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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07125295262487515 3.4536e-08  
a 3.047297748822729 1.7385e-08 au
q 2.830168786691974 1.0283e-07 au
i 8.627438564715408 4.3176e-06 deg
node 218.9649898800517 2.627e-05 deg
peri 70.23135323443861 4.104e-05 deg
M 157.6947865731287 3.2393e-05 deg
tp 2458149.390186544737
(2018-Jan-30.89018654)
0.00017419 TDB
period 1942.990884494499
5.32
1.6627e-05
4.552e-08
d
yr
n .1852813633213004 1.5855e-09 deg/d
Q 3.264426710953483 1.8623e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1584  
   data-arc span      7716 days (21.13 yr)  
   first obs. used      1998-12-15  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50654  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:23:38  

Additional Information
 Earth MOID = 1.82913 au 
 Jupiter MOID = 1.85221 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

[ show close-approach data ]
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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