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9184 Vasilij (1991 PJ3)
Classification: Main-belt Asteroid          SPK-ID: 2009184
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09658802030174997 3.1433e-08  
a 2.312981595958767 9.0929e-09 au
q 2.089575282610727 7.3212e-08 au
i 4.795593467963518 4.7853e-06 deg
node 349.413395883206 4.2334e-05 deg
peri 108.23795867328 5.0323e-05 deg
M 179.2547684628453 2.8473e-05 deg
tp 2457960.728471007324
(2017-Jul-26.22847101)
0.00010029 TDB
period 1284.862614324828
3.52
7.5766e-06
2.074e-08
d
yr
n .2801855980447944 1.6522e-09 deg/d
Q 2.536387909306806 9.9711e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1312  
   data-arc span      13886 days (38.02 yr)  
   first obs. used      1981-10-24  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49956  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:15:48  

Additional Information
 Earth MOID = 1.11238 au 
 Jupiter MOID = 2.57847 au 
 T_jup = 3.572 
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Orbital Elements at Epoch 2456788.5 (2014-May-11.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09697668808052907 3.1325e-08  
q 2.088433864224227 7.3048e-08 au
tp 2456675.054846552471
(2014-Jan-17.55484655)
9.7643e-05 TDB
node 349.5030399215781 4.2303e-05 deg
peri 107.8077654912173 5.0284e-05 deg
i 4.797972122173768 4.7872e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1312  
   data-arc span      13886 days (38.02 yr)  
   first obs. used      1981-10-24  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49956  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:15:48  

Additional Information
 Jupiter MOID = 2.57847 au 
 T_jup = 3.572 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.81226640184016E-16 -2.273764426662399E-15 3.788209419373643E-13 -1.938990182716082E-15 9.96895767338757E-14 1.66830454751331E-16
q -2.273764426662399E-15 5.335938507961464E-15 -6.44255429444027E-13 2.91234386904489E-15 -1.650922948165385E-13 -4.428376894750797E-16
tp 3.788209419373643E-13 -6.44255429444027E-13 9.534102645566249E-9 -2.496095922681357E-11 2.663968455823675E-9 -1.969425668816763E-12
node -1.938990182716082E-15 2.91234386904489E-15 -2.496095922681357E-11 1.789550023712145E-9 -1.789503216965289E-9 2.516974242416964E-11
peri 9.96895767338757E-14 -1.650922948165385E-13 2.663968455823675E-9 -1.789503216965289E-9 2.528497835261667E-9 -2.561996259752266E-11
i 1.66830454751331E-16 -4.428376894750797E-16 -1.969425668816763E-12 2.516974242416964E-11 -2.561996259752266E-11 2.291688884693781E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO435786  

9184 Vasilij           Discovered 1991 Aug. 2 by E. W. Elst at the European Southern Observatory.
Vasilij Rumyantsev (b. 1968) is a Russian astronomer working at the Crimean Astrophysical Observatory. Observing in particular near-earth asteroids and comets, he has become an expert in CCD astronomy. In 1995, the discoverer met him for the first time at Tunguska, Siberia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1991 PJ3 = 1981 UJ27 = 1988 TR4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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