Large fireball on 26 April 2015


Fireball date: 26 April 2015 at 21:10:13 UT

Fireball ID: M20150426_211013


We have received over 60 public reports about a fireball spotted on 26 April 2015 at 22:10PM. First image is from Graham Roche and it looks like a very large fireball, could be around -10 magnitude or even brighter.

M20150426_211015_DL1_P

Credit: Graham Roche, Dublin, Ireland

Another images are from our Steve Hooks from Northern Ireland (UKMON Scotch Street station C3)

M20150426_211013_Scotch_St_C3P

Graham’ Youtube Video:

And Vimeo:

M20150426_211006_Scotch_St_C1P

Beginning of fireball captured by another Scotch Street camera and also Richard Fleet (UKMON Wilcot station) has captured this fireball over 450 km away.

M20150426_211014_Wilcot_NWP

Richard’s Video:

Big thanks to American Meteor Society and International Meteor Organization we have projected ground map from all public reports.

meteor 26 april 2015

Results:

Cooperating with our colleagues from other European networks we managed to get some rough calculations done, although with some level of inaccuracy we came to interesting conclusions:

  • Initial velocity was very low, just 8.3 km/s
  • Initial height 78 km
  • Terminal height 31-32 km!
  • Very steep entry angle
  • The explosion was estimated at around -12 magnitude
  • If anything has survived the final explosion it would not be more than 30-50 grams at most

And we have a ground map:

Fireball 26 April 2015 22:10 observed ground map

Orbit elements are:  a = 2.442 AU, q = 1.004 AU, e = 0.588, i = 3.818°, peri = 5.317°, node = 216.104°

Fireball 26 April 2015 22:10 orbit data

And finally projected to Google Earth:

Fireball 26 April 2015 22:10 Google Earth projected to Google Earth

If you would like to see yourself here is the KML file free to download.

Fireball 26 April 2015 22:10 Google Earth KML file