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100275 (1994 WW12)
Classification: Main-belt Asteroid          SPK-ID: 2100275
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08423463807817534 4.2597e-08  
a 2.989859617144684 2.7269e-08 au
q 2.73800987438995 1.3257e-07 au
i 11.60742048898651 5.7587e-06 deg
node 286.0981441885255 2.7661e-05 deg
peri 148.9404380559827 5.0823e-05 deg
M 356.3940757430187 4.1071e-05 deg
tp 2459019.414232456514
(2020-Jun-18.91423246)		 0.00021543 TDB
period 1888.315782330173
5.17		 2.5834e-05
7.073e-08		 d
yr
n .1906460790979365 2.6082e-09 deg/d
Q 3.241709359899418 2.9566e-08 au
   Orbit Determination Parameters
   # obs. used (total)      410  
   data-arc span      9189 days (25.16 yr)  
   first obs. used      1994-11-28  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:03:12  

Additional Information
 Earth MOID = 1.76064 au 
 Jupiter MOID = 1.97273 au 
 T_jup = 3.220 
[ 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 15.3   n/a MPO453457  
diameter diameter 4.760 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100275 (1994 WW12)          Discovered 1994-Nov-28 by Spacewatch at Kitt Peak
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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