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42479 Tolik (1981 SE7)
Classification: Main-belt Asteroid          SPK-ID: 2042479
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1188761395055104 1.8217e-08  
a 2.672793489220212 1.0203e-08 au
q 2.35506211752625 4.9191e-08 au
i 6.545915646648751 9.6257e-07 deg
node 67.391703905488 3.0882e-06 deg
peri 269.9418041042438 1.0548e-05 deg
M 63.54060005043984 8.1531e-06 deg
tp 2459114.794487824728
(2020-Sep-22.29448782)
3.6159e-05 TDB
period 1596.050152226976
4.37
9.1393e-06
2.502e-08
d
yr
n .2255568219442794 1.2916e-09 deg/d
Q 2.990524860914174 1.1416e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2141  
   data-arc span      14549 days (39.83 yr)  
   first obs. used      1981-09-28  
   last obs. used      2021-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45697  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 23:29:35  

Additional Information
 Earth MOID = 1.35634 au 
 Jupiter MOID = 2.37229 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457556.5 (2016-Jun-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1200264949045835 1.8365e-08  
q 2.352528430346764 4.983e-08 au
tp 2457521.586938562464
(2016-May-13.08693856)
3.7184e-05 TDB
node 67.42305010045114 3.0851e-06 deg
peri 270.6859820902479 1.042e-05 deg
i 6.549887578437288 9.6305e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2141  
   data-arc span      14549 days (39.83 yr)  
   first obs. used      1981-09-28  
   last obs. used      2021-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45697  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 23:29:35  

Additional Information
 Jupiter MOID = 2.37229 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.372861933457655E-16 -8.999307050619099E-16 3.082470989456115E-13 -5.38406860490369E-15 1.115520201591162E-13 6.768755761224447E-15
q -8.999307050619099E-16 2.483068689958083E-15 -9.210808127528887E-13 1.52869433272918E-14 -3.24959282449295E-13 -1.816538513161962E-14
tp 3.082470989456115E-13 -9.210808127528887E-13 1.38261357820853E-9 -7.095842056429647E-12 3.643904841840465E-10 -1.293147955203648E-13
node -5.38406860490369E-15 1.52869433272918E-14 -7.095842056429647E-12 9.517622375493111E-12 -1.132521768103732E-11 -2.933513774345568E-13
peri 1.115520201591162E-13 -3.24959282449295E-13 3.643904841840465E-10 -1.132521768103732E-11 1.085704119496507E-10 9.27505540583797E-13
i 6.768755761224447E-15 -1.816538513161962E-14 -1.293147955203648E-13 -2.933513774345568E-13 9.27505540583797E-13 9.274563527603563E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.71   n/a E2021B10  
diameter diameter 11.019 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.085   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

42479 Tolik           Discovered 1981 Sept. 28 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Anatolij (Tolik) Leonidovich Zhuravlev (1941-2007), husband of the discoverer, was a computer expert and a leading engineer for several organizations, including the Crimean Astrophysical Observatory since 1997. In particular, he devised the control block for the clockwork mechanism of the 0.4-m astrograph.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080520/MPCPages.arcLast Updated: 2008-05-22

Alternate Designations
 1981 SE7 = 1990 VZ14 = 1990 WX14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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