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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1368299178570374 3.3286e-08  
a 2.793302569278086 1.5704e-08 au
q 2.411095208173914 9.6566e-08 au
i 9.056274023501595 5.1575e-06 deg
node 176.8505124040656 2.4408e-05 deg
peri 280.3375552274162 3.1052e-05 deg
M 322.6950724229943 1.9072e-05 deg
tp 2458777.201037122820
(2019-Oct-20.70103712)
9.0734e-05 TDB
period 1705.200291111808
4.67
1.438e-05
3.937e-08
d
yr
n .2111188942885275 1.7804e-09 deg/d
Q 3.175509930382258 1.7853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1489  
   data-arc span      7832 days (21.44 yr)  
   first obs. used      1998-05-23  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51112  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:38:21  

Additional Information
 Earth MOID = 1.44784 au 
 Jupiter MOID = 2.0432 au 
 T_jup = 3.296 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456616.5 (2013-Nov-20.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1356188562773998 3.3423e-08  
q 2.414461976286462 9.6797e-08 au
tp 2457074.966176129418
(2015-Feb-21.46617613)
8.8554e-05 TDB
node 176.8738323035042 2.4425e-05 deg
peri 280.9076197727062 3.1131e-05 deg
i 9.051309062246389 5.1552e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1489  
   data-arc span      7832 days (21.44 yr)  
   first obs. used      1998-05-23  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51112  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:38:21  

Additional Information
 Jupiter MOID = 2.0432 au 
 T_jup = 3.296 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.11712064825801E-15 -3.204370234562359E-15 -2.253360457412828E-13 -5.408065544735434E-16 -4.391963436721499E-14 -3.379963144389627E-15
q -3.204370234562359E-15 9.36956319419464E-15 7.47514689786852E-13 3.026144788126028E-15 1.347874578078602E-13 1.084889402864381E-14
tp -2.253360457412828E-13 7.47514689786852E-13 7.841823012081876E-9 9.207222416480065E-13 1.721325129209246E-9 2.972399562579038E-12
node -5.408065544735434E-16 3.026144788126028E-15 9.207222416480065E-13 5.965614048551111E-10 -5.884684887891705E-10 2.011200994553187E-11
peri -4.391963436721499E-14 1.347874578078602E-13 1.721325129209246E-9 -5.884684887891705E-10 9.691352121159104E-10 -1.921322190431777E-11
i -3.379963144389627E-15 1.084889402864381E-14 2.972399562579038E-12 2.011200994553187E-11 -1.921322190431777E-11 2.657591430919162E-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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