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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1385211050317165 9.7484e-08  
a 2.257345724893249 2.2022e-08 au
q 1.944655700642415 2.2184e-07 au
i 3.536417992753726 8.4348e-06 deg
node 84.72892584787913 0.00015887 deg
peri 328.1433177792714 0.00016684 deg
M 326.4665385933886 4.9948e-05 deg
tp 2458715.890864994478
(2019-Aug-20.39086499)
0.00017296 TDB
period 1238.78387901292
3.39
1.8128e-05
4.963e-08
d
yr
n .2906075919286687 4.2526e-09 deg/d
Q 2.570035749144083 2.5072e-08 au
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      7825 days (21.42 yr)  
   first obs. used      1995-10-17  
   last obs. used      2017-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56662  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:25:49  

Additional Information
 Earth MOID = .956481 au 
 Jupiter MOID = 2.7573 au 
 T_jup = 3.607 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456770.5 (2014-Apr-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1383096536402116 9.7809e-08  
q 1.945098324638248 2.2274e-07 au
tp 2456236.171788205196
(2012-Nov-04.67178821)
0.00015235 TDB
node 84.77081169977005 0.00015901 deg
peri 327.6623704823731 0.00016701 deg
i 3.535325914103645 8.4296e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      7825 days (21.42 yr)  
   first obs. used      1995-10-17  
   last obs. used      2017-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56662  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:25:49  

Additional Information
 Jupiter MOID = 2.7573 au 
 T_jup = 3.607 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.566593657189732E-15 -2.170464096294567E-14 -6.341150728415664E-12 -2.385554743050355E-13 -2.110295918459424E-12 -3.388452590557788E-16
q -2.170464096294567E-14 4.961093018987792E-14 1.579418331000594E-11 5.451108816771192E-13 5.281333599783728E-12 3.612042575533678E-16
tp -6.341150728415664E-12 1.579418331000594E-11 2.320933847165943E-8 1.283583861462577E-10 7.86792352707233E-9 -8.87407812346478E-12
node -2.385554743050355E-13 5.451108816771192E-13 1.283583861462577E-10 2.528520363540665E-8 -2.518788022585372E-8 -1.8916115189289E-10
peri -2.110295918459424E-12 5.281333599783728E-12 7.86792352707233E-9 -2.518788022585372E-8 2.789245205039647E-8 1.859993056471595E-10
i -3.388452590557788E-16 3.612042575533678E-16 -8.87407812346478E-12 -1.8916115189289E-10 1.859993056471595E-10 7.105814261286149E-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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