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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09639872318236732 3.9194e-08  
a 3.074153841799988 2.1569e-08 au
q 2.7778093365843 1.1886e-07 au
i 20.92860544100787 5.9553e-06 deg
node 223.5501929897854 1.2345e-05 deg
peri 98.28951909073217 3.4001e-05 deg
M 38.83393715541815 3.0784e-05 deg
tp 2458388.128739068703
(2018-Sep-26.62873907)
0.00016846 TDB
period 1968.733008690057
5.39
2.072e-05
5.673e-08
d
yr
n .1828587210205485 1.9245e-09 deg/d
Q 3.370498347015676 2.3648e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1998-12-19  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50632  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:26:06  

Additional Information
 Earth MOID = 1.86203 au 
 Jupiter MOID = 1.9613 au 
 T_jup = 3.122 
[ 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 13.5   n/a MPO319637  
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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