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21347 (1997 EO11)
Classification: Main-belt Asteroid          SPK-ID: 2021347
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1637197803622304 4.1274e-08  
a 2.691665581673462 1.3122e-08 au
q 2.250986683833308 1.1278e-07 au
i 14.21461049220608 3.7004e-06 deg
node 111.796757994691 1.9144e-05 deg
peri 314.3066099126127 2.2594e-05 deg
M 218.4982114921586 1.4056e-05 deg
tp 2459834.500363794797
(2022-Sep-12.00036379)
6.5589e-05 TDB
period 1612.984071600473
4.42
1.1795e-05
3.229e-08
d
yr
n .2231888127963919 1.632e-09 deg/d
Q 3.132344479513617 1.527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1605  
   data-arc span      8589 days (23.52 yr)  
   first obs. used      1997-03-03  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:57:32  

Additional Information
 Earth MOID = 1.28848 au 
 Jupiter MOID = 2.181 au 
 T_jup = 3.309 
[ 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 13.91   n/a E2021B10  
diameter diameter 3.823 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.400   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21347 (1997 EO11)          Discovered 1997-Mar-03 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 EO11 = 2000 WS48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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