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442730 (2012 VW72)
Classification: Main-belt Asteroid          SPK-ID: 2442730
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1386700094131269 9.0035e-08  
a 2.257493152697021 1.786e-08 au
q 1.944446555962455 2.0022e-07 au
i 3.536308363626441 7.9721e-06 deg
node 84.72835298515923 0.00013567 deg
peri 328.0778918927062 0.00014094 deg
M 82.74816249945607 3.6721e-05 deg
tp 2458715.730188802659
(2019-Aug-20.23018880)
0.00012478 TDB
period 1238.905238913514
3.39
1.4702e-05
4.025e-08
d
yr
n .29057912477286 3.4483e-09 deg/d
Q 2.570539749431586 2.0336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      8874 days (24.30 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56879  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:42:44  

Additional Information
 Earth MOID = .956701 au 
 Jupiter MOID = 2.75699 au 
 T_jup = 3.607 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457003.5 (2014-Dec-12.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1381433282623141 9.0111e-08  
q 1.945756122858936 2.0043e-07 au
tp 2457475.023205653825
(2016-Mar-27.52320565)
0.00011959 TDB
node 84.77190418681818 0.00013579 deg
peri 327.6528776946831 0.00014111 deg
i 3.535167663850328 7.9668e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      8874 days (24.30 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56879  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:42:44  

Additional Information
 Jupiter MOID = 2.75699 au 
 T_jup = 3.607 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.120028716189339E-15 -1.800996210554548E-14 -2.534596847139658E-12 -1.144500335241958E-13 -1.040116348498103E-12 -1.580290987390711E-15
q -1.800996210554548E-14 4.017174854672354E-14 6.411735982176673E-12 2.572535282700418E-13 2.527385446376241E-12 3.482303410800847E-15
tp -2.534596847139658E-12 6.411735982176673E-12 1.430114951791085E-8 4.306105393240695E-11 4.63364514095779E-9 -6.422240531919084E-12
node -1.144500335241958E-13 2.572535282700418E-13 4.306105393240695E-11 1.843769161796526E-8 -1.838379158809998E-8 -9.825445090402116E-11
peri -1.040116348498103E-12 2.527385446376241E-12 4.63364514095779E-9 -1.838379158809998E-8 1.99119419899599E-8 9.612997847665508E-11
i -1.580290987390711E-15 3.482303410800847E-15 -6.422240531919084E-12 -9.825445090402116E-11 9.612997847665508E-11 6.347064547948189E-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 18.4   n/a MPO408999  

442730 (2012 VW72)          Discovered 1995-Oct-17 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 VW72 = 1995 UR83 = 2012 UL152 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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