Real-time meteoroid fluxes from video data

Talk presented at the International Meteor Conference 2013 in Poznan, Poland.

Transcript

1. Real-time meteoroid fluxes from video data A talk by Geert Barentsen for the International Meteor Conference 2013
2. Hello. I’m Geert Barentsen @GeertMcTwit www.geert.io github.com/barentsen
3. I do galactic astronomy during daytime The
4. I do meteors during nighttime I
5. Visual observations are awesome.
6. Because human eyes are sensitive.
7. ~1 mag deeper ~3x larger field (100°) (Ignoring caveats) One human is worth about six cameras.
8. And human eyes are everywhere.
9. Perseids 2013 visual data
10. Visible light observations of meteor rates are useful.
11. Landsat 5 got hit (probably) Perseids 2009 WTF?! WTF?! WTF?!
12. But not all showers are observed well.
13. Leonids 2012 20 Nov 2012, 6 UT: counted 33 Leonids in 1 hour fluke or not?
14. How many minor outbursts are being missed?
15. Possibly a lot. Draconids 2012 only visible here
16. Does it matter?
17. YES. Because outbursts constrain models.
18. OK. Now that we agree. How do we fix this?
19. Super Sirko to the rescue In 2011, MetRec started estimating fluxes.
20. MetRec estimates the Effective Collection Area (ECA) Area corrected for direction, extinction and limiting magnitude. (cf. Molau 2011) flux(mag < 6.5) = #meteors / ECA [km-2 h-1]
21. Draconids 2011 Made available in real-time at http://imonet.org (Koschack
22. Every clear minute, MetRec produces a flux record. { ‘time’: ‘2013-08-21 03:42’, ‘station’: ‘MINCAM1’, ‘shower’: ‘PER’, ‘eca’: 3.18, ‘met’: 3, ‘mag’: [2, -1, 3], ‘lm’: 4.2, ... }
23. meteorflux.io HTTP GET API API HTTP POST Flux
24. http://meteorflux.io
25. Perseids 2011-2013 (averaged)
26. Lyrids 2011-2013
27. Quadrantids 2012-2013
28. eta-Aquariids 2011-2013 WTF?!
29. Leonids 2011-2012 WTF?!
30. Orionids 2011-2012 (averaged) WTF?!
31. Northern Taurids 2011-2012 (averaged) WTF?! WTF?! Likely
32. Antihelion 2012 WTF?! WTF?!
33. Draconids 2012 No
34. Alexandr Maidik (Ukraine) 55 Draconids (16h00-18h00 UT) peak at ~16h50 Jakub Koukal (Czech Republic) 60 Draconids (17h00-19h10 UT) peak at ~17h05 Draconids 2012 visual observations
35. Visual observations are still awesome. ... let’s add them to the tool.
36. https://github.com/barentsen/meteor-flux Code is open under MIT license. Anyone wants to join?
37. Next steps: ... include mass index; ... understand systematics (moon, clouds); ... switch on real-time reporting in MetRec.
38. Thanks Poznyan.