.; Jiang, H.; Michalik, D.; Wilson, S.; Ditteon, R. (2017) Minor Planet Bull. 44, 173-176.]
geometric albedo albedo 0.450   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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