1. ASK Data Overview Workshop Stockholm June 2006 Hanna Dahlgren, KTH

2. Contents Methods –Keograms –20-min mean images –Visibility plots Overview –December 2005 – March 2006 Special Events

3. ASK Cameras Location: 78.15, 16.03 Look direction: azimuth 181.2 east of north, elevation 81.6 FOV: 6.3 x 6.3 degrees 4 or 5 images/s ASK 1: 5720 Å – O 2 + E-layer (high energy e - ) ASK 2: 7320 Å – O + [OII] F-layer (low energy e - ) ASK 3: 7774 Å – O E- and F-layer

4. Keograms ASK produces large number of data → first overview with keograms

5. Keograms 20-min interval } Darks Stars Clouds ASK1 ASK2 ASK3 Aurora?

6. 20 min mean images

7. Visibility plots ASK1 ASK2 ASK3

8. Overview December 2005 456 7 12 89 1011 ASK 1 ASK 2 ASK 3 061218061218 12 06 #4#5 #6 #7 #8#9#10#11

9. Overview January 2006 234 5 18 678 17 ASK 1 ASK 2 ASK 3 061218061218 12 06 16 #1 #2 #3 #12 #13 #14

10. Overview January 2006 192021 22 27 2324 26 ASK 1 ASK 2 ASK 3 061218061218 12 06 25 #15#16 #17 #19 #20#18 #17

11. Overview January 2006 282930 ASK 1 ASK 2 ASK 3 061218061218 1206 #21 #22 #23

12. Overview February 2006 8910 11 16 1213 15 ASK 1 ASK 2 ASK 3 061218061218 12 06 14 #26 #25 #28 #27 #24

13. Overview February 2006 171819 20 25 2122 24 ASK 1 ASK 2 ASK 3 061218061218 12 06 23 #30 #29

14. Overview March 2006 123 4 9 56 78 ASK 1 ASK 2 ASK 3 06 1206 12 18 #31

15. Overview March 2006 101112 ASK 1 ASK 2 ASK 3 #32

16. List of Evening Events (16:00 – 00:00) EventDateTime 12 Jan 200616:00 – 17:30 22 Jan 200621:00 – 21:20 34 Jan 200619:20 – 20:30 44 Dec 200521:20 – 22:00 810 Dec 200518:45 – 20:15 910 Dec 200521:00 – 22:15 1011 Dec 200518:30 – 20:15 1111 Dec 200516:00 – 17:00 1216 Jan 200618:00 – 18:30 1316 Jan 200622:30 – 23:00 1926 Jan 200617:30 – 19:15 2026 Jan 200621:15 – 22:00 2129 Jan 200620:00 – 20:30 2615 Feb 200620:45 – 21:30 2816 Feb 200619:30 – 20:15 2919 Feb 200620:00 – 20:30 3021 Feb 200617:45 – 18:15 316 March 200619:15 – 19:45 3210 March 200620:00 – 21:30 Total: 19

17. List of Night Events (00:00 – 05:00) EventDateTime 55 Dec 200502:00 – 03:00 68 Dec 200502:45 – 03:45 2230 Jan 200603:45 – 05:30 2413 Feb 200600:00 – 01:30 2514 Feb 200600:00 – 01:00 2716 Feb 200604:30 – 05:45 Total: 6

18. List of Morning Events (05:00 – 10:00) Total: 2 EventDateTime 1417 Jan 200607:00 – 07:40 2330 Jan 200606:30 – 07:15

19. List of Daytime Events (10:00 – 16:00) EventDateTime 79 Dec 200510:45 – 11:45 1519 Jan 200610:45 – 11:00 1619 Jan 200612:15 – 12:45 1723 Jan 200608:00 – 10:45 1826 Jan 200613:45 – 15:00 Total: 5

20. Summary: Some problems with the cameras, overheating. ASK1 only until 8 January. A few days in March with just ASK3. About 30 events of interest More about 4 of them tomorrow

22. Special Events Event 1: 2 January 2006, 16:15 – 17:15

23. ASK 1ASK 2ASK 3 Event 1: 2 January 2006, 16:15 – 17:15 16:37:08 16:37:40

24. Event 1: 2 January 2006, 16:15 – 17:15