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18464 (1995 SK23)
Classification: Main-belt Asteroid          SPK-ID: 2018464
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1441216596069699 4.8417e-08  
a 2.811757272307471 1.3898e-08 au
q 2.406522147810552 1.3333e-07 au
i 9.060438644640408 5.6868e-06 deg
node 24.14681941617312 2.453e-05 deg
peri 41.67353627810402 3.2804e-05 deg
M 80.86332406227325 1.8231e-05 deg
tp 2458813.675247186078
(2019-Nov-26.17524719)
8.7549e-05 TDB
period 1722.126967050843
4.71
1.2768e-05
3.496e-08
d
yr
n .2090438201641445 1.5499e-09 deg/d
Q 3.216992396804391 1.5901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1328  
   data-arc span      14388 days (39.39 yr)  
   first obs. used      1981-10-25  
   last obs. used      2021-03-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50179  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:29:39  

Additional Information
 Earth MOID = 1.42729 au 
 Jupiter MOID = 2.166 au 
 T_jup = 3.287 
[ 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 14.36   n/a E2021B10  

18464 (1995 SK23)          Discovered 1995-Sep-19 by Spacewatch at Kitt Peak
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 SK23 = 1981 UW29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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