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18586 (1997 YD3)
Classification: Main-belt Asteroid          SPK-ID: 2018586
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1754854529513365 4.8185e-08  
a 2.472854893120909 1.0174e-08 au
q 2.038904832118657 1.1476e-07 au
i 6.491772391202296 3.9444e-06 deg
node 131.1412175207718 3.4096e-05 deg
peri 33.01399250808951 3.5482e-05 deg
M 232.4912624745124 1.2553e-05 deg
tp 2459503.576257005240
(2021-Oct-16.07625701)
5.1735e-05 TDB
period 1420.353271756652
3.89
8.7658e-06
2.4e-08
d
yr
n .2534580707198023 1.5642e-09 deg/d
Q 2.90680495412316 1.196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1982  
   data-arc span      10401 days (28.48 yr)  
   first obs. used      1991-06-06  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51326  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:29:44  

Additional Information
 Earth MOID = 1.05061 au 
 Jupiter MOID = 2.07747 au 
 T_jup = 3.453 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO319317  
diameter diameter 2.339 km 0.489 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 1.000   0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18586 (1997 YD3)          Discovered 1997-Dec-24 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 YD3 = 1991 LX4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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