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JPL Small-Body Database Browser
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66420 (1999 NA15)
Classification: Main-belt Asteroid          SPK-ID: 2066420
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2250756023581128 3.4888e-08  
a 2.345601751354794 9.1429e-09 au
q 1.81766402427637 8.2146e-08 au
i 6.517917806315922 4.0907e-06 deg
node 97.71371060484744 3.6243e-05 deg
peri 204.660975720677 3.737e-05 deg
M 285.0355064198973 9.4068e-06 deg
tp 2459273.732875983118
(2021-Feb-28.23287598)
3.4929e-05 TDB
period 1312.138996161118
3.59
7.6719e-06
2.1e-08
d
yr
n .2743611774768072 1.6041e-09 deg/d
Q 2.873539478433219 1.1201e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7519 days (20.59 yr)  
   first obs. used      1999-06-07  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56115  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:49:44  

Additional Information
 Earth MOID = .804485 au 
 Jupiter MOID = 2.36528 au 
 T_jup = 3.518 
[ 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 16.0   n/a MPO263856  
diameter diameter 1.535 km 0.536 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.298   0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66420 (1999 NA15)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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