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215956 (2005 NW40)
Classification: Main-belt Asteroid          SPK-ID: 2215956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05596736776211812 5.6153e-08  
a 2.678528580782884 2.4391e-08 au
q 2.528618386640864 1.3968e-07 au
i 5.434561996421351 4.751e-06 deg
node 127.6817043323852 6.8538e-05 deg
peri 198.734129412465 8.8642e-05 deg
M 114.5141651073395 5.7607e-05 deg
tp 2458491.169639794226
(2019-Jan-07.66963979)
0.00025377 TDB
period 1601.189944512171
4.38
2.1871e-05
5.988e-08
d
yr
n .2248327884107966 3.071e-09 deg/d
Q 2.828438774924904 2.5756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      6736 days (18.44 yr)  
   first obs. used      2001-05-22  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51807  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:01:02  

Additional Information
 Earth MOID = 1.51703 au 
 Jupiter MOID = 2.36225 au 
 T_jup = 3.369 
[ 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 16.4   n/a MPO454551  
diameter diameter 3.139 km 0.895 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215956 (2005 NW40)          Discovered 2005-Jul-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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