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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3011395023990233 2.0024e-08  
a 3.076370199259818 1.4538e-08 au
q 2.149953608259533 6.3426e-08 au
i 23.40688027545699 1.2161e-06 deg
node 247.2096655667019 1.3281e-06 deg
peri 54.97816407667794 6.4528e-06 deg
M 345.1095973402234 3.9451e-06 deg
tp 2459282.019266176675
(2021-Mar-08.51926618)
2.1955e-05 TDB
period 1970.862473912661
5.40
1.3971e-05
3.825e-08
d
yr
n .1826611469674538 1.2948e-09 deg/d
Q 4.002786790260104 1.8916e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1512  
   data-arc span      17503 days (47.92 yr)  
   first obs. used      1972-10-05  
   last obs. used      2020-09-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:58:20  

Additional Information
 Earth MOID = 1.2103 au 
 Jupiter MOID = 1.51492 au 
 T_jup = 3.037 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457017.5 (2014-Dec-26.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2994760104741274 2.0062e-08  
q 2.155598202026747 6.3547e-08 au
tp 2457311.297678343754
(2015-Oct-15.79767834)
1.751e-05 TDB
node 247.2185803421963 1.3274e-06 deg
peri 55.0521162096386 6.4929e-06 deg
i 23.40294834971065 1.2161e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1512  
   data-arc span      17503 days (47.92 yr)  
   first obs. used      1972-10-05  
   last obs. used      2020-09-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:58:20  

Additional Information
 Jupiter MOID = 1.51492 au 
 T_jup = 3.037 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.024755660089344E-16 -1.258045066779615E-15 1.393812205718649E-13 2.535099521741755E-15 7.758108680955306E-14 -6.522658847350183E-15
q -1.258045066779615E-15 4.038211459998075E-15 -4.347688001335361E-13 -8.194051062251357E-15 -2.448881267011942E-13 2.161707881626378E-14
tp 1.393812205718649E-13 -4.347688001335361E-13 3.065998814800797E-10 -4.462881976902032E-13 1.087766600925542E-10 5.116217454455751E-12
node 2.535099521741755E-15 -8.194051062251357E-15 -4.462881976902032E-13 1.76187222459833E-12 -1.182327941784842E-12 5.910990599217438E-13
peri 7.758108680955306E-14 -2.448881267011942E-13 1.087766600925542E-10 -1.182327941784842E-12 4.215711270093239E-11 2.334089985103353E-13
i -6.522658847350183E-15 2.161707881626378E-14 5.116217454455751E-12 5.910990599217438E-13 2.334089985103353E-13 1.478837470100684E-12

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 12.64   n/a E2021B10  
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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