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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2783984133736704 1.1888e-07  
a 3.102664490961341 3.6934e-08 au
q 2.238887619446877 3.679e-07 au
i 19.50146944158057 9.8931e-06 deg
node 103.2963033825601 3.1337e-05 deg
peri 100.8192067435555 3.7648e-05 deg
M 283.341682995456 1.7541e-05 deg
tp 2459425.567038690308
(2021-Jul-30.06703869)
0.00010102 TDB
period 1996.184366002193
5.47
3.5644e-05
9.759e-08
d
yr
n .1803440634699393 3.2202e-09 deg/d
Q 3.966441362475805 4.7217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      5434 days (14.88 yr)  
   first obs. used      2005-03-11  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 12:41:24  

Additional Information
 Earth MOID = 1.32785 au 
 Jupiter MOID = 1.62058 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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