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EN060205 "Velenje" fireball
February 6, 2005, T= 22h 32m 25.0s ± 0.3s UT
Atmospheric trajectory data
| Beginning | Max. light | Terminal |
|---|
| Velocity [km/s] | 22.7 ± 0.1 | 21.5 | 20.0 ± 1.0 |
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| Height [km] | 79.83 ± 0.02 | 52.6 | 34.71 ± 0.03 |
|---|
| Longitude [°E] | 15.17447 ±
0.00007 | 15.161 | 15.15360 ±
0.00007 |
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| Latitude [°N] | 46.0872 ±
0.0005 | 46.333 | 46.4970 ±
0.0005 |
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| Photometric mass [kg] | 150 | 50 | < 0.1 |
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| Absolute magnitude | -5.0 | -14.2 | -5.5 |
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| Slope [o] | 44.64 ± 0.06 | - | 44.25 ± 0.06 |
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| Total length [km] | 64.4 |
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| Duration [s] | 3.0 |
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| Ablation coefficient [s2km-2] | 0.17 ± 0.07 (NF solution) |
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| PE coefficient | -5.10 |
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| Fireball type | II or IIIA |
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Stations: EN 15 Telc, EN 20 Ondrejov (horizontal), EN 21 Modra, EN 16 Lysa hora, EN 4A Churanov (guided), A3N-2 Crni Vrh
Radiant data (J2000.0)
| Observed | Geocentric | Heliocentric |
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| Right ascension [°] | 131.794 ± 0.012 | 130.94 ± 0.03 | - |
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| Declination [°] | 0.78 ± 0.06 | -2.51 ± 0.07 | - |
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| Ecliptical longitude [°] | - | - | 78.25 ± 0.14 |
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| Ecliptical latitude [°] | - | - | -10.47 ± 0.04 |
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| Initial velocity [km/s] | 22.70 ± 0.10 | 19.77 ± 0.11 | 37.04 ± 0.07 |
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Orbital data (J2000.0)
| a [AU] | 2.08 ± 0.03 | | w [°] | 76.66 ± 0.05 |
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| e | 0.672 ± 0.005 | | W [°] | 138.18390 ± 0.000010 |
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| q [AU] | 0.6813 ± 0.0011 | | i [°] | 12.05 ± 0.06 |
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| Q [AU] | 3.47 ± 0.05 | | | |
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Shower: sporadic
Note: Standard deviation for one measured point on the atmospheric trajectory from 5 stations is ± 28 meters (!) though the fireball was very far from the stations (280-465 km!). The most precise results are from the Ondrejov (st.20) long focus (300 mm) Tessar camera. Time of the fireball passage (given for beginning) is determined from the precise radiometer record.
The calculations and data courtesy by Dr. Pavel Spurny (Astronomical Institute of the Academy of Sciences of the Czech Republic)
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International Meteor Organization (IMO) - Fireball observations
AMS Fireball monitoring program
European Fireball Network (CZ)
European Fireball Network (DE)
Spanish Photographic Meteor Network (SPMN)
Japan Fireball Network (JN)
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