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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09710954444410343 3.1473e-08  
a 2.311850095440699 8.9801e-09 au
q 2.087347385849395 7.3316e-08 au
i 4.797166004793424 4.7853e-06 deg
node 349.3896701065872 4.2289e-05 deg
peri 108.4201368641228 5.0191e-05 deg
M 291.2326885532829 2.8542e-05 deg
tp 2459245.754777884388
(2021-Jan-31.25477788)
0.00010237 TDB
period 1283.919905852227
3.52
7.4809e-06
2.048e-08
d
yr
n .2803913221993727 1.6337e-09 deg/d
Q 2.536352805032002 9.8522e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1316  
   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      .49647  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:13:44  

Additional Information
 Earth MOID = 1.11003 au 
 Jupiter MOID = 2.57699 au 
 T_jup = 3.573 
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Orbital Elements at Epoch 2456790.5 (2014-May-13.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09697482666810833 3.1311e-08  
q 2.088429596863245 7.3008e-08 au
tp 2456675.047716768330
(2014-Jan-17.54771677)
9.7591e-05 TDB
node 349.5029495675271 4.2272e-05 deg
peri 107.8054240542248 5.0253e-05 deg
i 4.797984943189459 4.7859e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1316  
   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      .49647  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:13:44  

Additional Information
 Jupiter MOID = 2.57699 au 
 T_jup = 3.573 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.804075054288693E-16 -2.271595334429453E-15 3.817027246051302E-13 -1.959680291062927E-15 1.004405627707727E-13 1.656797715817783E-16
q -2.271595334429453E-15 5.330202933929427E-15 -6.517800364120273E-13 2.954758387713418E-15 -1.670408437955538E-13 -4.398001570197994E-16
tp 3.817027246051302E-13 -6.517800364120273E-13 9.523914625831592E-9 -2.518176978027863E-11 2.661632024293822E-9 -1.984137333884212E-12
node -1.959680291062927E-15 2.954758387713418E-15 -2.518176978027863E-11 1.786892444577588E-9 -1.786914967128462E-9 2.499168149958361E-11
peri 1.004405627707727E-13 -1.670408437955538E-13 2.661632024293822E-9 -1.786914967128462E-9 2.525338057550415E-9 -2.544649221303185E-11
i 1.656797715817783E-16 -4.398001570197994E-16 -1.984137333884212E-12 2.499168149958361E-11 -2.544649221303185E-11 2.290506155308888E-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 14.2   n/a MPO492858  

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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