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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457007.5 (2014-Dec-16.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07457705032092851 3.489e-08  
q 2.817393346353965 1.0442e-07 au
tp 2456200.820303945459
(2012-Sep-30.32030395)
0.00016581 TDB
node 219.1530794667572 2.6699e-05 deg
peri 68.85359210209933 4.0275e-05 deg
i 8.612248984187715 4.3334e-06 deg
  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
 Jupiter MOID = 1.85215 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.217290310141786E-15 -3.601903352068638E-15 5.650452401057896E-13 -3.063458988993604E-15 1.075337402214183E-13 -6.711400018809511E-17
q -3.601903352068638E-15 1.090402211961014E-14 -1.774342812752156E-12 1.001543396072001E-14 -3.187254246556132E-13 8.529272468597477E-16
tp 5.650452401057896E-13 -1.774342812752156E-12 2.749147687079942E-8 6.026967295475092E-12 5.016572471279111E-9 5.052154659459813E-13
node -3.063458988993604E-15 1.001543396072001E-14 6.026967295475092E-12 7.128282748508581E-10 -7.03507075803601E-10 -2.046104825839505E-11
peri 1.075337402214183E-13 -3.187254246556132E-13 5.016572471279111E-9 -7.03507075803601E-10 1.622081736155491E-9 2.026983642363248E-11
i -6.711400018809511E-17 8.529272468597477E-16 5.052154659459813E-13 -2.046104825839505E-11 2.026983642363248E-11 1.877861910307299E-11

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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