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18564 Caseyo (1997 GO6)
Classification: Main-belt Asteroid          SPK-ID: 2018564
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184424760260395 3.378e-08  
a 3.102430486786846 1.3666e-08 au
q 2.734970938233141 1.0103e-07 au
i .09558572845147925 3.3764e-06 deg
node 65.83796636613596 0.0021885 deg
peri 125.0406764158238 0.0021885 deg
M 166.9191974737593 1.4989e-05 deg
tp 2458471.045006076736
(2018-Dec-18.54500608)
8.2643e-05 TDB
period 1995.958540746941
5.46
1.3188e-05
3.611e-08
d
yr
n .1803644678237046 1.1917e-09 deg/d
Q 3.46989003534055 1.5284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1954  
   data-arc span      15320 days (41.94 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50781  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:01:35  

Additional Information
 Earth MOID = 1.73582 au 
 Jupiter MOID = 1.48555 au 
 T_jup = 3.211 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457073.5 (2015-Feb-20.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1136370699172783 3.38e-08  
q 2.754038951740608 1.0056e-07 au
tp 2456467.832920653879
(2013-Jun-24.33292065)
8.7276e-05 TDB
node 64.81377756794956 0.0021597 deg
peri 126.0883731804459 0.0021598 deg
i .09678904650452681 3.3731e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1954  
   data-arc span      15320 days (41.94 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50781  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:01:35  

Additional Information
 Jupiter MOID = 1.48555 au 
 T_jup = 3.211 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.142441267298444E-15 -3.37771658051564E-15 -4.295345470141392E-13 -7.241114247185595E-14 -1.011624283601078E-14 -1.331158483402605E-16
q -3.37771658051564E-15 1.011184552525907E-14 1.190038078654849E-12 7.296322780607638E-14 1.634133894048401E-13 1.290745099881236E-16
tp -4.295345470141392E-13 1.190038078654849E-12 7.617016273448303E-9 2.120568220464054E-10 1.194311563834538E-9 5.737684015361507E-13
node -7.241114247185595E-14 7.296322780607638E-14 2.120568220464054E-10 4.664502211416664E-6 -4.664480582389806E-6 8.233071042858001E-10
peri -1.011624283601078E-14 1.634133894048401E-13 1.194311563834538E-9 -4.664480582389806E-6 4.664725176632827E-6 -8.232464903631731E-10
i -1.331158483402605E-16 1.290745099881236E-16 5.737684015361507E-13 8.233071042858001E-10 -8.232464903631731E-10 1.137799411238615E-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 13.68   n/a E2021B10  
diameter diameter 8.897 km 0.413 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18564 Caseyo           Discovered 1997 Apr. 2 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Casey O'Connell mentored a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors. He teaches at the Henry M. Gunn High School, Palo Alto, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Alternate Designations
 1997 GO6 = 1978 WX3 = 1991 FM1 = 1994 XQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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