1. Studying the appropriate size of BP

2. Studying time variation of BP and QS area

Processed by idlpro/xrt/reu2026/ 
gtinfo_qsbp_xrt_qs2_20190718.pro
sig_qsbp_xrt_qs2_drot.pro
sig2teem_qsbp_qs2_drot.pro
teem2lumin_qsbp_qs2_drot.pro
calc_hmi_mag_unsig_qs2_drot.pro
plot_tvar_maglum_20190718.pro
Use (cx,cy,rad) of BP and QS at the reference time (2019/07/18 2UT),
rotate(drot) the coordinates (cx, cy) to the time of previous/next images, then
read out the sigals of the areas centered at the rotated (cx, cy) having the same radius.
2019/07/17 2:03:45 UT (T=-24h) 2019/07/18 2:03:45 UT (T=0) 2019/07/18 3:58:47 UT (T=+2h) 2019/07/18 5:32:56 UT (T=+3.5h)

XRT images movie
HMI images movie

3. Solar Min. BP and QS regions images selected for analysis

Processed by idlpro/xrt/reu2026/ 
gtinfo_qsbp_xrt_qs2_yyyymmdd.pro
sig_qsbp_xrt_qs2.pro
sig2teem_qsbp_qs2.pro
teem2lumin_qsbp_qs2.pro
calc_hmi_mag_unsig_qs2.pro
plot_usmag_xlumin_qs2_all.pro
2018/07/09     unsig. Mag images 2019/01/17     unsig. Mag images 2019/02/28     unsig. Mag images 2019/03/25     unsig. Mag images
2019/04/24     unsig. Mag images 2019/05/19     unsig. Mag images 2019/06/22     unsig. Mag images 2019/07/18     unsig. Mag images
2019/08/12     unsig. Mag images 2019/09/09     unsig. Mag images 2019/10/22     unsig. Mag images 2019/11/08     unsig. Mag images
2019/12/19     unsig. Mag images 2020/05/13     unsig. Mag images 2021/02/07     unsig. Mag images