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JPL Small-Body Database Browser
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17471 (1991 EO2)
Classification: Main-belt Asteroid          SPK-ID: 2017471
[ 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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .157231434949141 3.9105e-08  
a 2.417860398139911 1e-08 au
q 2.037696738233671 9.3591e-08 au
i 1.719871809614883 3.8565e-06 deg
node 316.3913216038173 0.00014627 deg
peri 219.4592639565898 0.00014686 deg
M 164.4996343205188 1.6181e-05 deg
tp 2457973.008718455434
(2017-Aug-07.50871846)		 5.939e-05 TDB
period 1373.236252403429
3.76		 8.5196e-06
2.333e-08		 d
yr
n .2621544540277976 1.6264e-09 deg/d
Q 2.79802405804615 1.1573e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1382  
   data-arc span      10490 days (28.72 yr)  
   first obs. used      1991-03-11  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53215  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:19:58  

Additional Information
 Earth MOID = 1.04297 au 
 Jupiter MOID = 2.17095 au 
 T_jup = 3.498 
[ 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 14.4   n/a MPO350941  
diameter diameter 3.831 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17471 (1991 EO2)          Discovered 1991-Mar-11 by Debehogne, H. at La Silla
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 EO2 = 1992 OY1 = 1997 WT42 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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