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100916 (1998 KU50)
Classification: Main-belt Asteroid          SPK-ID: 2100916
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09218535658245719 4.4191e-08  
a 3.138764101675846 2.6114e-08 au
q 2.849416013734642 1.4429e-07 au
i 17.04351112672303 4.7539e-06 deg
node 101.3431611637874 1.8188e-05 deg
peri 154.2671891174 3.4077e-05 deg
M 326.3885438738663 2.9436e-05 deg
tp 2459190.136210825806
(2020-Dec-06.63621083)
0.00016616 TDB
period 2031.124020366654
5.56
2.5348e-05
6.94e-08
d
yr
n .1772417618964565 2.212e-09 deg/d
Q 3.42811218961705 2.8522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      8084 days (22.13 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5565  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:30  

Additional Information
 Earth MOID = 1.84217 au 
 Jupiter MOID = 1.72383 au 
 T_jup = 3.137 
[ 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 MPO469016  
diameter diameter 4.576 km 0.582 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100916 (1998 KU50)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 KU50 = 2001 YQ77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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