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14957 (1996 HQ22)
Classification: Main-belt Asteroid          SPK-ID: 2014957
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2081495190514188 3.0979e-08  
a 2.660483070027576 9.2901e-09 au
q 2.106704798556894 8.0965e-08 au
i 4.623794718917378 3.9963e-06 deg
node 214.9518394836683 4.2114e-05 deg
peri 142.247136714419 4.3207e-05 deg
M 132.6368431682201 1.0278e-05 deg
tp 2458616.516129135442
(2019-May-13.01612914)
4.4192e-05 TDB
period 1585.036167097299
4.34
8.3022e-06
2.273e-08
d
yr
n .2271241549391732 1.1896e-09 deg/d
Q 3.214261341498258 1.1224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1487  
   data-arc span      9515 days (26.05 yr)  
   first obs. used      1995-02-25  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55768  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:43:40  

Additional Information
 Earth MOID = 1.10357 au 
 Jupiter MOID = 2.25717 au 
 T_jup = 3.350 
[ 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 14.61   n/a E2021B10  
diameter diameter 4.017 km 0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.214   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14957 (1996 HQ22)          Discovered 1996-Apr-20 by Elst, E. W. at La Silla
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 HQ22 = 1997 TC11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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