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46227 (2001 HQ2)
Classification: Main-belt Asteroid          SPK-ID: 2046227
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09656952983248687 3.7532e-08  
a 3.075713874641644 1.914e-08 au
q 2.778693631868244 1.1227e-07 au
i 20.92239153442319 5.0767e-06 deg
node 223.5397330332164 1.1285e-05 deg
peri 98.60355152125507 2.8868e-05 deg
M 148.1713527285621 2.7181e-05 deg
tp 2458389.578024802949
(2018-Sep-28.07802480)
0.00014757 TDB
period 1970.231800513652
5.39
1.8391e-05
5.035e-08
d
yr
n .18271961700453 1.7056e-09 deg/d
Q 3.372734117415045 2.0988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1469  
   data-arc span      8122 days (22.24 yr)  
   first obs. used      1998-12-19  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48781  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:47:11  

Additional Information
 Earth MOID = 1.86175 au 
 Jupiter MOID = 1.96032 au 
 T_jup = 3.121 
[ 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 13.6   n/a MPO502464  
diameter diameter 11.099 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46227 (2001 HQ2)          Discovered 2001-Apr-17 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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