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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07168861695059674 3.7398e-08  
a 2.856986712733132 1.1667e-08 au
q 2.652173286651062 1.0518e-07 au
i 2.695337719347607 3.5552e-06 deg
node 147.7057557735626 8.2521e-05 deg
peri 192.954590862089 8.6505e-05 deg
M 98.48769834748525 2.609e-05 deg
tp 2458517.952305408218
(2019-Feb-03.45230541)
0.00012784 TDB
period 1763.846378459684
4.83
1.0804e-05
2.958e-08
d
yr
n .2040994070664916 1.2502e-09 deg/d
Q 3.061800138815202 1.2503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2505  
   data-arc span      16793 days (45.98 yr)  
   first obs. used      1974-04-24  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:07:53  

Additional Information
 Earth MOID = 1.64346 au 
 Jupiter MOID = 2.22329 au 
 T_jup = 3.298 
[ show covariance matrix ]

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 12.5   n/a MPO416759  

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

[ show close-approach data ]
Alternate Designations
 1985 VE1 = 1974 HO2 = 1976 YV2 = 1980 RK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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