ACIS

Public ACIS timed-exposure mode observations in FAINT, VFAINT, FAINT_BIAS, or GRADED exposure modes are included. For observations obtained in Alternating Exposure (Interleaved) mode, only the long exposures are included.

The following ACIS observations are excluded:

• Any other exposure modes;
• ACIS continuous-clocking mode observations.

HRC-I

Public HRC-I observations are included.

HRC-S

HRC-S observations are excluded.

Other Exclusions

• All grating observations are excluded.
• Moving target (solar system) observations are excluded.
• Observations obtained with defocus < -0.1 mm or > +0.2 mm are excluded.
• Observations obtained with sim_z_offset < -20.0 mm or > +20.0 mm are excluded.
• The following observations that otherwise meet all of the other criteria are excluded: ObsIDs 984, 985, 1996, 2000, and 2594.
• In a small number of cases, "exclusion regions" are created that reject all candidate detections from specific regions of a stacked observation field-of-view. These regions typically surround areas that include ACIS exclude windows in the individual observations comprising the stack (so that no meaningful detections will be present in these regions). In such cases, there will be no detection sensitivity for the stacked observation within the exclusion region. The following stacked observations include one or more exclusions regions: acisfJ0534316p220052_001, acisfJ0534322p215837_001, acisfJ0955234p690445_001, and acisfJ2144487p382120_001.