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
29587 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28250 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29809 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28812 I2ahist I3ahist S2ahist No Plot acp No Plot No Plot No Plot No Plot pc
42382 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
29791 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30944 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
28851 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30138 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
28853 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30951 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
29637 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42374 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42375 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist 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

Last Updated: Jun-10-2025

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