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JPL Small-Body Database Browser
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52749 (1998 KN8)
Classification: Main-belt Asteroid          SPK-ID: 2052749
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06662106154882994 6.5547e-08  
a 3.133225995177249 2.1517e-08 au
q 2.924487153306152 2.0791e-07 au
i 22.78184259021921 5.9235e-06 deg
node 74.79398562654366 1.3296e-05 deg
peri 131.4408830934427 4.1662e-05 deg
M 15.72603863722759 3.7251e-05 deg
tp 2458912.008237303872
(2020-Mar-03.50823730)
0.00020986 TDB
period 2025.750750426887
5.55
2.0867e-05
5.713e-08
d
yr
n .177711892701576 1.8306e-09 deg/d
Q 3.341964837048347 2.295e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1001  
   data-arc span      8010 days (21.93 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52489  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:27:11  

Additional Information
 Earth MOID = 1.94893 au 
 Jupiter MOID = 1.76303 au 
 T_jup = 3.088 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457043.5 (2015-Jan-21.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06660410428642273 6.5197e-08  
q 2.924958687446153 2.0667e-07 au
tp 2456877.652662511493
(2014-Aug-08.15266251)
0.00021828 TDB
node 74.81867297498449 1.3295e-05 deg
peri 130.1422877395995 4.2048e-05 deg
i 22.7819986905476 5.9236e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1001  
   data-arc span      8010 days (21.93 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52489  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:27:11  

Additional Information
 Jupiter MOID = 1.76303 au 
 T_jup = 3.088 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.250606339080011E-15 -1.341061786929648E-14 3.645585678977508E-12 -1.969096703992801E-14 8.344865780239788E-13 -9.649841855670487E-15
q -1.341061786929648E-14 4.271208901718014E-14 -1.297001567615461E-11 5.953453234637993E-14 -2.886279389623702E-12 2.953555361125674E-14
tp 3.645585678977508E-12 -1.297001567615461E-11 4.764764381681415E-8 -6.215463534505637E-11 8.722010479186844E-9 8.642385036259678E-12
node -1.969096703992801E-14 5.953453234637993E-14 -6.215463534505637E-11 1.767446820627445E-10 -1.749497937448801E-10 -2.085004229254621E-11
peri 8.344865780239788E-13 -2.886279389623702E-12 8.722010479186844E-9 -1.749497937448801E-10 1.768013003994793E-9 2.022777824795344E-11
i -9.649841855670487E-15 2.953555361125674E-14 8.642385036259678E-12 -2.085004229254621E-11 2.022777824795344E-11 3.50890440455499E-11

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 13.8   n/a MPO474412  
diameter diameter 11.004 km 0.266 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52749 (1998 KN8)          Discovered 1998-May-23 by LONEOS at Anderson Mesa
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KN8 = 2000 TS59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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