This page (revision-17) was last changed on 18-Apr-2021 19:06 by JianSun

This page was created on 11-Jun-2009 23:40 by JianSun

Only authorized users are allowed to rename pages.

Only authorized users are allowed to delete pages.

Page revision history

Version Date Modified Size Author Changes ... Change note
17 18-Apr-2021 19:06 5 KB JianSun to previous
16 23-Jun-2009 16:40 5 KB JianSun to previous | to last
15 23-Jun-2009 16:09 4 KB JianSun to previous | to last
14 23-Jun-2009 16:07 4 KB JianSun to previous | to last
13 23-Jun-2009 16:03 4 KB JianSun to previous | to last
12 23-Jun-2009 16:00 4 KB JianSun to previous | to last
11 12-Jun-2009 16:31 4 KB JianSun to previous | to last
10 12-Jun-2009 14:40 3 KB JianSun to previous | to last
9 12-Jun-2009 14:35 3 KB JianSun to previous | to last
8 12-Jun-2009 13:12 1 KB JianSun to previous | to last
7 12-Jun-2009 12:35 1 KB JianSun to previous | to last
6 12-Jun-2009 12:01 1 KB JianSun to previous | to last
5 12-Jun-2009 11:59 1 KB JianSun to previous | to last
4 12-Jun-2009 11:17 1 KB JianSun to previous | to last
3 12-Jun-2009 10:08 686 bytes JianSun to previous | to last
2 12-Jun-2009 10:03 678 bytes JianSun to previous | to last
1 11-Jun-2009 23:40 568 bytes JianSun to last

Page References

Incoming links Outgoing links
Eis40June...nobody

Version management

Difference between version and

At line 1 changed 2 lines
[{ALLOW edit EISMainUsers}]
[{ALLOW view Anonymous}]
[{ALLOW view jsun,ms2,DaveWilliams,LouiseHarra}]
[{ALLOW edit jsun,ms2,DaveWilliams,LouiseHarra}]
At line 13 removed 3 lines
\\
\\
At line 20 changed one line
''40" slot, 15 scans, time duration: roughly 3 minutes''
''40" slot, 15 scans, time duration: roughly 6 minutes''
At line 24 removed 2 lines
\\
\\
At line 34 removed 2 lines
\\
At line 38 removed one line
\\
At line 32 added one line
At line 45 removed one line
\\
At line 50 removed 2 lines
\\
\\
At line 59 removed one line
\\
At line 50 added one line
At line 63 removed 3 lines
[click here to see EIS data list | https://vsolar.mssl.ucl.ac.uk/SolarB/ThumbsConn_js2.jsp?startdate=2008-01-07+00%3A52&enddate=2008-01-08+00%3A52&Instrument=Thumbnail&Instrument=Movie&Submit=Submit+entry]
At line 68 removed 2 lines
\\
At line 76 removed 2 lines
\\
At line 84 removed 2 lines
\\
At line 88 removed one line
\\
At line 90 removed 7 lines
''1" fitted velocity and the deconvolution velocity (side by side)''
[{Image src='images/eis40/eis1scan_vs_40scan_recon_vel_FOV.png'}]
\\
\\
At line 103 removed 2 lines
\\
At line 109 changed one line
\\
* Due to having only two projections (order_0 & 1 images), the deconvolution is not good enough to reveal small or changed-rapidly structures. But considering 1" scanning usually takes long time to finish (in this case, 80 minutes for a small FOV), it is also not good enough to observe fast-changing features. So it looks the slot deconvolution will be useful for, at leat, synoptic review(?)
At line 111 removed 4 lines
* Due to having only two projections (order_0 & 1 images), the deconvolution is not good enough to reveal small or changed-rapidly structures. But considering 1" scanning usually takes long time to finish (in this case, 80 minutes for a small FOV), it is also not good enough to observe fast-changing features. So it looks the slot deconvolution would be useful for, for example, synoptic velocity review(?)
\\
At line 119 changed one line
- Instrument response is different, eg, response fuctions & PSF
- Instrument response is different, eg, PSF
At line 121 changed one line
- Spectral resolution is different, eg, TRACE covers wider range for FeXII 195 line compared with EIS 195 line (according to drw)
- Spectral resolution is different, eg, TRACE covers wider for FeXII 195 line compared with EIS 195 line (according to drw)
At line 123 changed one line
- images from TRACE & EIS may have different distortions and alias, which makes alignment difficulties
- images from TRACE & EIS may have different distortions and alias, which makes alignment difficult
At line 127 removed 2 lines
\\
At line 131 changed one line
\\
*
At line 133 removed one line
* If shifts order-plus images a few pixels along X-axis prior to deconvolution procedure, the reconstructed velocity maps will have slightly differences compared with no X shifts result:
At line 135 removed 47 lines
''Full FOV deconvolution: X shifts are -3, -2, -1, 0, 1, 2, 3 pixels from left to right and top to bottom''
[{Image src='images/eis40/vel_iter_3pix.png'}]
\\
''Small FOV deconvolution: X shifts are -3, -2, -1, 0, 1, 2, 3 pixels from left to right and top to bottom''
[{Image src='images/eis40/vel_iter_3pix_FOV.png'}]
\\
EIS study 235 – PRY_slot_context for large slot context
__Details__:
40” slot, 14 scans, spectral window width: 48pix, Y-height: 512pixs\\
exposure time: 10s, duration: 3m6s, 15 lines\\
Data obtained on 07-Jan-2008, 5 fits files\\
TRACE 195A data is used as order-0 image: tri20080107.0600
__Details__:
FeXII 195A line, 1K by 1K size, 29 frames\\
processed by standard TRACE routines\\
[{Image src='images/eis40/eis_trace_flist.png'}]
\\
TRACE movie from tri200807107.0600 (Red color-table, log scale applied)
[click here | https://vsolar.mssl.ucl.ac.uk/eiswiki/images/eis40/trace20080107.0600.mov]
\\
EIS intensity and reconstructed velocity movie (Red color-table, log scale applied)\\
5 frames, time range: 07-Jan-2008 06:16 ~ 06:28
[click here | https://vsolar.mssl.ucl.ac.uk/eiswiki/images/eis40/eis_int_vel_v0_log.mov]
\\
----
For your information:
[Ignacio Ugarte-Urra: using 40" slot to do plasma diagnostics: electron density and DEM analysis|https://vsolar.mssl.ucl.ac.uk/eiswiki/Wiki.jsp?page=SlotDiagnostics]