Heliophysics Events Knowledgebase Coverage Registry (HCR)
Observation Details
Overview Where Groups: Mode, FOV, # spectra in map Data Links
2016-03-31 11:09:05-12:12:18
Coronal Loop Obs
Observation of Coronal Loop Footpoints
x,y:376",58"
Max FOV:314"x162"
Target:Active Region
Nearby Events
6302A Continuum Intensity314"x162"994 spectra
6302A Longitudinal Flux Density314"x162"994 spectra
6302A Transverse Flux Density314"x162"994 spectra
6302A Velocity 6301.5A314"x162"994 spectra

Level 1 Summary
Level 2 Summary
Level 1 Monthly
Level 2 Monthly
SP Cubes 17 MB
SOTSP: Coronal Loop Obs
2016-03-31T11:09:05 to 2016-03-31T12:12:18
Science Goal: Observation of Coronal Loop Footpoints
Program: Fast map, full FOV, Q65, 1-side CCD
Target: Active Region
xcen=376 ycen=58
Instrument: SOTSP
HOP/JOP: 206
Description: Dear COs, I have a suggestion for the next OP (Thursday). There are some AIA 171 loops extending from the sunspot to the *west* that are quite clean (see image). From the EIS point of view it would be interesting to get Doppler measurements at both footpoints of these loops. When we observe these loops rooted in sunspots we always see strong downflows into the sunspot, but an open question has been whether there are upflows at the other footpoint corresponding to a siphon flow. This would be a good opportunity to check. For EIS I would suggest running HPW021VEL360x512v1_b (ID: 523) to cover the entire loops. In this case the pointing would be (+12,+60) at 29-Mar-2016, 19:34 UT. The duration is 3hr 16min. If data volume is a problem, then an option is to do two pointings of HPW021VEL120x512v2_b (ID: 521). The pointings would be (+100,+49) followed by (-130,+47) [both times at 29-Mar-2016 19:34]. 50min are required at each pointing. For the latter option, it would be possible to get SOT data at the footpoints. For XRT I would suggest some combination of cool filters to try and see these loops. It would be preferable to observe the loops early in the OP in order to have the best viewing geometry. Thanks, Peter SP Main # 5, ID: 0x191 Fast map, full FOV, Q65, 1-side CCD

Dear COs, I have a suggestion for the next OP (Thursday). There are some AIA 171 loops extending from the sunspot to the *west* that are quite clean (see image). From the EIS point of view it would be interesting to get Doppler measurements at both footpoints of these loops. When we observe these loops rooted in sunspots we always see strong downflows into the sunspot, but an open question has been whether there are upflows at the other footpoint corresponding to a siphon flow. This would be a good opportunity to check. For EIS I would suggest running HPW021VEL360x512v1_b (ID: 523) to cover the entire loops. In this case the pointing would be (+12,+60) at 29-Mar-2016, 19:34 UT. The duration is 3hr 16min. If data volume is a problem, then an option is to do two pointings of HPW021VEL120x512v2_b (ID: 521). The pointings would be (+100,+49) followed by (-130,+47) [both times at 29-Mar-2016 19:34]. 50min are required at each pointing. For the latter option, it would be possible to get SOT data at the footpoints. For XRT I would suggest some combination of cool filters to try and see these loops. It would be preferable to observe the loops early in the OP in order to have the best viewing geometry. Thanks, Peter SP Main # 5, ID: 0x191 Fast map, full FOV, Q65, 1-side CCD

Annotations:
Hits: 92
Chief Observer
Cruz (RCO)--> Bamba (CO)
Related Links
Cites: Coronal Loop Obs     
Timeline: gif use
See also
Datasets
Get All Data
saaIntervals hiIntervals

wavelength: 6302A Continuum Intensity cadence: 0 min fov: 314,162 images: 994 JavaScript Landing Page
wavelength: 6302A Velocity 6301.5A cadence: 0 min fov: 314,162 images: 994 JavaScript Landing Page
wavelength: 6302A Transverse Flux Density cadence: 0 min fov: 314,162 images: 994 JavaScript Landing Page
wavelength: 6302A Longitudinal Flux Density cadence: 0 min fov: 314,162 images: 994 JavaScript Landing Page
Time Series (SP Datacubes)