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35627 (1998 KW9)
Classification: Main-belt Asteroid          SPK-ID: 2035627
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2225780208079956 4.082e-08  
a 3.141348923726969 2.2508e-08 au
q 2.442153697616493 1.3387e-07 au
i 9.244775011839996 4.3414e-06 deg
node 285.8902739130858 3.2368e-05 deg
peri 35.3514071352248 3.4312e-05 deg
M 276.6665430956729 1.366e-05 deg
tp 2459471.249200629761
(2021-Sep-13.74920063)
7.9618e-05 TDB
period 2033.633531143171
5.57
2.1856e-05
5.984e-08
d
yr
n .1770230449522694 1.9025e-09 deg/d
Q 3.840544149837445 2.7517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1499  
   data-arc span      8060 days (22.07 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:31:23  

Additional Information
 Earth MOID = 1.43597 au 
 Jupiter MOID = 1.51602 au 
 T_jup = 3.152 
[ 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 12.9   n/a MPO263643  
diameter diameter 15.147 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.065   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

35627 (1998 KW9)          Discovered 1998-May-24 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KW9 = 1999 RP123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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