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216400 (2008 EX88)
Classification: Main-belt Asteroid          SPK-ID: 2216400
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03639954184357577 4.8871e-08  
a 3.182005857778727 3.2911e-08 au
q 3.066182302412007 1.4912e-07 au
i 9.796634389436605 4.962e-06 deg
node 67.70306614928823 3.36e-05 deg
peri 70.47845485383432 8.9151e-05 deg
M 110.8965090793232 8.0389e-05 deg
tp 2458561.846548658757
(2019-Mar-19.34654866)
0.00046342 TDB
period 2073.241478849361
5.68
3.2165e-05
8.806e-08
d
yr
n .1736411333038727 2.6939e-09 deg/d
Q 3.297829413145448 3.4109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      453  
   data-arc span      6710 days (18.37 yr)  
   first obs. used      2002-01-08  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:39  

Additional Information
 Earth MOID = 2.09841 au 
 Jupiter MOID = 1.77042 au 
 T_jup = 3.175 
[ 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 15.16   n/a E2021B55  
diameter diameter 5.513 km 0.716 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216400 (2008 EX88)          Discovered 2008-Mar-08 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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