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65221 (2002 ET22)
Classification: Main-belt Asteroid          SPK-ID: 2065221
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02732061559162829 5.2294e-08  
a 2.753885451740336 2.2137e-08 au
q 2.67864760592996 1.5137e-07 au
i 9.709941650534047 5.4879e-06 deg
node 123.0332637462108 4.5943e-05 deg
peri 318.7989361775558 0.00015453 deg
M 353.1997464456981 0.00014854 deg
tp 2458632.031152125996
(2019-May-28.53115213)
0.00068882 TDB
period 1669.234047630126
4.57
2.0127e-05
5.51e-08
d
yr
n .2156677791895662 2.6005e-09 deg/d
Q 2.829123297550711 2.2742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      8059 days (22.06 yr)  
   first obs. used      1996-12-12  
   last obs. used      2019-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5701  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:04:44  

Additional Information
 Earth MOID = 1.70227 au 
 Jupiter MOID = 2.24589 au 
 T_jup = 3.323 
[ 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 15.6   n/a MPO412591  
diameter diameter 3.592 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65221 (2002 ET22)          Discovered 2002-Mar-10 by NEAT at Haleakala
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 ET22 = 1997 CC10 = 1998 HL9 = 2000 WC181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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