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JPL Small-Body Database Browser
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46249 (2001 HQ22)
Classification: Main-belt Asteroid          SPK-ID: 2046249
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351489655933991 4.7399e-08  
a 3.194760774502321 2.6795e-08 au
q 2.762992160509966 1.4571e-07 au
i 2.446375552049032 5.0031e-06 deg
node 111.9170077522953 0.00012112 deg
peri 95.94567872459372 0.00012256 deg
M 134.5083816393094 2.092e-05 deg
tp 2458221.203386860653
(2018-Apr-12.70338686)
0.00011795 TDB
period 2085.719695018443
5.71
2.624e-05
7.184e-08
d
yr
n .1726022920816388 2.1715e-09 deg/d
Q 3.626529388494677 3.0417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      10274 days (28.13 yr)  
   first obs. used      1991-09-08  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55944  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:26:06  

Additional Information
 Earth MOID = 1.75967 au 
 Jupiter MOID = 1.3366 au 
 T_jup = 3.180 
[ 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 14.7   n/a MPO436105  
diameter diameter 6.139 km 1.473 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46249 (2001 HQ22)          Discovered 2001-Apr-25 by Yeung, W. K. Y. at Desert Beaver
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HQ22 = 2000 CJ145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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