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24531 (2001 CE21)
Classification: Jupiter Trojan          SPK-ID: 2024531
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08962559653274009 4.8151e-08  
a 5.246500447657784 1.1815e-07 au
q 4.776279715327167 3.3479e-07 au
i 22.4915657855844 5.2623e-06 deg
node 190.5695934939062 1.0672e-05 deg
peri 237.0012621964384 3.7168e-05 deg
M 285.1979972386804 3.9502e-05 deg
tp 2460112.539658665493
(2023-Jun-17.03965867)
0.00049841 TDB
period 4389.378158326004
12.02
0.00014827
4.059e-07
d
yr
n .08201617336549893 2.7704e-09 deg/d
Q 5.716721179988401 1.2873e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1154  
   data-arc span      25583 days (70.04 yr)  
   first obs. used      1951-01-04  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48916  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:44:11  

Additional Information
 Earth MOID = 3.84099 au 
 Jupiter MOID = .0119416 au 
 T_jup = 2.840 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.73   n/a E2021B10  
diameter diameter 20.624 km 1.751 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.104   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

24531 (2001 CE21)          Discovered 2001-Feb-02 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 CE21 = 1997 UH26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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