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66442 (1999 NZ56)
Classification: Main-belt Asteroid          SPK-ID: 2066442
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2202138346188265 5.4033e-08  
a 2.6404186391627 1.5955e-08 au
q 2.058961925633659 1.4982e-07 au
i 14.42115309678575 4.3104e-06 deg
node 209.0704009872744 1.7276e-05 deg
peri 131.9019784375758 2.0107e-05 deg
M 347.307960248775 9.8313e-06 deg
tp 2459255.750540952061
(2021-Feb-10.25054095)
4.305e-05 TDB
period 1567.139335568372
4.29
1.4204e-05
3.889e-08
d
yr
n .2297179273273967 2.0821e-09 deg/d
Q 3.221875352691742 1.9469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1002  
   data-arc span      8293 days (22.70 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51008  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:22:12  

Additional Information
 Earth MOID = 1.08026 au 
 Jupiter MOID = 2.35387 au 
 T_jup = 3.317 
[ 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 14.59   n/a E2021B10  
diameter diameter 4.918 km 0.766 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.153   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66442 (1999 NZ56)          Discovered 1999-Jul-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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