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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1188761394985497 1.8226e-08  
a 2.672793489245946 1.0206e-08 au
q 2.35506211756753 4.9219e-08 au
i 6.545915646112148 9.6263e-07 deg
node 67.39170390481451 3.0882e-06 deg
peri 269.9418040952689 1.0552e-05 deg
M 63.54060005132395 8.1541e-06 deg
tp 2459114.794487816740
(2020-Sep-22.29448782)
3.6164e-05 TDB
period 1596.050152250026
4.37
9.1414e-06
2.503e-08
d
yr
n .2255568219410218 1.2919e-09 deg/d
Q 2.990524860924363 1.1419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2134  
   data-arc span      14380 days (39.37 yr)  
   first obs. used      1981-09-28  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45768  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 20:58:33  

Additional Information
 Earth MOID = 1.35634 au 
 Jupiter MOID = 2.37229 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457555.5 (2016-Jun-16.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1200263404703198 1.8374e-08  
q 2.352528572208385 4.9859e-08 au
tp 2457521.587560240095
(2016-May-13.08756024)
3.7192e-05 TDB
node 67.42307308141497 3.0851e-06 deg
peri 270.6861399620847 1.0423e-05 deg
i 6.549887086201764 9.6311e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2134  
   data-arc span      14380 days (39.37 yr)  
   first obs. used      1981-09-28  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45768  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 20:58:33  

Additional Information
 Jupiter MOID = 2.37229 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.376015374071307E-16 -9.008838889934206E-16 3.086797673500276E-13 -5.388847472584895E-15 1.116958401316086E-13 6.775010184420174E-15
q -9.008838889934206E-16 2.485951008566459E-15 -9.223915344937013E-13 1.530142809996133E-14 -3.253947616466368E-13 -1.818428828449845E-14
tp 3.086797673500276E-13 -9.223915344937013E-13 1.383209069523114E-9 -7.102412699886741E-12 3.645882414030273E-10 -1.207431920096729E-13
node -5.388847472584895E-15 1.530142809996133E-14 -7.102412699886741E-12 9.517765268803881E-12 -1.13274692143558E-11 -2.934410247944758E-13
peri 1.116958401316086E-13 -3.253947616466368E-13 3.645882414030273E-10 -1.13274692143558E-11 1.086361733604491E-10 9.303515827885459E-13
i 6.775010184420174E-15 -1.818428828449845E-14 -1.207431920096729E-13 -2.934410247944758E-13 9.303515827885459E-13 9.275807465642811E-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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