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JPL Small-Body Database Browser
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66443 (1999 NW57)
Classification: Main-belt Asteroid          SPK-ID: 2066443
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2515893689931501 4.0052e-08  
a 2.570030510049431 1.4901e-08 au
q 1.923438155732951 1.089e-07 au
i 13.46271527497777 6.6592e-06 deg
node 161.3720649406673 2.3365e-05 deg
peri 115.5078935145405 3.2337e-05 deg
M 32.05597645294932 2.6202e-05 deg
tp 2458866.497668367639
(2020-Jan-17.99766837)
0.00010864 TDB
period 1504.893774128399
4.12
1.3088e-05
3.583e-08
d
yr
n .2392195423949467 2.0805e-09 deg/d
Q 3.216622864365911 1.865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      768  
   data-arc span      10100 days (27.65 yr)  
   first obs. used      1991-09-07  
   last obs. used      2019-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60756  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:28:08  

Additional Information
 Earth MOID = .950796 au 
 Jupiter MOID = 2.12177 au 
 T_jup = 3.348 
[ 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 15.2   n/a MPO436245  

66443 (1999 NW57)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 NW57 = 1998 DF28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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