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24838 Abilunon (1995 UJ2)
Classification: Main-belt Asteroid          SPK-ID: 2024838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2191302196271328 3.5936e-08  
a 2.366911751315313 7.8786e-09 au
q 1.848249859411547 8.5813e-08 au
i 3.354327592369307 4.2662e-06 deg
node 12.01983850913295 5.9268e-05 deg
peri 3.611908702272311 5.9812e-05 deg
M 28.40383051106207 9.9634e-06 deg
tp 2459291.558821420532
(2021-Mar-18.05882142)
3.6493e-05 TDB
period 1330.060897029193
3.64
6.6409e-06
1.818e-08
d
yr
n .270664298758118 1.3514e-09 deg/d
Q 2.885573643219079 9.605e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1399  
   data-arc span      9447 days (25.86 yr)  
   first obs. used      1995-09-21  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52253  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:21:33  

Additional Information
 Earth MOID = .848685 au 
 Jupiter MOID = 2.5812 au 
 T_jup = 3.512 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456511.5 (2013-Aug-07.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2186023980262465 3.5685e-08  
q 1.849836165038874 8.5143e-08 au
tp 2456631.678610026302
(2013-Dec-05.17861003)
3.0765e-05 TDB
node 12.14840885320878 5.9323e-05 deg
peri 3.662405658989485 5.9873e-05 deg
i 3.353246908230654 4.262e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1399  
   data-arc span      9447 days (25.86 yr)  
   first obs. used      1995-09-21  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52253  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:21:33  

Additional Information
 Jupiter MOID = 2.5812 au 
 T_jup = 3.512 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.273424260435687E-15 -3.030349712562727E-15 -2.002303016949281E-13 2.678627712939652E-15 -7.553693340095218E-14 -6.627479313584932E-16
q -3.030349712562727E-15 7.249246235992198E-15 5.25291146200727E-13 -6.48523341378788E-15 1.906040441973496E-13 1.608272346150738E-15
tp -2.002303016949281E-13 5.25291146200727E-13 9.464940393604787E-10 3.442462955910213E-12 2.577666447935703E-10 -1.836626732981928E-13
node 2.678627712939652E-15 -6.48523341378788E-15 3.442462955910213E-12 3.519193591105002E-9 -3.51201124582761E-9 -4.031776294924068E-11
peri -7.553693340095218E-14 1.906040441973496E-13 2.577666447935703E-10 -3.51201124582761E-9 3.584789213312081E-9 4.019778371680249E-11
i -6.627479313584932E-16 1.608272346150738E-15 -1.836626732981928E-13 -4.031776294924068E-11 4.019778371680249E-11 1.816478281690913E-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 14.93   n/a E2021B10  

24838 Abilunon           Discovered 1995 Oct. 23 by M. Tichy at Klet.
Abilunon is the presumed name of an ancient Celtic town, founded in the first century B.C. on a strategic peninsula in the Vltava river. The remains of the town are at the foot of Klet mountain. The name was mentioned on a map of the world by Ptolemy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011101/MPCPages.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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