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35643 (1998 KN55)
Classification: Main-belt Asteroid          SPK-ID: 2035643
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1367646188176327 3.1282e-08  
a 2.793039279638335 1.2378e-08 au
q 2.411050327215922 8.7827e-08 au
i 9.056770063437607 3.839e-06 deg
node 176.8395297047466 2.1914e-05 deg
peri 280.2435879889082 2.7714e-05 deg
M 47.22848764443321 1.4658e-05 deg
tp 2458776.825986813640
(2019-Oct-20.32598681)
6.9704e-05 TDB
period 1704.95920498908
4.67
1.1334e-05
3.103e-08
d
yr
n .2111487471058322 1.4037e-09 deg/d
Q 3.175028232060746 1.4071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1939  
   data-arc span      8052 days (22.05 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47425  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:31:49  

Additional Information
 Earth MOID = 1.4477 au 
 Jupiter MOID = 2.04273 au 
 T_jup = 3.296 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457286.5 (2015-Sep-21.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363674788843438 3.1425e-08  
q 2.413586867544364 8.8456e-08 au
tp 2457075.213424979956
(2015-Feb-21.71342498)
7.2935e-05 TDB
node 176.8542951750704 2.1912e-05 deg
peri 280.9970055057232 2.7698e-05 deg
i 9.054535464039056 3.8393e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1939  
   data-arc span      8052 days (22.05 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47425  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:31:49  

Additional Information
 Jupiter MOID = 2.04273 au 
 T_jup = 3.296 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.87538424101984E-16 -2.758808746763186E-15 3.071986089901007E-13 -3.040499295596119E-15 5.913519297740699E-14 -3.795861900075349E-15
q -2.758808746763186E-15 7.824453584386887E-15 -1.160096125514608E-12 8.561332398713059E-15 -2.314585378738887E-13 1.096364241576265E-14
tp 3.071986089901007E-13 -1.160096125514608E-12 5.319442649557876E-9 -6.118641705248975E-12 1.247391604145037E-9 -4.145748814904507E-12
node -3.040499295596119E-15 8.561332398713059E-15 -6.118641705248975E-12 4.801458585334299E-10 -4.752253288064732E-10 -1.359690326314979E-11
peri 5.913519297740699E-14 -2.314585378738887E-13 1.247391604145037E-9 -4.752253288064732E-10 7.671768202937685E-10 1.258216487798689E-11
i -3.795861900075349E-15 1.096364241576265E-14 -4.145748814904507E-12 -1.359690326314979E-11 1.258216487798689E-11 1.474047057808162E-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 13.6   n/a MPO452668  
diameter diameter 5.058 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.397   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35643 (1998 KN55)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KN55 = 1999 RR128 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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