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15494 (1999 CX123)
Classification: Main-belt Asteroid          SPK-ID: 2015494
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335076864322303 3.824e-08  
a 2.665370664422746 1.1967e-08 au
q 2.309523193531329 9.9222e-08 au
i 15.1063486283109 3.9795e-06 deg
node 45.81340667765483 1.4472e-05 deg
peri 309.8011958345792 2.0082e-05 deg
M 142.2949494052233 1.5263e-05 deg
tp 2458572.265428312150
(2019-Mar-29.76542831)
6.6198e-05 TDB
period 1589.405996157753
4.35
1.0704e-05
2.931e-08
d
yr
n .2264997117604111 1.5254e-09 deg/d
Q 3.021218135314163 1.3565e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1726  
   data-arc span      22766 days (62.33 yr)  
   first obs. used      1958-11-11  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49753  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:00:04  

Additional Information
 Earth MOID = 1.33607 au 
 Jupiter MOID = 2.50827 au 
 T_jup = 3.322 
[ 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 13.75   n/a E2021B10  
diameter diameter 11.456 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15494 (1999 CX123)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CX123 = 1958 VO = 1984 US4 = 2000 GE107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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