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JPL Small-Body Database Browser
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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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07578132104843556 3.2418e-08  
a 2.858286567694542 1.1223e-08 au
q 2.641681835659651 9.1666e-08 au
i 1.558053197205752 3.8831e-06 deg
node 355.6856998284298 0.00012093 deg
peri 47.19129180278355 0.00012357 deg
M 123.333528626361 2.5131e-05 deg
tp 2458395.805893753830
(2018-Oct-04.30589375)
0.00012289 TDB
period 1765.050271999538
4.83
1.0395e-05
2.846e-08
d
yr
n .2039601963247052 1.2012e-09 deg/d
Q 3.074891299729432 1.2073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2950  
   data-arc span      24044 days (65.83 yr)  
   first obs. used      1954-06-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:44:04  

Additional Information
 Earth MOID = 1.65044 au 
 Jupiter MOID = 2.22696 au 
 T_jup = 3.298 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456875.5 (2014-Aug-06.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0731734710377541 3.22e-08  
q 2.651080942357684 9.0623e-08 au
tp 2456633.890494569454
(2013-Dec-07.39049457)
0.00012771 TDB
node 355.7428022893109 0.00012097 deg
peri 48.15058948381205 0.00012382 deg
i 1.558752651758698 3.8782e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2950  
   data-arc span      24044 days (65.83 yr)  
   first obs. used      1954-06-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:44:04  

Additional Information
 Jupiter MOID = 2.22696 au 
 T_jup = 3.298 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.036839601849153E-15 -2.899296940209284E-15 -7.005933288228256E-13 5.419446981953384E-15 -1.752795611939623E-13 -4.8162528793022E-17
q -2.899296940209284E-15 8.21250801177577E-15 1.93522193410294E-12 -1.497122493520695E-14 4.871421892026841E-13 1.789594536922707E-16
tp -7.005933288228256E-13 1.93522193410294E-12 1.630916127143054E-8 -1.519983245177313E-11 3.380778056537073E-9 -3.437560878196853E-13
node 5.419446981953384E-15 -1.497122493520695E-14 -1.519983245177313E-11 1.463445015339797E-8 -1.463207430046289E-8 -4.529381887990495E-11
peri -1.752795611939623E-13 4.871421892026841E-13 3.380778056537073E-9 -1.463207430046289E-8 1.533142231184275E-8 4.521140774807647E-11
i -4.8162528793022E-17 1.789594536922707E-16 -3.437560878196853E-13 -4.529381887990495E-11 4.521140774807647E-11 1.504066668217421E-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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2135-Dec-03 04:22 00:04 Europ 0.0418157278529019 0.0418121279652796 0.0418193326848716 2.9656677820421 2.96566769633643 2501188.681901919 4.18189691770053 746.010274179836 26.555733650946 76.234038094837 228526.593869855 T 35 CATAB v2.0f-lin.ifort 2020-May-20 01:44:19 2020-May-20 01:44

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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