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100388 (1995 WW7)
Classification: Main-belt Asteroid          SPK-ID: 2100388
[ 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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2511560732606776 4.9933e-08  
a 3.07051790545043 1.7803e-08 au
q 2.2993386854409 1.5517e-07 au
i 12.49781867000879 4.7133e-06 deg
node 257.2258217612447 2.9375e-05 deg
peri 137.039827798789 3.2893e-05 deg
M 226.6146474784514 1.3206e-05 deg
tp 2459728.651114251872
(2022-May-29.15111425)		 7.5663e-05 TDB
period 1965.2412815592
5.38		 1.7091e-05
4.679e-08		 d
yr
n .183183613828008 1.5931e-09 deg/d
Q 3.841697125459961 2.2274e-08 au
   Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      8562 days (23.44 yr)  
   first obs. used      1995-11-24  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53653  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:34:27  

Additional Information
 Earth MOID = 1.32461 au 
 Jupiter MOID = 1.68666 au 
 T_jup = 3.146 
[ 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 14.3   n/a MPO469009  
diameter diameter 4.787 km 0.894 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.194   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100388 (1995 WW7)          Discovered 1995-Nov-28 by Kobayashi, T. at Oizumi
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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