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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457157.5 (2015-May-15.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05768167515762716 5.6243e-08  
q 2.523126136975691 1.402e-07 au
tp 2456885.864424581324
(2014-Aug-16.36442458)
0.00024021 TDB
node 127.7855415181193 6.8509e-05 deg
peri 197.6451231828131 8.7671e-05 deg
i 5.436302620592319 4.7553e-06 deg
  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
 Jupiter MOID = 2.36225 au 
 T_jup = 3.369 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.163264686534813E-15 -7.808012944042713E-15 5.6693806412859E-12 -1.566715215233913E-14 1.256761707736566E-12 -1.165782396729055E-15
q -7.808012944042713E-15 1.965533359280157E-14 -1.369723394796254E-11 3.702124603269505E-14 -3.019518527545657E-12 3.131227737752446E-15
tp 5.6693806412859E-12 -1.369723394796254E-11 5.769908877172772E-8 -1.195960549776386E-10 1.320234348609808E-8 -1.421025200516386E-11
node -1.566715215233913E-14 3.702124603269505E-14 -1.195960549776386E-10 4.693448352956062E-9 -4.698910773563911E-9 7.891203776135489E-11
peri 1.256761707736566E-12 -3.019518527545657E-12 1.320234348609808E-8 -4.698910773563911E-9 7.686152988557138E-9 -8.174836266721002E-11
i -1.165782396729055E-15 3.131227737752446E-15 -1.421025200516386E-11 7.891203776135489E-11 -8.174836266721002E-11 2.261289310296582E-11

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

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