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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07130194977529762 3.4672e-08  
a 3.04626232961268 1.7382e-08 au
q 2.829057885984255 1.0333e-07 au
i 8.629321140695735 4.3397e-06 deg
node 218.9695461806724 2.6592e-05 deg
peri 69.91824418933776 4.1385e-05 deg
M 83.89331874554685 3.2454e-05 deg
tp 2458147.941995131409
(2018-Jan-29.44199513)
0.00017479 TDB
period 1942.000676440529
5.32
1.6622e-05
4.551e-08
d
yr
n .1853758365624465 1.5866e-09 deg/d
Q 3.263466773241104 1.8621e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1533  
   data-arc span      7662 days (20.98 yr)  
   first obs. used      1998-12-15  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50905  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:52:42  

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

[ 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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