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46243 (2001 HR12)
Classification: Main-belt Asteroid          SPK-ID: 2046243
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08719261526983159 3.7522e-08  
a 2.712759963642384 1.563e-08 au
q 2.476227327813112 1.0064e-07 au
i 16.32232623074349 6.4489e-06 deg
node 213.7829738280801 1.4515e-05 deg
peri 283.3891024297075 3.8766e-05 deg
M 172.4397348493324 3.6552e-05 deg
tp 2458218.781619898910
(2018-Apr-10.28161990)
0.00016469 TDB
period 1631.982426105441
4.47
1.4105e-05
3.862e-08
d
yr
n .220590610683905 1.9065e-09 deg/d
Q 2.949292599471657 1.6993e-08 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      9943 days (27.22 yr)  
   first obs. used      1992-05-07  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55338  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:23:58  

Additional Information
 Earth MOID = 1.54291 au 
 Jupiter MOID = 2.17298 au 
 T_jup = 3.299 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO474335  
diameter diameter 4.583 km 0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.158   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46243 (2001 HR12)          Discovered 2001-Apr-18 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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