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120964 (1998 VK22)
Classification: Main-belt Asteroid          SPK-ID: 2120964
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1805104262284379 4.1141e-08  
a 2.246584136317571 7.178e-09 au
q 1.841052276312839 9.3135e-08 au
i 2.169425658894475 4.3504e-06 deg
node 307.1554236092688 0.00010185 deg
peri 62.56173834293171 0.00010243 deg
M 169.3992635233299 1.027e-05 deg
tp 2458421.749371277239
(2018-Oct-30.24937128)
3.4454e-05 TDB
period 1229.935845095925
3.37
5.8946e-06
1.614e-08
d
yr
n .2926981935158764 1.4028e-09 deg/d
Q 2.652115996322303 8.4738e-09 au
  Orbit Determination Parameters
   # obs. used (total)      679  
   data-arc span      7852 days (21.50 yr)  
   first obs. used      1998-10-19  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58163  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:11:41  

Additional Information
 Earth MOID = .841629 au 
 Jupiter MOID = 2.81784 au 
 T_jup = 3.608 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457332.5 (2015-Nov-06.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180409532945521 4.1324e-08  
q 1.841374089344729 9.3586e-08 au
tp 2457189.646791894271
(2015-Jun-16.14679189)
3.373e-05 TDB
node 307.3294492803479 0.00010166 deg
peri 61.99478247517795 0.00010224 deg
i 2.171503738504781 4.3552e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      679  
   data-arc span      7852 days (21.50 yr)  
   first obs. used      1998-10-19  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58163  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:11:41  

Additional Information
 Jupiter MOID = 2.81784 au 
 T_jup = 3.608 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.707681963567308E-15 -3.859823606548709E-15 -4.068950283210216E-13 8.041020230894537E-15 -1.639357729778438E-13 -9.189231026442454E-16
q -3.859823606548709E-15 8.758374754715711E-15 9.217944588505082E-13 -1.761604994614281E-14 3.708421124685811E-13 2.162328321073387E-15
tp -4.068950283210216E-13 9.217944588505082E-13 1.137721382693121E-9 -1.069855873495076E-11 3.761180129507628E-10 2.478167616415876E-13
node 8.041020230894537E-15 -1.761604994614281E-14 -1.069855873495076E-11 1.033458261173154E-8 -1.033037098793334E-8 1.306744497009269E-10
peri -1.639357729778438E-13 3.708421124685811E-13 3.761180129507628E-10 -1.033037098793334E-8 1.045207890892172E-8 -1.305133172449315E-10
i -9.189231026442454E-16 2.162328321073387E-15 2.478167616415876E-13 1.306744497009269E-10 -1.305133172449315E-10 1.896794974527216E-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 16.5   n/a MPO453680  

120964 (1998 VK22)          Discovered 1998-Nov-10 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1998 VK22 = 2001 OT99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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