XRT Stray Light Study 2015 -- Phase 1 (before 14-Jun-2015).

Link to the 2014 summary page.
Link to the 2015 phase 2 summary.
Link to the 2016 summary.

(10 May, 2015 by Aki Takeda)
(2 June, 2015 revised.)
(28 September, 2015 added synthsizing Ti-poly sl-image.)

1. Purposes of the project 2015.

2. Summary of Results.

3. Measurements 2015 at a glance.

ID No. date & time (UT) XOB purposes (link: obtained plots & images) memo
Test 6-May-2015, 18:25:30 1A7A light curve of non-hard-eclipse, cadence check, with Alpl, Cpl, tnBe. delay from simulation < 10s.
1 7-May-2015, 17:23:00 1A7C light curve, Al-poly (1s), Thick-Al (32s) at Disk Center
2 7-May-2015, 22:18:30 1A7E light curve, Ti-poly (2s), C-poly (2s) at DC
3 8-May-2015, 17:59:00 1A7D light curve, Thin-Be (5.6s), Med-Be (32s) at DC mdBe to be 22.6s next time.
4 9-May-2015, 18:35:00 1A7F light curve, Al-mesh (1s), Med-Al (22.6s) at DC mdAl to be 32s next time.
5 10-May-2015, 17:32:00 1A80 light curve, Ti-poly (2s), C-poly (2s) at DC
6 11-May-2015, 18:08:00 1A81 light curve, Thick-Be (64s) at DC
7 12-May-2015, 12:10:30 1A83 light curve, Ti-poly (4s), C-poly (4s) on S-pole (HOP 81)
8 13-May-2015, 17:41:30 1A82 light curve, Ti-poly (2s), C-poly (2s) on W-limb at (945,0) images are noisy.
9 13-May-2015, 22:36:30 1A82 light curve, Ti-poly (2s), C-poly (2s) on E-limb at (-945,0) noisy Tipl, telem-drop in Cpl.
10 14-May-2015, 16:39:00 1A84 light curve, Ti-poly (4s), C-poly (4s) on N-pole (HOP 81) telemetry drop in Ti-poly.
11 18-May-2015, 17:23:30 1A85 light curve, Ti-poly (2s), C-poly (2s) at DC (right after CCD bakeout).

4. Stray light images 2015, at a glance.

Ti-poly, 20150507 DC Ti-poly, 20150510 DC Ti-poly, 20150518 DC
Ti-poly, 20150512 SP Ti-poly, 20150513 WL Ti-poly, 20150513 EL Ti-poly, 20150514 NP

C-poly, 20150507 DC C-poly, 20150510 DC C-poly, 20150518 DC
C-poly, 20150512 SP C-poly, 20150513 WL C-poly, 20150513 EL C-poly, 20150514 NP

Al-poly, 20150507 DC Thick-Al, 20150507 DC Thin-Be, 20150508 DC Med-Be, 20150508 DC
Al-mesh, 20150509 DC Med-Al, 20150509 DC Thick-Be, 20150511 DC

5. Comparison of the Stray-light images.

5.1 Ti-poly (at DC pointing)

Movie of PREPed & normalized stray light images.

Image 1 :  7-May-2015 22:24:54 (15 days after the previous CCD bakeout)
Image 2 : 10-May-2015 17:38:24 (18 days after the previous CCD bakeout)
Image 3 : 18-May-2015 17:28:45 (0  day after the previous CCD bakeout)
Image 4 : 15-May-2014 18:25:03 (0  day after the previous CCD bakeout)

5.2 C-poly (at DC pointing)

Movie of PREPed & normalized stray light images.

Image 1 :  7-May-2015 22:26:12 (15 days after the previous CCD bakeout)
Image 2 : 10-May-2015 17:38:55 (18 days after the previous CCD bakeout)
Image 3 : 18-May-2015 17:28:56 (0  day after the previous CCD bakeout)
Image 4 : 27-May-2014 20:46:01 (12 days after the previous CCD bakeout)

6. Light curves 2015, collection.

Test1 (Alpl & tkAl) 2 (Tipl & Cpl)3 (tnBe & mdBe)
4 (Alms & mdAl) 5 (Tipl & Cpl) 6 (tkBe) 7 (S-pole)
8 (W-limb)9 (E-limb) 10 (N-pole)11 (after Bakeout)
12 (Alms & Tpol) 13 (Apol & tnBe) 14 (Tpol & Cpol) 15 (after Bakeout)
data lost
(2015/06/30)
16 (Alms & Tpol, WL) 17 (Alms & Tpol, SP) 18 (Tpol & Cpol, NP) 19 (Tpol & Cpol, EL)
20 (Alms & Tpol) 21 (Alms & Tpol) 22 (C-poly) 23 (C-poly)

[ memo ]