MTA ACIS Corner Pixels

The links below show plots of average corner pixel centroid slope and mean for ACIS observations. Separate plots are shown for FAINT MODE (3X3) and VFAINT MODE (5X5) observations.

Metric is the centroid of a gaussian fit to the histogram of corner pixel PHA values of detected events.

Corner pixels are defined as:

FAINT VFAINT AFAINT
(3X3) event island  (5X5) event island (5X5) event island
(1,1)-----(1,3)
-----* -----
(3,1)-----(3,3)
  
(1,1)(1,2)(1,3)(1,4)(1,5)
(2,1)(2,2)-----(2,4)(2,5)
(3,1)-----* -----(3,5)
(4,1)(4,2)-----(4,4)(4,5)
(5,1)(5,2)(5,3)(5,4)(5,5)
  
-------------------------
-----(2,2)-----(2,4)-----
----------* ----------
-----(4,2)-----(4,4)-----
-------------------------

  ALL FAINT MODE VFAINT MODE AFAINT MODE Data
CCD 2 Faint
VFaint AFaint
CCD 3 Faint
VFaint AFaint
CCD 6 Faint
VFaint AFaint
CCD 7 Faint
VFaint AFaint

MTA ACIS Corner Pixels: Recent Observatons

Click to see a plot. Note that not all plots are created for the given obsid.

Obsid I2ahist I3ahist S2ahist S2ahist acp I2hist I3hist S2hist S3hist cp
29975 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
30906 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28302 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42456 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
30149 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29763 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29105 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
28251 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30565 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30113 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30145 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28241 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42446 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
42450 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot S3hist pc
28107 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30276 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
30031 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30914 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42444 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
30730 I2ahist No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30144 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29769 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29641 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29768 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30160 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28850 I2ahist I3ahist S2ahist No Plot acp No Plot No Plot No Plot No Plot pc
30786 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28524 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28149 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30920 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42429 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
30197 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc

Last Updated: May-09-2025

If you have any questions about this page, please contact: swolk@cfa.harvard.edu