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216522 (2001 HQ6)
Classification: Main-belt Asteroid          SPK-ID: 2216522
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04866785200330648 5.2706e-08  
a 2.789745745455011 2.9415e-08 au
q 2.653974812388352 1.5057e-07 au
i 5.562035717818826 5.2699e-06 deg
node 85.49599699894063 6.6049e-05 deg
peri 216.9778208676129 8.9721e-05 deg
M 5.461145588400493 6.2131e-05 deg
tp 2459174.681761014342
(2020-Nov-21.18176101)
0.00029362 TDB
period 1701.944378589478
4.66
2.6918e-05
7.37e-08
d
yr
n .2115227762603837 3.3454e-09 deg/d
Q 2.925516678521669 3.0846e-08 au
  Orbit Determination Parameters
   # obs. used (total)      284  
   data-arc span      6560 days (17.96 yr)  
   first obs. used      2001-04-18  
   last obs. used      2019-04-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .68728  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:10  

Additional Information
 Earth MOID = 1.63882 au 
 Jupiter MOID = 2.17977 au 
 T_jup = 3.321 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO433417  
diameter diameter 4.965 km 0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.026   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216522 (2001 HQ6)          Discovered 2001-Apr-18 by Spacewatch at Kitt Peak
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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