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JPL Small-Body Database Browser
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437222 (2012 WM30)
Classification: Main-belt Asteroid          SPK-ID: 2437222
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06654201819564007 6.1391e-08  
a 2.975140517707129 8.8047e-08 au
q 2.777168663243275 1.5402e-07 au
i 4.246066671764774 7.5892e-06 deg
node 57.85775473171214 7.7445e-05 deg
peri 273.5331080931069 9.5778e-05 deg
M 177.7439501160922 5.779e-05 deg
tp 2457675.052093213664
(2016-Oct-13.55209321)
0.00029489 TDB
period 1874.388671037631
5.13
8.3206e-05
2.278e-07
d
yr
n .1920626205026676 8.5259e-09 deg/d
Q 3.173112372170983 9.3905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      3633 days (9.95 yr)  
   first obs. used      2009-02-27  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5167  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:27:00  

Additional Information
 Earth MOID = 1.76977 au 
 Jupiter MOID = 2.07002 au 
 T_jup = 3.254 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457520.5 (2016-May-12.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06580448498209032 6.1435e-08  
q 2.780058187799368 1.5411e-07 au
tp 2457676.396709665143
(2016-Oct-14.89670967)
0.0002981 TDB
node 57.86724879072174 7.7439e-05 deg
peri 273.9150003676008 9.6123e-05 deg
i 4.246076192682467 7.5885e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      3633 days (9.95 yr)  
   first obs. used      2009-02-27  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5167  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:27:00  

Additional Information
 Jupiter MOID = 2.07002 au 
 T_jup = 3.254 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.774200227542837E-15 -8.470662891935614E-15 1.986879899415639E-12 6.438110866869909E-15 3.772129665947519E-13 1.27950993596187E-16
q -8.470662891935614E-15 2.374839250222538E-14 -4.099031354018568E-12 -1.696414129963636E-14 -8.425823401409697E-13 3.062743660513941E-15
tp 1.986879899415639E-12 -4.099031354018568E-12 8.886164582509367E-8 3.122161518800919E-11 1.700501894906332E-8 3.179226703224791E-12
node 6.438110866869909E-15 -1.696414129963636E-14 3.122161518800919E-11 5.996736864499429E-9 -5.973990289396281E-9 -1.697688836551593E-11
peri 3.772129665947519E-13 -8.425823401409697E-13 1.700501894906332E-8 -5.973990289396281E-9 9.239670081741093E-9 1.755198540005093E-11
i 1.27950993596187E-16 3.062743660513941E-15 3.179226703224791E-12 -1.697688836551593E-11 1.755198540005093E-11 5.758460689240504E-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 MPO434608  
diameter diameter 3.998 km 0.519 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.048   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

437222 (2012 WM30)          Discovered 2010-Feb-16 by WISE at WISE
Reference: Last Updated: 2015-06-04

Alternate Designations
 2012 WM30 = 2010 DJ80 = 2010 PL53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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