ASK Data Overview Workshop Stockholm June 2006 Hanna Dahlgren, KTH

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

ASK Cameras Location: 78.15, Look direction: azimuth 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

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

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

20 min mean images

Visibility plots ASK1 ASK2 ASK3

Overview December ASK 1 ASK 2 ASK #4#5 #6 #7 #8#9#10#11

Overview January ASK 1 ASK 2 ASK #1 #2 #3 #12 #13 #14

Overview January ASK 1 ASK 2 ASK #15#16 #17 #19 #20#18 #17

Overview January ASK 1 ASK 2 ASK #21 #22 #23

Overview February ASK 1 ASK 2 ASK #26 #25 #28 #27 #24

Overview February ASK 1 ASK 2 ASK #30 #29

Overview March ASK 1 ASK 2 ASK #31

Overview March ASK 1 ASK 2 ASK 3 #32

List of Evening Events (16:00 – 00:00) EventDateTime 12 Jan :00 – 17:30 22 Jan :00 – 21:20 34 Jan :20 – 20:30 44 Dec :20 – 22: Dec :45 – 20: Dec :00 – 22: Dec :30 – 20: Dec :00 – 17: Jan :00 – 18: Jan :30 – 23: Jan :30 – 19: Jan :15 – 22: Jan :00 – 20: Feb :45 – 21: Feb :30 – 20: Feb :00 – 20: Feb :45 – 18: March :15 – 19: March :00 – 21:30 Total: 19

List of Night Events (00:00 – 05:00) EventDateTime 55 Dec :00 – 03:00 68 Dec :45 – 03: Jan :45 – 05: Feb :00 – 01: Feb :00 – 01: Feb :30 – 05:45 Total: 6

List of Morning Events (05:00 – 10:00) Total: 2 EventDateTime 1417 Jan :00 – 07: Jan :30 – 07:15

List of Daytime Events (10:00 – 16:00) EventDateTime 79 Dec :45 – 11: Jan :45 – 11: Jan :15 – 12: Jan :00 – 10: Jan :45 – 15:00 Total: 5

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

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

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

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