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
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
29733 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
30962 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29984 No Plot No Plot No Plot No Plot acp No Plot No Plot No Plot S3hist pc
29731 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
29732 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
29735 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
29590 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
30176 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42340 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
30143 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28731 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
28540 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30967 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30048 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
28840 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
42337 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
42334 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot S3hist pc
28803 I2ahist I3ahist S2ahist No Plot acp No Plot No Plot No Plot No Plot pc
30966 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28518 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30969 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
42330 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
29846 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
28239 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30045 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30970 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
30175 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29736 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc

Last Updated: Jun-24-2025

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