Advanced Stokes Polarimeter Data
April/May 2001 Observing Run
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  • Jump to [01.05.01]

  • Observing log/notes for ASP/TRACE coordination, 01.04.27--01.05.07

  • General ASP mode: FeI 630.15, 630.25nm lines, 0.6"slit width, 0.375" sampling along slit.  AO is on when possible (in either full-correction or tip-tilt mode).  Slit length is about 80", and a 200-step scan takes just under 20 minutes.  Halpha and Ca-K slit-jaw images acquired at each slit step. (Quick-look images will be available in a few weeks or so.)

  • 27 April  (see ASP log here)  :  One scan of the trailing portion of  AR9433 (N20  W25), one flat-field. That was it (rest of the day was spent setting up.

  • 28 April   (see ASP log here) :  TRACE is still watching AR9433 (W40 or so now), so I did too (trailing portion).  Seeing and cirrus were both variable, tried to not pause observations but rather kept going through the clouds to keep the cadence nominal.  So data quality will be marginal at best.   Did manage good cal, ffield files; also have a before/after the small C2 event at 16:00UT.

  • 29 April  (see ASP log here) : TRACE is still watching AR9433 (W55), tried to watch it too, but had weather problems.  A few nice scans of the trailing region, but in and out of cirrus, clouds, rain, etc. etc.  Hoping that TRACE will decide to look at AR9441 tomorrow???  AR9433 will be too far west for any useful analysis.

  • 30 April  (see ASP log here) : TRACE was still on AR9433.  I did one scan of this region at W60, then went to AR9441.  The seeing was good only in the morning, but since this region had  a sunspot  close to disk center, and we had CLEAR SKIES ALL DAY!!!, I used it to obtain data for a telescope calibration matrix.  Numerous scans of the leading 9441 sunspot and instrument calibrations.  The data will be of only limited scientific use (except the early-am data, which looked good), but will provide a good set of data for calibrating  all of the other wonderful data I get!  :-)

  • 01 May:  (see ASP log here) : TRACE and ASP both on AR9441, seeing was excellent in the morning so we were able to get nice full-AR scans every 1-2 hr and high-cadence (8-12 min) scans of the emerging flux region to the N/E of the primary leading sunspot.  Good observations from 13:30UT until about 17:00 UT, then obtained good calibration files.

  • 02 May  (see ASP log here) : TRACE and ASP both on AR9441. Weather gave us thick cirrus in the a.m., which cleared for just an hour or so. Got one good scan of the entire AR, then only a few of the following pores with higher cadence before clouds and seeing got bad.

  • 03 May  (see ASP log here) : TRACE and ASP both on AR9441, seeing and weather were variable, two large scans of the full AR only. I am no longer physically at the observatory and relying on the observers there to run things, directing the action remotely.

  • 04 May  (see ASP log here) : No Observations recorded for this day. Both early morning and late afternoon were clouded out. We had some clearing in the late morning and noon time hours. Poor seeing was the going thing for this time frame.

  • 05 May  (see ASP log here) : Looks like some good high-cadence scans of AR9445 (where TRACE was looking at the direction of the MaxMillenium campaigns) in the early morning, then a full-AR scan, a few more high-cadence scans. Seeing became variable around 15:00UT, clouds around 17:00. But add'l scans after that as well.

  • 06 May  (see ASP log here) : Full AR9445 scans and a few high-cadence scans, 14:00UT - 16:30UT

  • 07 May  (see ASP log here) : AR scans of 9445 13:50--14:30, then high-cadence scans 16:15 UT. Region was apparently quite active.

    Not a bad run... thanks to Joe and Doug and Steve for the support at the telescope!