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JPL Small-Body Database Browser
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66331 (1999 JY59)
Classification: Main-belt Asteroid          SPK-ID: 2066331
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2081714728096598 3.7246e-08  
a 2.386664306046897 8.7963e-09 au
q 1.88982888235487 8.7483e-08 au
i 2.760928209262507 4.4311e-06 deg
node 140.8646873969709 6.2767e-05 deg
peri 148.9364722597854 6.3499e-05 deg
M 220.0778884207235 9.2486e-06 deg
tp 2459523.942864158656
(2021-Nov-05.44286416)
3.6116e-05 TDB
period 1346.74519252342
3.69
7.4454e-06
2.038e-08
d
yr
n .2673111454182819 1.4778e-09 deg/d
Q 2.883499729738924 1.0627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1269  
   data-arc span      7573 days (20.73 yr)  
   first obs. used      1999-05-10  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53745  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:55:16  

Additional Information
 Earth MOID = .874217 au 
 Jupiter MOID = 2.30035 au 
 T_jup = 3.503 
[ 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 15.3   n/a MPO453059  
diameter diameter 2.553 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.247   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

66331 (1999 JY59)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JY59 = 2000 WY46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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