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
30974 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
29622 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
28845 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
28688 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
42308 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
30986 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
30983 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30979 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30981 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
28173 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot S3hist pc
28726 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
28693 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30978 No Plot No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42301 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
28857 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
29615 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30984 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
29616 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
29617 I2ahist I3ahist S2ahist No Plot acp No Plot No Plot No Plot No Plot pc
30982 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
28128 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
42288 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
28852 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
28065 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30993 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
29669 No Plot I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42287 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot S3hist pc
42284 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist S3hist pc
30988 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30992 No Plot No Plot No Plot No Plot acp I2hist I3hist No Plot S3hist pc
30997 I2ahist I3ahist No Plot No Plot acp No Plot No Plot No Plot No Plot pc
30280 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist No Plot pc
30995 No Plot No Plot No Plot No Plot acp I2hist I3hist S2hist No Plot pc
29787 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
29621 I2ahist No Plot S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
30562 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc
42283 No Plot No Plot No Plot No Plot acp No Plot No Plot S2hist S3hist pc
30996 I2ahist I3ahist S2ahist S3ahist acp No Plot No Plot No Plot No Plot pc

Last Updated: Jul-13-2025

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