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66347 (1999 JW72)
Classification: Main-belt Asteroid          SPK-ID: 2066347
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1362987750175229 2.7951e-08  
a 2.274040698473602 6.993e-09 au
q 1.964091736931658 6.3043e-08 au
i 7.710121260430595 3.2794e-06 deg
node 75.63467780613374 2.59e-05 deg
peri 227.2478352751692 2.9482e-05 deg
M 45.66312970437953 1.3331e-05 deg
tp 2459041.623761211281
(2020-Jul-11.12376121)
4.6421e-05 TDB
period 1252.552033428695
3.43
5.7776e-06
1.582e-08
d
yr
n .2874132095051952 1.3257e-09 deg/d
Q 2.583989660015546 7.9461e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1483  
   data-arc span      7946 days (21.75 yr)  
   first obs. used      1999-05-12  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49063  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:21:31  

Additional Information
 Earth MOID = .955769 au 
 Jupiter MOID = 2.61456 au 
 T_jup = 3.586 
[ 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 15.27   n/a E2021B10  
diameter diameter 1.941 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.469   0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66347 (1999 JW72)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JW72 = 2000 UQ54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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