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JPL Small-Body Database Browser
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46226 (2001 HP2)
Classification: Main-belt Asteroid          SPK-ID: 2046226
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0713019462092421 3.5161e-08  
a 3.046262331110519 1.755e-08 au
q 2.829057898238437 1.0526e-07 au
i 8.629321129442715 4.3864e-06 deg
node 218.9695462684164 2.7546e-05 deg
peri 69.9182406283185 4.2393e-05 deg
M 83.89332170618783 3.2815e-05 deg
tp 2458147.941978826607
(2018-Jan-29.44197883)
0.00017683 TDB
period 1942.000677872844
5.32
1.6782e-05
4.595e-08
d
yr
n .1853758364257232 1.6019e-09 deg/d
Q 3.263466763982602 1.8801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1497  
   data-arc span      7653 days (20.95 yr)  
   first obs. used      1998-12-15  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51445  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:15:09  

Additional Information
 Earth MOID = 1.82735 au 
 Jupiter MOID = 1.85215 au 
 T_jup = 3.217 
[ 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 13.3   n/a MPO324723  
diameter diameter 6.998 km 0.239 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.208   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46226 (2001 HP2)          Discovered 2001-Apr-17 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2001 HP2 = 1998 XY79 = 2000 EQ151 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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