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2726 Kotelnikov (1979 SE9)
Classification: Main-belt Asteroid          SPK-ID: 2002726
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07578132297868408 3.2216e-08  
a 2.858286566851686 1.1119e-08 au
q 2.641681829363464 9.0913e-08 au
i 1.558053188179614 3.8827e-06 deg
node 355.6857072850329 0.00011771 deg
peri 47.1912859319774 0.00012039 deg
M 123.3335274496843 2.5059e-05 deg
tp 2458395.805899790448
(2018-Oct-04.30589979)
0.0001225 TDB
period 1765.050271218817
4.83
1.0299e-05
2.82e-08
d
yr
n .2039601964149213 1.1901e-09 deg/d
Q 3.074891304339908 1.1962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      24090 days (65.95 yr)  
   first obs. used      1954-06-30  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:49:07  

Additional Information
 Earth MOID = 1.65044 au 
 Jupiter MOID = 2.22696 au 
 T_jup = 3.298 
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Orbital Elements at Epoch 2456974.5 (2014-Nov-13.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07350503719819018 3.1971e-08  
q 2.65107646965087 8.986e-08 au
tp 2456634.637196338857
(2013-Dec-08.13719634)
0.0001267 TDB
node 355.7299094408439 0.0001177 deg
peri 48.32393110022517 0.00012056 deg
i 1.558916780443094 3.8787e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      24090 days (65.95 yr)  
   first obs. used      1954-06-30  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:49:07  

Additional Information
 Jupiter MOID = 2.22696 au 
 T_jup = 3.298 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.022160368752044E-15 -2.854569941627888E-15 -7.452083460180166E-13 4.385524627456705E-15 -1.845413421710097E-13 -5.044078652006231E-17
q -2.854569941627888E-15 8.074881570379018E-15 2.073989650231213E-12 -1.25589884927593E-14 5.167993911915001E-13 1.728094188729232E-16
tp -7.452083460180166E-13 2.073989650231213E-12 1.6052913787186E-8 -1.029189645361977E-11 3.31852158944341E-9 -3.386279075397413E-13
node 4.385524627456705E-15 -1.25589884927593E-14 -1.029189645361977E-11 1.385234315264644E-8 -1.384923186788869E-8 -4.545611544089802E-11
peri -1.845413421710097E-13 5.167993911915001E-13 3.31852158944341E-9 -1.384923186788869E-8 1.453498026889888E-8 4.53752842505683E-11
i -5.044078652006231E-17 1.728094188729232E-16 -3.386279075397413E-13 -4.545611544089802E-11 4.53752842505683E-11 1.50440723309395E-11

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 12.2   n/a MPO365278  
diameter diameter 10.937 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.63 h n/a LCDB (Rev. 2019-August); 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:
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.213   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2726 Kotelnikov (1979 SE9)          Discovered 1979-Sep-22 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1979 SE9 = 1952 BR1 = 1955 UK1 = 1969 RC1 = 1972 GJ1 = 1974 SH1 = 1974 TN = A906 QE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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