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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1806993953082258 4.1182e-08  
a 2.24667684891538 7.1113e-09 au
q 1.840703700863381 9.3326e-08 au
i 2.169354335038964 4.3504e-06 deg
node 307.1562137767839 0.00010186 deg
peri 62.49763142853711 0.00010243 deg
M 285.4000337916989 1.0408e-05 deg
tp 2459651.385700779296
(2022-Mar-12.88570078)
3.5977e-05 TDB
period 1230.011981832992
3.37
5.8399e-06
1.599e-08
d
yr
n .2926800757367582 1.3896e-09 deg/d
Q 2.65264999696738 8.3963e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58147  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:57  

Additional Information
 Earth MOID = .84045 au 
 Jupiter MOID = 2.81898 au 
 T_jup = 3.608 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457332.5 (2015-Nov-06.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180409533323595 4.1324e-08  
q 1.841374088311367 9.3586e-08 au
tp 2457189.646792068210
(2015-Jun-16.14679207)
3.373e-05 TDB
node 307.3294495731264 0.00010166 deg
peri 61.99478215773774 0.00010224 deg
i 2.171503749685018 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58147  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:57  

Additional Information
 Jupiter MOID = 2.81898 au 
 T_jup = 3.608 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.707681685541921E-15 -3.85982246650497E-15 -4.068949950067491E-13 8.040988710430024E-15 -1.639356149186122E-13 -9.189224312804144E-16
q -3.85982246650497E-15 8.758370817153132E-15 9.217946057870378E-13 -1.761596841944244E-14 3.708417289089815E-13 2.162326235169694E-15
tp -4.068949950067491E-13 9.217946057870378E-13 1.137721357951293E-9 -1.069856113312289E-11 3.761180695786257E-10 2.478167689310007E-13
node 8.040988710430024E-15 -1.761596841944244E-14 -1.069856113312289E-11 1.033458283493186E-8 -1.033037120898622E-8 1.306744445859729E-10
peri -1.639356149186122E-13 3.708417289089815E-13 3.761180695786257E-10 -1.033037120898622E-8 1.045207912867985E-8 -1.305133122933773E-10
i -9.189224312804144E-16 2.162326235169694E-15 2.478167689310007E-13 1.306744445859729E-10 -1.305133122933773E-10 1.896794914135406E-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 16.59   n/a E2021B55  

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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