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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2191302197110078 3.5951e-08  
a 2.366911751375942 7.8846e-09 au
q 1.848249859260366 8.5856e-08 au
i 3.35432762622724 4.2676e-06 deg
node 12.01983741716591 5.9275e-05 deg
peri 3.61190953914836 5.9818e-05 deg
M 28.40383065460116 9.9703e-06 deg
tp 2459291.558820886179
(2021-Mar-18.05882089)
3.6518e-05 TDB
period 1330.060897080299
3.64
6.646e-06
1.82e-08
d
yr
n .2706642987477182 1.3525e-09 deg/d
Q 2.885573643491519 9.6124e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      9214 days (25.23 yr)  
   first obs. used      1995-09-21  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52305  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:50:01  

Additional Information
 Earth MOID = .848685 au 
 Jupiter MOID = 2.5812 au 
 T_jup = 3.512 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456507.5 (2013-Aug-03.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2186039404254537 3.57e-08  
q 1.849837677983002 8.5185e-08 au
tp 2456631.677464376586
(2013-Dec-05.17746438)
3.0776e-05 TDB
node 12.14846533330963 5.9329e-05 deg
peri 3.661875982774001 5.988e-05 deg
i 3.35324377839778 4.2635e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      9214 days (25.23 yr)  
   first obs. used      1995-09-21  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52305  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:50:01  

Additional Information
 Jupiter MOID = 2.5812 au 
 T_jup = 3.512 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.274487085079842E-15 -3.033122298655714E-15 -2.010837901238605E-13 2.681874829184876E-15 -7.572620852648802E-14 -6.633907040563484E-16
q -3.033122298655714E-15 7.256475135938879E-15 5.275126842696379E-13 -6.49076502444157E-15 1.910941877378791E-13 1.609437711511836E-15
tp -2.010837901238605E-13 5.275126842696379E-13 9.471665724256205E-10 3.454906404955387E-12 2.578980923634348E-10 -1.849755314422026E-13
node 2.681874829184876E-15 -6.49076502444157E-15 3.454906404955387E-12 3.519962116804521E-9 -3.512775406598066E-9 -4.041959656675552E-11
peri -7.572620852648802E-14 1.910941877378791E-13 2.578980923634348E-10 -3.512775406598066E-9 3.585579300840444E-9 4.02991147678398E-11
i -6.633907040563484E-16 1.609437711511836E-15 -1.849755314422026E-13 -4.041959656675552E-11 4.02991147678398E-11 1.817714573114839E-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 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

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