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JPL Small-Body Database Browser
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19565 (1999 KF4)
Classification: Main-belt Asteroid          SPK-ID: 2019565
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3009168877616289 4.7983e-08  
a 3.075312688161953 1.9294e-08 au
q 2.149899165146409 1.5289e-07 au
i 23.4096513981297 6.3718e-06 deg
node 247.2108121414826 1.2541e-05 deg
peri 55.00518578496839 1.6278e-05 deg
M 308.5331472742131 1.1956e-05 deg
tp 2459282.116085537205
(2021-Mar-08.61608554)
6.7309e-05 TDB
period 1969.846326791178
5.39
1.8538e-05
5.075e-08
d
yr
n .1827553728957271 1.7199e-09 deg/d
Q 4.000726211177498 2.51e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1231  
   data-arc span      17284 days (47.32 yr)  
   first obs. used      1972-10-05  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:50:50  

Additional Information
 Earth MOID = 1.21203 au 
 Jupiter MOID = 1.51752 au 
 T_jup = 3.038 
[ 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 12.6   n/a MPO435881  
diameter diameter 17.066 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.055   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

19565 (1999 KF4)          Discovered 1999-May-20 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 KF4 = 1972 TB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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