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JPL Small-Body Database Browser
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46241 (2001 HG12)
Classification: Main-belt Asteroid          SPK-ID: 2046241
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02977119962900554 4.1806e-08  
a 2.973072477950121 2.3095e-08 au
q 2.884560543697566 1.2325e-07 au
i 8.682349923145557 6.9859e-06 deg
node 212.1238321996226 3.2655e-05 deg
peri 76.72113607881654 0.00012871 deg
M 191.6703836551363 0.00012597 deg
tp 2459876.017244695871
(2022-Oct-23.51724470)
0.00065716 TDB
period 1872.43466084292
5.13
2.1818e-05
5.973e-08
d
yr
n .1922630506305292 2.2402e-09 deg/d
Q 3.061584412202677 2.3782e-08 au
  Orbit Determination Parameters
   # obs. used (total)      890  
   data-arc span      10465 days (28.65 yr)  
   first obs. used      1991-06-08  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51589  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:23:58  

Additional Information
 Earth MOID = 1.88443 au 
 Jupiter MOID = 1.97633 au 
 T_jup = 3.244 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO452802  
diameter diameter 4.541 km 1.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46241 (2001 HG12)          Discovered 2001-Apr-18 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HG12 = 1996 HP21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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