23 May 2011, Monday ======================= TUNIS Sequence 1: 1-hour 6563 target: quiet Sun disk center exposure time: 50 ms start: 7:02 UTC (8:02 LCT) duration 1 hour Compensation of solar rotation safely ON. Seeing very changable. Conditions so bad that VTT still closed at 8:45 LCT. Dangerous ciruses at the height. It is almost impossible to say/detect when a cirus could pass in front of the Sun. Take this into account at the analysis. Probably at about 8:50 - 8:55 a clump of ciruses passed accross the Sun just before the end of sequnce. It probably spoiled this sequence. Probably end of sequence can be cut and thrown away. How to guess whether and when a cirus passed: Average each TUNIS particular spectroimage. See time variations of the average - drops should correspond to a pass of cirus. GB context sequence start: 7:41 UTC (8:41 LCT) end: 7:41:50 UTC (8:41:50 LCT) exp time: 4 ms No of shots: 200 time step between shots: 100 ms VDF_2011-05-23_08h41_41.fts TUNIS Sequence 2: 1-hour 6563 target: NOAA 11216 with only one almost symetric sunspot start: 9:58 UTC (10:58 LCT) exposure time 50 ms duration 1 hour Compensation of solar rotation safely ON. Seeing much changable but this observation seemed not to be interfered with ciruses. long, lat (THEMIS control display) 196.18 deg, -15.59 deg CIRUSES at the SUN from about 11:40 to 11:46 LCT !!! Sequnce is spoiled. !!! GB context sequence start: 10:17 UTC end: 10:18:07 UTC exp time: 4 ms No Shots 200 time step 100 ms Afternoon: CLOUDY. NO OBSERVATIONS POSSIBLE ANYMORE. 21 May 2011, Saturday ======================= Sequnce 1 TUNIS 4554 target: quiet Sun disk center exposure time 50 ms start: 7:26 UTC (8:26 LCT) duration 1 hour Compensation of solar rotation safely ON. GB context burst: start: 7:34 UTC end: 7:37 UTC exp time: 8 ms No shots: 1000 time step between shots: 200 ms Sequence 2 TUNIS 4554 target: NOAA 11216 (Sunspot with a small tail - future splitting ? ) exposure time 50 ms start: 8:57 UTC (9:57 LCT) duration 1 hour Compensation of solar rotation safely ON. Telscope display coordinates: long, lat 195.69 deg, -15.73 deg from SolarMonitor: S16E16 from FITS header: LATITUD = -15.7244 LONGITUD = 195.683701 GB context burst: start: 9:25 UTC end: 9:30 UTC (10:29:44 LCT) exp time: 4 ms No shots: 500 time step between shots: 500 ms Sequence 3 TUNIS 6497 target: quiet Sun DC exposure time 50 ms start: 10:31 UTC (11:31 UTC) duration: 1 hour Sequence 4 TUNIS 6497 target: NOAA 11216 (Sunspot with a small tail - future splitting ? ) exposure time 50 ms start: 12:01 UTC (13:01 LCT) duration: 1 hour Telscope display coordinates: long, lat 196.11 deg, -13.82 deg from SolarMonitor: S16E13 (-205",-231") GB context burst: start: 12:16 UTC end: 12:16:47 LCT exp time: 4 ms No shots: 200 time step between shots: 100 ms FoV 120" x 80" Afternoon: exceptionally BAD seeing Izana bathes in warm and humid (40 %) air. NO WIND. OBSERVATIONAL DISASTER. Sparsed clouds in height. Latter totally clouded. No observations in the whole afternoon. 20 May 2011, Friday =================== TUNIS SEQUNCE 1 6563, quiet sun disk center, exp time = 50 ms start: 7:30 UTC (8:30 LCT) end: 8:30 UTC (8:30 LCT) TUNIS SEQUNCE 2 6497, quiet sun disk center, exp time = 50 ms start: 8:50 UTC (9:50 LCT) end: 9:50 UTC (10:30 LCT) TUNIS SEQUNCE 3 4554, quiet sun disk center, exp time = 50 ms start: 10:27 UTC (11:27 LCT) end: 11:27 UTC (12:27 LCT) MTR SEQUENCE 4 3-hour oscillation sequence target: very quiet disk center start: 12:55 UTC (13:55 LCT) end: Cameras: 4554 exp t 300 ms, accum 10 (i.e. sum 10 images) 63012 exp t 50 ms, accum 20 6497 exp t 60 ms, accum 20 time step: 10 s Orientation Prefente 1 - Nord Solaire Slit oriented in solar N-S direction. At about 15:40 LCT spikes from predisperser were noticed in 63012. They may entered there much sooner. They were removed soon after. They don't spoil lines. Touristic weather = almost no wind, cloudless, hot = horrible seeing MTR SEQUENCE 5 1-HOUR sunspot oscillation sequence The same camera configuration as in SEQ 4 target: NOAA 11216 - almost circular well-developed sunspot start: 16:24 UTC (17:24 LCT) Slit crosses the sunspot at its largest diameter in solar N-S direction. At about 16:35 UTC Claude played with tip tilt - jump of sunspot. Spectra can be correlated by vertical strips at continuum to remove this jump. NOAA 11216 coordinates from SolarMonitor: S14E15 (-239",-198") from FITS header: LATITUD = -15.2169 LONGITUD= 194.550293 GB CONTEXT BURST (horrible seeing) NoShots = 100 Time step = 100 ms Exp time = 8 ms start: 16:29 UTC filename: VDF_2011-05-20_17h29_40.fts MTR SEQUENCE 6 Stopped (target coordinates not entered into the script) MTR SEQUENCE 7 1-HOUR Evershed flow sequence The same camera configuration as in SEQ 4 target: NOAA 11214 - a sunspot near the West limb in decaying AR start: 17:50 UTC Slit crosses the sunspot in RADIAL direction. Orientation Prefente 6 - Radiale Changed also in both the main and flatfield script. Don't forget to return it back to 1 - Nord Solaire NOAA 11214 coordinates from SolarMonitor: S24W68 (804",-374") from FITS header: LATITUD = -24.5896 LONGITUD= 279.581604 GB CONTEXT BURST (horrible seeing) NoShots = 100 Time step = 100 ms Exp time = 8 ms start: 17:52 UTC filename: VDF_2011-05-20_18h52_24.fts GB CONTEXT BURST (horrible seeing) NoShots = 100 Time step = 100 ms Exp time = 8 ms start: 18:33 UTC (19:33 LCT) filename: VDF_2011-05-20_19h34_22.fts 19 May 2011, Thursday ====================== MTR SEQUENCE 1 - calibration sequence with hairs - not a real observations, just if needed in latter reduction start: 9:00, 50 spectra taken (no FF, no DC) at the end two hairs removed from the slit MTR SEQUENCES 2+3 2-hour oscillation sequence (in fact one sequence saved as seq2/) start: 9:20 LCT (8:20 UTC) end: 11:20 LCT Telescope stopped after taking data. Manual start of taking of FF and DC was needed. That's why raw data t002*.fts FF and DC as t003*.fts Conclusion: good for analysis Just two almost circular sunspots at the disk. No well-structured ARs or pores visible for latter co-alignment with SDO. That's why TUNIS sequences taken in the quiet Sun disk center. Purpose/objective: to compare oscillations as seen in MTR and TUNIS interesting thing: Halpha oscillations TUNIS SEQUENCE 4 4554, disk center, exp time = 100 ms duration: approx 1 hour (i.e. 140 hadamard loops) start: 14:36 UTC (i.e. 15:36 LCT) end: 15:36 UTC Compensation of solar rotation safely ON. TUNIS SEQUENCE 5 6497, disk center, exp time = 100 ms duration: approx 1 hour start: 16:05 UTC (i.e. 15:36 LCT) end: Compensation of solar rotation safely ON. Note: H2O molecular lines almost invisible making identification a bit difficult TUNIS SEQUENCE 6 6563, disk center, exp time = 100 ms start: 17:32 UTC (18:32 LCT) duration: approx 1 hour At the moment of flatfielding an error of dome tracking occurred. Error dome was less than 6 degrees, i.e. error between Solar ephemeris and dome position. Not all FF frames were taken through a clear aperture but through slightly shadowed by dome It means that in FF frames may be seen a trend of decreasing light due to shadowing of the telescope by the dome. Take for flatfielding just FF frames let's say from first ten hadamard loops or FF from a previous sequence (in the worst case). 18 May 2011, Wednesday ====================== MTR: MULTILINE MTR OSCILLATION SEQUENCE NOT GOOD. CAN BE AFTER SOME TIME (ANALYSIS OF OTHER SEQUENCES) SAFELY DELETED. start: 10:24 LCT (Local Canarian Summer Time = UTC + 1 ) end: one hour latter time step: 10 s Exposure times: 4554 300 ms (Ixon3) 6301/2 50 ms (Ixon5) 6497 60 ms (Ixon6) All Ixon cameras start to expose at the same moment but without any latter synchronization. target: QS at disk center Not 100% sure whether compensation of solar rotation was ON. Most probably YES, but it needs a check in telescope log. TUNIS: 6497 SEQUENCE start: about 11:46 LCT (not exactly) target: NOAA 11214 (at the west limb) 70 hadamard loops what is approx 30 min than 40 had loops of FF at DC width of scanned area: 14 arcsec height of scanned area: about 80 arcsec end about: 12:19 GB: CONTEXT BURST start at about 11:49 burst finished at 12:05 No of shots: 1000 delay (time step between shots): 1 s exposure time: 6 ms 17 May 2011, Tuesday ==================== GB: FLAT4ms.fts FLAT6ms.fts VDF_2011-05-17_09h35_46.fts Just a demonstration burst to show a seeing at that time. No of shots: 1000 delay (time step between shots): 200 ms exposure time: 4 ms approx burst duration: (4 + 200)*1000 = 204 s = 3.4 min Start at about: 9:35 End at: 9:38:07 Pri flatfieldovani vyskusat oba 4ms aj 6ms FF. Burst je z oblasti poru/skvrny, na ktorom je prave kaz, ktory nejde dobre odfletfieldovat.