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100904 (1998 KW10)
Classification: Main-belt Asteroid          SPK-ID: 2100904
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09333980165521505 4.9526e-08  
a 3.097679653664382 2.7284e-08 au
q 2.808542849199953 1.6341e-07 au
i 11.18934714154606 4.3428e-06 deg
node 125.9256146799532 3.0088e-05 deg
peri 239.0195191569691 4.1667e-05 deg
M 285.7777279433003 3.136e-05 deg
tp 2459611.067837828653
(2022-Jan-31.56783783)		 0.00017542 TDB
period 1991.375600916724
5.45		 2.631e-05
7.203e-08		 d
yr
n .1807795575250973 2.3884e-09 deg/d
Q 3.38681645812881 2.9831e-08 au
   Orbit Determination Parameters
   # obs. used (total)      410  
   data-arc span      8148 days (22.31 yr)  
   first obs. used      1998-04-29  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60671  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:17  

Additional Information
 Earth MOID = 1.82279 au 
 Jupiter MOID = 2.06607 au 
 T_jup = 3.187 
[ 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 15.21   n/a E2021B55  
diameter diameter 3.737 km 0.615 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100904 (1998 KW10)          Discovered 1998-May-22 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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