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
28152 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
29710 No Plot I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30831 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30832 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28301 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30622 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30828 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30837 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30829 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30379 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30110 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
42599 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot S3hist pc
28146 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30154 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28598 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30631 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30833 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30834 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30835 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29761 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42583 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot S3hist pc
28559 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28198 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
30852 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
29593 No Plot No Plot No Plot No Plot acp No Plot No Plot No Plot No Plot pc
29592 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
29594 No Plot No Plot No Plot No Plot acp No Plot No Plot No Plot No Plot pc
29595 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
29597 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
29596 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
29314 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30840 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28126 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30844 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
42578 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
30632 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30282 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot No Plot pc
29917 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
28263 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42570 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot S3hist pc
42565 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
28281 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30044 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc

Last Updated: Mar-17-2025

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