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JPL Small-Body Database Browser
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108637 (2001 NE4)
Classification: Main-belt Asteroid          SPK-ID: 2108637
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05542338818397147 5.3825e-08  
a 2.384333242528455 1.501e-08 au
q 2.252185415667853 1.2738e-07 au
i 4.934675141521327 5.5611e-06 deg
node 17.91063008858973 5.6046e-05 deg
peri 336.5190182361245 6.932e-05 deg
M 352.998436429417 4.2123e-05 deg
tp 2459026.654197149755
(2020-Jun-26.15419715)
0.00015741 TDB
period 1344.772618143616
3.68
1.2698e-05
3.477e-08
d
yr
n .2677032497114345 2.5278e-09 deg/d
Q 2.516481069389057 1.5841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      6067 days (16.61 yr)  
   first obs. used      2001-06-27  
   last obs. used      2018-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61504  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 04:16:16  

Additional Information
 Earth MOID = 1.24832 au 
 Jupiter MOID = 2.69307 au 
 T_jup = 3.529 
[ 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 16.5   n/a MPO436522  
diameter diameter 2.616 km 0.440 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108637 (2001 NE4)          Discovered 2001-Jul-13 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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