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43636 (2002 EC22)
Classification: Main-belt Asteroid          SPK-ID: 2043636
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1773254504030223 3.1758e-08  
a 2.285111350752158 6.9765e-09 au
q 1.879902951258973 7.3708e-08 au
i 4.538329819569093 3.6989e-06 deg
node 40.58283224877019 4.6009e-05 deg
peri 267.9613098802783 4.7446e-05 deg
M 32.66034704973007 1.0212e-05 deg
tp 2459086.033666324039
(2020-Aug-24.53366632)
3.5869e-05 TDB
period 1261.709805489846
3.45
5.7781e-06
1.582e-08
d
yr
n .2853271001252413 1.3067e-09 deg/d
Q 2.690319750245343 8.2137e-09 au
  Orbit Determination Parameters
   # obs. used (total)      972  
   data-arc span      17617 days (48.23 yr)  
   first obs. used      1972-10-09  
   last obs. used      2021-01-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52066  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:21:23  

Additional Information
 Earth MOID = .8701 au 
 Jupiter MOID = 2.5684 au 
 T_jup = 3.577 
[ 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 15.92   n/a E2021B10  
diameter diameter 1.730 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.178   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43636 (2002 EC22)          Discovered 2002-Mar-10 by JPL/NEAT at Haleakala
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 EC22 = 1972 TB9 = 1992 HZ = 1999 JC111 = 2000 WZ121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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