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243914 (2001 HY22)
Classification: Main-belt Asteroid          SPK-ID: 2243914
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2295861498790138 6.0848e-08  
a 3.13138119218566 3.3982e-08 au
q 2.412459440468198 2.0051e-07 au
i 19.34268325587653 6.8656e-06 deg
node 84.57798261897378 1.6919e-05 deg
peri 115.6568722010384 2.2535e-05 deg
M 182.0810195083211 1.4621e-05 deg
tp 2460000.781221055212
(2023-Feb-25.28122106)
9.1965e-05 TDB
period 2023.961909992611
5.54
3.2946e-05
9.02e-08
d
yr
n .1778689599950595 2.8954e-09 deg/d
Q 3.850302943903122 4.1784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      6787 days (18.58 yr)  
   first obs. used      1999-12-12  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57232  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:34:52  

Additional Information
 Earth MOID = 1.47514 au 
 Jupiter MOID = 1.49563 au 
 T_jup = 3.087 
[ 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 MPO454791  
diameter diameter 7.740 km 0.452 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243914 (2001 HY22)          Discovered 2001-Apr-26 by Yeung, W. K. Y. at Desert Beaver
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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