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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569721832714509 3.8945e-08  
a 2.418513615116506 9.9312e-09 au
q 2.038874252679938 9.3292e-08 au
i 1.719785000386231 3.7913e-06 deg
node 316.3828271456848 0.00014614 deg
peri 219.3973894955934 0.00014673 deg
M 269.4146929565358 1.6611e-05 deg
tp 2459346.181781709971
(2021-May-11.68178171)
6.4793e-05 TDB
period 1373.792786901728
3.76
8.4619e-06
2.317e-08
d
yr
n .2620482531516974 1.6141e-09 deg/d
Q 2.798152977553073 1.149e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1415  
   data-arc span      10556 days (28.90 yr)  
   first obs. used      1991-03-11  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53213  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:05:13  

Additional Information
 Earth MOID = 1.04372 au 
 Jupiter MOID = 2.16946 au 
 T_jup = 3.497 
[ 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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