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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08780674150326688 3.6433e-08  
a 2.711180037956399 1.4126e-08 au
q 2.473120153194744 9.7935e-08 au
i 16.32653873216437 4.4255e-06 deg
node 213.7480549997418 1.3554e-05 deg
peri 283.5179304468107 3.1497e-05 deg
M 216.4809962355046 3.1404e-05 deg
tp 2459850.544180221124
(2022-Sep-28.04418022)
0.00014476 TDB
period 1630.556920974787
4.46
1.2744e-05
3.489e-08
d
yr
n .2207834607728893 1.7256e-09 deg/d
Q 2.949239922718053 1.5367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1108  
   data-arc span      10438 days (28.58 yr)  
   first obs. used      1992-05-07  
   last obs. used      2020-12-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51616  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:47:18  

Additional Information
 Earth MOID = 1.53957 au 
 Jupiter MOID = 2.17235 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 14.57   n/a MPCxxxxx  
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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