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221309 (2005 VK5)
Classification: Main-belt Asteroid          SPK-ID: 2221309
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2059667872683645 6.5828e-08  
a 2.545159438300026 2.0588e-08 au
q 2.020941125707615 1.7532e-07 au
i 7.104755313193684 4.1866e-06 deg
node 288.8192110237045 5.6903e-05 deg
peri 48.20844296329042 5.8625e-05 deg
M 260.3085340770627 1.501e-05 deg
tp 2459411.201603343976
(2021-Jul-15.70160334)
6.193e-05 TDB
period 1483.101646013744
4.06
1.7995e-05
4.927e-08
d
yr
n .2427345428195039 2.9452e-09 deg/d
Q 3.069377750892438 2.4828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      471  
   data-arc span      6770 days (18.54 yr)  
   first obs. used      2001-10-14  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53104  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:58:10  

Additional Information
 Earth MOID = 1.01917 au 
 Jupiter MOID = 2.33378 au 
 T_jup = 3.403 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457218.5 (2015-Jul-15.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2044053869567553 6.561e-08  
q 2.027366032661778 1.7455e-07 au
tp 2457927.692334234397
(2017-Jun-23.19233423)
6.4222e-05 TDB
node 288.9060873403261 5.6841e-05 deg
peri 47.9582365081055 5.8607e-05 deg
i 7.105494886028261 4.1871e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      471  
   data-arc span      6770 days (18.54 yr)  
   first obs. used      2001-10-14  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53104  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:58:10  

Additional Information
 Jupiter MOID = 2.33378 au 
 T_jup = 3.403 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.304736211859858E-15 -1.141095434208382E-14 2.734598654375996E-12 -2.459268395904872E-14 6.588244188071102E-13 -1.143300781903839E-14
q -1.141095434208382E-14 3.046875864053722E-14 -7.194660037745578E-12 6.810508810425903E-14 -1.763664788075224E-12 3.093645851095536E-14
tp 2.734598654375996E-12 -7.194660037745578E-12 4.124401855093014E-9 -1.796947603213385E-12 9.845421870353841E-10 -1.003065178915274E-11
node -2.459268395904872E-14 6.810508810425903E-14 -1.796947603213385E-12 3.230852034657713E-9 -3.207331332327554E-9 8.232271985525743E-12
peri 6.588244188071102E-13 -1.763664788075224E-12 9.845421870353841E-10 -3.207331332327554E-9 3.43475420572906E-9 -1.057534666013698E-11
i -1.143300781903839E-14 3.093645851095536E-14 -1.003065178915274E-11 8.232271985525743E-12 -1.057534666013698E-11 1.753143446332758E-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 15.9   n/a MPO427292  

221309 (2005 VK5)          Discovered 2005-Nov-06 by Lowe, A. at Mayhill
Reference: 20091004/Numbers.arcLast Updated: 2009-10-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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