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24530 (2001 CP18)
Classification: Jupiter Trojan          SPK-ID: 2024530
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1188688177000861 6.1786e-08  
a 5.140389682852391 1.145e-07 au
q 4.529357638734007 3.8561e-07 au
i 11.43190791075964 6.2022e-06 deg
node 149.8397733107232 2.7024e-05 deg
peri 249.5496213971476 3.8881e-05 deg
M 319.1257091812411 3.188e-05 deg
tp 2459483.826070568877
(2021-Sep-26.32607057)
0.00038237 TDB
period 4256.890625364465
11.65
0.00014223
3.894e-07
d
yr
n .08456876901063851 2.8256e-09 deg/d
Q 5.751421726970776 1.2811e-07 au
  Orbit Determination Parameters
   # obs. used (total)      875  
   data-arc span      14497 days (39.69 yr)  
   first obs. used      1980-03-21  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58416  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:12:30  

Additional Information
 Earth MOID = 3.55834 au 
 Jupiter MOID = .0555399 au 
 T_jup = 2.947 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456619.5 (2013-Nov-23.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184551393023174 6.1776e-08  
q 4.531392425395068 3.8556e-07 au
tp 2455233.243514598830
(2010-Feb-05.74351460)
0.00035922 TDB
node 149.9003963654282 2.7042e-05 deg
peri 249.7631252998391 3.8932e-05 deg
i 11.42736928964027 6.2011e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      875  
   data-arc span      14497 days (39.69 yr)  
   first obs. used      1980-03-21  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58416  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:12:30  

Additional Information
 Jupiter MOID = .0555399 au 
 T_jup = 2.947 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.816310559012691E-15 -2.325378016705237E-14 -3.468907513312206E-12 -9.580535338915848E-15 -4.276162064718457E-13 2.404075495898945E-15
q -2.325378016705237E-14 1.486541034034964E-13 1.680203712509654E-11 6.91773391940778E-14 2.522489395630313E-12 -1.003919960098335E-14
tp -3.468907513312206E-12 1.680203712509654E-11 1.290400870234562E-7 2.036011223967759E-11 1.004214061850663E-8 -5.584415534083241E-12
node -9.580535338915848E-15 6.91773391940778E-14 2.036011223967759E-11 7.312871089313856E-10 -7.140349256585984E-10 2.986724409002668E-11
peri -4.276162064718457E-13 2.522489395630313E-12 1.004214061850663E-8 -7.140349256585984E-10 1.515674063931606E-9 -2.963132992145653E-11
i 2.404075495898945E-15 -1.003919960098335E-14 -5.584415534083241E-12 2.986724409002668E-11 -2.963132992145653E-11 3.845352966045921E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.6   n/a MPO416959  
diameter diameter 25.883 km 1.104 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 45.2 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D. (2015) http://www.planetarysciences.org/PHP/CS3_Lightcurves.php]
geometric albedo albedo 0.073   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

24530 (2001 CP18)          Discovered 2001-Feb-02 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 CP18 = 2000 AN177 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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