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JPL Small-Body Database Browser
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461636 (2005 ET197)
Classification: Main-belt Asteroid          SPK-ID: 2461636
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2787370232152692 1.849e-07  
a 3.1022140097761 3.7886e-08 au
q 2.237512111314406 5.6822e-07 au
i 19.50045808334074 9.9865e-06 deg
node 103.2991624281081 3.2425e-05 deg
peri 100.8239416964571 4.6626e-05 deg
M 211.2214216433872 1.9425e-05 deg
tp 2459425.291094006046
(2021-Jul-29.79109401)
0.00011221 TDB
period 1995.74963762906
5.46
3.656e-05
1.001e-07
d
yr
n .1803833472958453 3.3045e-09 deg/d
Q 3.966915908237794 4.8447e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      4571 days (12.51 yr)  
   first obs. used      2005-03-11  
   last obs. used      2017-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54468  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 12:26:39  

Additional Information
 Earth MOID = 1.32667 au 
 Jupiter MOID = 1.62039 au 
 T_jup = 3.075 
[ 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 15.7   n/a MPO386704  
diameter diameter 4.381 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

461636 (2005 ET197)          Discovered 2005-Mar-11 by CSS at Catalina
Reference: Last Updated: 2016-03-24

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