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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02979447747390863 3.7697e-08  
a 2.972794173300864 1.927e-08 au
q 2.884221324269885 1.1612e-07 au
i 8.682730859377539 6.2267e-06 deg
node 212.1136774931899 3.1555e-05 deg
peri 77.03367024900216 0.00012685 deg
M 229.808373904705 0.0001252 deg
tp 2459877.558569212704
(2022-Oct-25.05856921)
0.00065307 TDB
period 1872.171753490235
5.13
1.8204e-05
4.984e-08
d
yr
n .1922900499534097 1.8697e-09 deg/d
Q 3.061367022331844 1.9845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1029  
   data-arc span      10881 days (29.79 yr)  
   first obs. used      1991-06-08  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50228  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:38:01  

Additional Information
 Earth MOID = 1.88231 au 
 Jupiter MOID = 1.9759 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 14.42   n/a MPCxxxxx  
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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