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4447 Kirov (1985 VE1)
Classification: Main-belt Asteroid          SPK-ID: 2004447
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07174716695248493 2.9269e-08  
a 2.857287822749625 1.0876e-08 au
q 2.652285516299506 8.1377e-08 au
i 2.695536977859667 1.081e-06 deg
node 147.7015224626782 2.5344e-05 deg
peri 193.0784784325113 2.8028e-05 deg
M 139.1691640212736 1.2408e-05 deg
tp 2458518.522682920465
(2019-Feb-04.02268292)
5.9079e-05 TDB
period 1764.125234747428
4.83
1.0073e-05
2.758e-08
d
yr
n .2040671449561468 1.1652e-09 deg/d
Q 3.062290129199745 1.1657e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2837  
   data-arc span      17132 days (46.90 yr)  
   first obs. used      1974-04-24  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44304  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:38:08  

Additional Information
 Earth MOID = 1.64173 au 
 Jupiter MOID = 2.2225 au 
 T_jup = 3.298 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.59   n/a MPCxxxxx  

4447 Kirov (1985 VE1)          Discovered 1985-Nov-07 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1985 VE1 = 1974 HO2 = 1976 YV2 = 1980 RK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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