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4964 Kourovka (1979 OD15)
Classification: Main-belt Asteroid          SPK-ID: 2004964
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1233896424906574 8.7591e-09  
a 2.262431884147094 5.835e-09 au
q 1.98327122280272 2.2474e-08 au
i 4.919233585915901 2.1681e-07 deg
node 167.4034209296589 3.0676e-06 deg
peri 204.8626701016378 7.0055e-06 deg
M 65.18461221975652 7.1522e-06 deg
tp 2459171.436907885288
(2020-Nov-17.93690789)
2.4799e-05 TDB
period 1242.973002403467
3.40
4.8086e-06
1.317e-08
d
yr
n .2896281731814676 1.1205e-09 deg/d
Q 2.541592545491468 6.555e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2946  
   data-arc span      15218 days (41.66 yr)  
   first obs. used      1979-07-21  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42571  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 11:00:22  

Additional Information
 Earth MOID = .983316 au 
 Jupiter MOID = 2.92326 au 
 T_jup = 3.604 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457609.5 (2016-Aug-09.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242917556908062 8.7968e-09  
q 1.980884649251274 2.2598e-08 au
tp 2457929.114214632422
(2017-Jun-24.61421463)
2.5694e-05 TDB
node 167.4697519818845 3.0702e-06 deg
peri 205.005211725934 6.9562e-06 deg
i 4.918361930290686 2.1684e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2946  
   data-arc span      15218 days (41.66 yr)  
   first obs. used      1979-07-21  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42571  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 11:00:22  

Additional Information
 Jupiter MOID = 2.92326 au 
 T_jup = 3.604 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.73839077042603E-17 -1.945654415578663E-16 7.761615444978382E-14 1.891049774103641E-14 4.398228485689729E-15 4.51294685661326E-16
q -1.945654415578663E-16 5.106773980763884E-16 -2.175664453056404E-13 -4.382258398721398E-14 -2.293945394306364E-14 -1.068487627322197E-15
tp 7.761615444978382E-14 -2.175664453056404E-13 6.601810796092248E-10 1.408077462214095E-11 1.642105155740355E-10 1.205212867556371E-12
node 1.891049774103641E-14 -4.382258398721398E-14 1.408077462214095E-11 9.426285431930428E-12 -4.435544453630432E-12 1.664486857025627E-13
peri 4.398228485689729E-15 -2.293945394306364E-14 1.642105155740355E-10 -4.435544453630432E-12 4.838812734457218E-11 2.383933021679448E-13
i 4.51294685661326E-16 -1.068487627322197E-15 1.205212867556371E-12 1.664486857025627E-13 2.383933021679448E-13 4.702117594395383E-14

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.61   n/a MPCxxxxx  
diameter diameter 4.423 km 0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.394   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4964 Kourovka (1979 OD15)          Discovered 1979-Jul-21 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1979 OD15 = 1986 RY6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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