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
29637 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42373 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30947 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30114 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28192 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
28517 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
28707 I2ahist I3ahist S2ahist No Plot acp No Plot No Plot No Plot No Plot pc
28849 I2ahist I3ahist S2ahist No Plot acp No Plot No Plot No Plot No Plot pc
30954 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30958 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28669 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29613 I2ahist I3ahist S2ahist No Plot acp No Plot No Plot No Plot No Plot pc
28008 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
29444 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28684 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29785 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
42362 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
29907 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30957 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30959 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29941 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30955 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
29734 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
28538 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28100 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28798 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
28535 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30173 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30963 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc

Last Updated: Jun-14-2025

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