Author: Michael Wise

###### MIT CXC Documents

CONTENTS:

ACIS

acis_build_chip_gti spec
acis_build_mask spec
acis_detect_hotpix spec
acis_make_bkgd spec
acis_process_events: bad-pixel spec
acisreadcorr spec
Afterglow detection efficiency
Afterglow and hot-pixel spec
ARD ICD
Bad-pixel spec
Bias keywords
Bias-parity errors spec
Bias repair and replacement spec
CC bias summary
Check VFAINT background
Computation of FLTGRADE, GRADE, and PHA
Computation of ONTIME, DTCOR, and EXPOSURE
Computation of QUERY_VAL
Computation of X, Y, and TIMEs of Arrival of CC-Mode Events
CTI spec
DELTOCLK spec
FLTGRADE caveat
Hot-pixel spec
Level 0 ICD
Level 1 ICD
Mean biases
Notes about the ACIS instrument geometry data
Pipeline Processing Caveats
Pipeline Processing Tools
STATUS bits in bad pixel files
STATUS bits in event files
Sub-pixel spec
Time-Dependent Gain ARD
Time-Dependent Gain spec
ACIS-S detector geometry

HETG and LETG

- HRC-S/LETG "tgain" correction (SPI computation)

- LETG + ACIS-S Rotation Issue
- Finding Zeroth Order Position

PSF and LSF

- Data Randomization Required enhancement in header keywords
- LSFPARM for HETG+ACIS-S validated for unrandomized datasets
- LSFPARM for LETG+HRC-S validated for unrandomized datasets
- LSFPARM for LETG+ACIS-S validated for unrandomized datasets
- Updated LSFPARM for MEG+ACIS-S for unrandomized datasets

ARD
ISIS
Exposure Map
Miscellaneous

- CIAO 3 architecture White Paper and SDS presentation.
- Introduction to S-Lang (CXC S-Lang Class, Jan 2003)
- S-Lang use in data analysis (CXC S-Lang class, Jan 2003).

###### Subject: ACIS

| 11/08/04 | acis_build_chip_gti spec This document describes a specification for the ACIS tool acis_build_chip_gti. Download PDF, PS (102 K) or LaTeX source (8 K) of DRAFT Rev. 1.1 (11/08/04)

| 04/04/07 | acis_build_mask spec This document describes a specification for the ACIS tool acis_build_mask. Download PDF, PS (108 K) or LaTeX source (24 K) of Rev. 4.0 (04/04/07) Download PDF, PS (104 K) or LaTeX source (20 K) of Rev. 3.10 (08/11/04) Download PDF, PS (103 K) or LaTeX source (19 K) of Rev. 3.9 (04/26/04) Download PDF, PS (66 K) or LaTeX source (19 K) of Rev. 3.8 (11/21/03) Download PDF, PS (66 K) or LaTeX source (18 K) of Rev. 3.7 (10/22/03) Download PDF, PS (62 K) or LaTeX source (16 K) of Rev. 3.6 (10/21/03) Download PDF, PS (62 K) or LaTeX source (16 K) of Rev. 3.5 (10/20/03) Download PDF, PS (60 K) or LaTeX source (14 K) of Rev. 3.3 (09/25/03) Download PDF, PS (60 K) or LaTeX source (14 K) of Rev. 3.2 (12/04/02)

| 02/11/11 | acis_detect_hotpix spec This document describes a specification for the ACIS tool acis_detect_hotpix. This spec is superseded by the newer afterglow and hot-pixel detection spec. Download PDF, PS (115 K) or LaTeX source (23 K) of Rev. 1.11 (06/16/06) Download PDF, PS (107 K) or LaTeX source (23 K) of Rev. 1.10 (05/10/06) Download PDF, PS (112 K) or LaTeX source (22 K) of Rev. 1.9 (10/15/04) Download PDF, PS (112 K) or LaTeX source (22 K) of Rev. 1.8 (06/30/04) Download PDF, PS (111 K) or LaTeX source (22 K) of Rev. 1.7 (06/14/04) Download PDF, PS (73 K) or LaTeX source (22 K) of Rev. 1.6 (03/29/04) Download PDF, PS (70 K) or LaTeX source (21 K) of Rev. 1.5 (02/11/04) Download PDF, PS (70 K) or LaTeX source (21 K) of Rev. 1.4 (01/05/04) Download PDF, PS (70 K) or LaTeX source (21 K) of Rev. 1.3 (03/17/03)

| 03/01/11 | Afterglow detection efficiency This document describes the afterglow detection efficiency of acis_run_hotpix. Download PDF (224 K), PS (136 K) or LaTeX source (20 K) of Rev. 1.2 (03/01/11) Download PDF (224 K), PS (136 K) or LaTeX source (20 K) of Rev. 1.1 (10/07/10)

| 4/11/12 | Afterglow and hot-pixel spec This document describes a specification for algorithms to find afterglows and hot pixels on ACIS CCDs. This spec supersedes the previous acis_detect_hotpix and hot-pixel detection specs. Download PDF (152 K), B/W PDF (152 K), PS (312 K) or LaTeX source (30 K) of Rev. 2.10 (4/11/12) Download PDF (152 K), B/W PDF (152 K), PS (312 K) or LaTeX source (29 K) of Rev. 2.9 (3/2/12) Download PDF (152 K), B/W PDF (152 K), PS (176 K) or LaTeX source (28 K) of Rev. 2.8 (12/9/11) Download PDF (152 K), B/W PDF (152 K), PS (176 K) or LaTeX source (28 K) of Rev. 2.7 (11/9/11) Download PDF (152 K), B/W PDF (152 K), PS (176 K) or LaTeX source (28 K) of Rev. 2.6 (10/28/11) Download PDF (152 K), B/W PDF (152 K), PS (176 K) or LaTeX source (28 K) of Rev. 2.5 (09/12/11) Download PDF (152 K), B/W PDF (152 K), PS (168 K) or LaTeX source (28 K) of Rev. 2.4 (03/09/11) Download PDF (144 K), B/W PDF (144 K), PS (176 K) or LaTeX source (27 K) of Rev. 2.3 (03/04/11) Download PDF (144 K), B/W PDF (144 K), PS (176 K) or LaTeX source (26 K) of Rev. 2.2 (02/24/11) Download PDF (152 K), B/W PDF (144 K), PS (168 K) or LaTeX source (27 K) of Rev. 2.1 (02/22/11) Download PDF (144 K), B/W PDF (144 K), PS (168 K) or LaTeX source (24 K) of Rev. 2.0 (02/10/11) Download PDF (128 K), B/W PDF (128 K), PS (160 K) or LaTeX source (19 K) of Rev. 1.9 (08/16/10) Download PDF (114 K), PS (132 K) or LaTeX source (18 K) of Rev. 1.8 (08/13/08) Download PDF (114 K), PS (131 K) or LaTeX source (18 K) of Rev. 1.7 (07/30/08) Download PDF (114 K), PS (131 K) or LaTeX source (18 K) of Rev. 1.6 (07/29/08) Download PDF (114 K), PS (132 K) or LaTeX source (19 K) of Rev. 1.5 (07/28/08) Download PDF (108 K), PS (127 K) or LaTeX source (17 K) of Rev. 1.4 (07/27/08) Download PDF (87 K), PS (95 K) or LaTeX source (16 K) of Rev. 1.3 (02/13/08) Download PDF (86 K), PS (95 K) or LaTeX source (15 K) of Rev. 1.2 (02/12/08) Download PDF (88 K), PS (96 K) or LaTeX source (16 K) of Rev. 1.1 (02/11/08) Download PDF (88 K), PS (96 K) or LaTeX source (16 K) of Rev. 1.0 (02/11/08)

| 05/11/06 | acis_make_bkgd spec This document describes a specification for the ACIS tool acis_make_bkgd. Download PDF, PS (87 K) or LaTeX source (17 K) of Rev. 1.4 (05/11/06) Download PDF, PS (87 K) or LaTeX source (13 K) of Rev. 1.3 (04/08/05) Download PDF, PS (81 K) or LaTeX source (11 K) of Rev. 1.2 (04/01/05) Download PDF, PS (80 K) or LaTeX source (9 K) of Rev. 1.1 (03/16/05) Download PDF, PS (75 K) or LaTeX source (5 K) of Rev. 1.0 (02/18/05)

| 01/19/07 | acis_process_events: bad-pixel spec This document describes a specification for the use of bad-pixel files by the ACIS tool acis_process_events. Download PDF, PS (68 K) or LaTeX source (4 K) of Rev. 1.0 (01/19/07)

| 10/01/02 | acisreadcorr spec This document describes a specification for the computation of TIME for the ACIS tool acisreadcorr. Download PDF, PS (51 K) or LaTeX source (5 K) of Rev. 1.3b (10/01/02)

| 10/06/09 | Bad pixel spec This document describes the use of the parameters bitflag and usrfile for the tool acis_build_badpix. Download PDF (78 K), PS (92 K) or LaTeX source (11 K) of Rev. 2.5 (10/06/09) Download PDF (78 K), PS (92 K) or LaTeX source (10 K) of Rev. 2.4 (04/24/09) Download PDF (77 K), PS (91 K) or LaTeX source (10 K) of Rev. 2.3 (04/01/09) Download PDF (77 K), PS (91 K) or LaTeX source (10 K) of Rev. 2.2 (03/20/09) Download PDF (77 K), PS (91 K) or LaTeX source (10 K) of Rev. 2.1 (03/19/09) Download PDF (77 K), PS (91 K) or LaTeX source (10 K) of Rev. 2.0 (03/18/09) Download PDF (68 K), PS (77 K) or LaTeX source (10 K) of Rev. 1.8 (03/06/09) Download PDF (68 K), PS (77 K) or LaTeX source (10 K) of Rev. 1.7 (03/04/09) Download PDF (68 K), PS (77 K) or LaTeX source (9 K) of Rev. 1.6 (02/20/09) Download PDF (66 K), PS (77 K) or LaTeX source (9 K) of Rev. 1.5 (11/24/08) Download PDF (68 K), PS (78 K) or LaTeX source (9 K) of Rev. 1.4 (08/15/08) Download PDF, PS (74 K) or LaTeX source (8 K) of Rev. 1.3 (04/18/07) Download PDF, PS (74 K) or LaTeX source (8 K) of Rev. 1.2 (02/27/07) Download PDF, PS (73 K) or LaTeX source (8 K) of Rev. 1.1 (01/22/07) Download PDF, PS (74 K) or LaTeX source (8 K) of Rev. 1.0 (11/17/06)

| 03/15/00 | ACIS Analysis Reference Data Interface Control Document This document describes the formats of the Analysis Reference Data files used by the ACIS tools. Download PDF, PS (113 K) of Rev 2.1 (03/15/00) Download PDF, PS (119 K) of Rev 2.0 (11/30/99) Download PDF, PS (525 K) or LaTeX source of Rev 1.3 (03/12/99)

| 09/05/06 | Bias header keywords This spec describes how to determine the values of some of the keywords in the header of an ACIS bias file. Download PDF, PS (61 K) or LateX source (2 K) of Rev. 1.0 (09/05/06)

| 11/2/12 | Bias-parity errors This spec describes how to handle bias-parity errors when producing a bad-pixel file. Download PDF (288 K), PDF B/W (288 K), PS (240 K) or LateX source (18 K) of Rev. 0.4 (11/2/12) Download PDF (288 K), PDF B/W (288 K), PS (152 K) or LateX source (18 K) of Rev. 0.3 (08/20/10) Download PDF (272 K), PDF B/W (272 K), PS (144 K) or LateX source (13 K) of Rev. 0.2 (08/18/10) Download PDF (280 K), PS (152 K) or LateX source (14 K) of Rev. 0.1 (07/22/10)

| 05/25/11 | Bias repair and replacement This spec describes how to repair or replace a bias for an observation with a suitable bias from another observation. Download PDF (3471 K), B/W PDF (3471 K), PS (5940 K), or LaTeX source (23 K) of Rev 5.5 (05/25/11) Download PDF (3471 K), PS (5931 K), or LaTeX source (22 K) of Rev 5.4 (05/13/10) Download PDF (3469 K), PS (5931 K), or LaTeX source (22 K) of Rev 5.3 (05/12/10) Download PDF (3469 K), PS (5931 K), or LaTeX source (21 K) of Rev 5.2 (05/05/10) Download PDF (3467 K), PS (5931 K), or LaTeX source (20 K) of Rev 5.1 (04/16/10) Download PDF (3468 K), PS (5931 K), or LaTeX source (21 K) of Rev 5.0 (04/13/10) Download PDF (3479 K), PS (5937 K), or LaTeX source (25 K) of Rev 4.4 (04/07/10) Download PDF (3480 K), PS (5937 K), or LaTeX source (25 K) of Rev 4.3 (02/02/10) Download PDF (3480 K), PS (5938 K), or LaTeX source (25 K) of Rev 4.2 (12/08/09) Download PDF (3480 K), PS (5940 K), or LaTeX source (25 K) of Rev 4.1 (11/13/09) Download PDF (3481 K), PS (5939 K), or LaTeX source (25 K) of Rev 4.0 (11/11/09) Download PDF (2355 K), PS (4052 K), or LaTeX source (21 K) of Rev 3.1 (11/04/09) Download PDF (2304 K), PS (3964 K), or LaTeX source (20 K) of Rev 3.0 (11/03/09) Download PDF (1105 K), PS (1926 K), or LaTeX source (11 K) of Rev 2.0 (09/02/09) Download PDF (56 K), PS (69 K), or LaTeX source (3 K) of Rev 1.0 (08/12/09)

| 03/10/08 | Check VFAINT background This document describes an algorithm that can be used to search for potential cosmic-ray background events in the data for TIMED VFAINT mode observations. Download PDF (79 K), PS (157 K) or LateX source (5 K) of Rev. 1.4 (03/10/08) Download PDF, PS (158 K) or LateX source (5 K) of Rev. 1.3 (09/22/06) Download PDF, PS (157 K) or LateX source (5 K) of Rev. 1.2 (09/01/06) Download PDF, PS (153 K) or LateX source (5 K) of Rev. 1.1 (04/24/06) Download PDF, PS (150 K) or LateX source (5 K) of Rev. 1.0 (04/24/06)

| 10/27/10 | CTI spec This document describes how to compute the CTI-adjusted values of PHAS, PHA, ENERGY, PI, FLTGRADE, and GRADE for ACIS event data. The algorithm includes a temperature-dependent scaling factor for the integrated trap-density maps. Download PDF (152 K), B/W PDF (152 K), PS (176 K) or LateX source (34 K) of Rev. 7.2 (10/27/10) Download PDF (148 K), B/W PDF (148 K), PS (172 K) or LateX source (36 K) of Rev. 7.1 (10/10/10) Download PDF (152 K), B/W PDF (152 K), PS (176 K) or LateX source (34 K) of Rev. 7.0 (06/08/10) Download PDF (144 K), PS (152 K) or LateX source (38 K) of Rev. 6.2 (09/01/09) Download PDF, PS (134 K) or LateX source (36 K) of Rev. 6.1 (08/14/06) Download PDF, PS (134 K) or LateX source (36 K) of Rev. 6.0 (08/11/06) Download PDF, PS (130 K) or LateX source (35 K) of Rev. 5.8 (02/02/06) Download PDF (132 K) or PS (132 K) or LateX source (36 K) of Rev. 5.7 (01/27/06) Download PDF, PS (132 K) or LateX source (36 K) of Rev. 5.6 (01/17/06) Download PDF, PS (132 K) or LateX source (35 K) of Rev. 5.5 (01/13/06) Download PDF, PS (131 K) or LateX source (34 K) of Rev. 5.4 (12/19/05) Download PDF, PS (132 K) or LateX source (36 K) of Rev. 5.3 (12/16/05) Download PDF, PS (129 K) or LateX source (31 K) of Rev. 5.2 (12/13/05) Download PDF, PS (129 K) or LateX source (31 K) of Rev. 5.1 (12/07/05) Download PDF, PS (127 K) or LateX source (29 K) of Rev. 5.0 (12/06/05) Download PDF, PS (119 K) or LateX source (30 K) of Rev. 4.10 (10/28/05) Download PDF, PS (83 K) or LateX source (30 K) of Rev. 4.9 (04/13/04) Download PDF, PS (83 K) or LateX source (30 K) of Rev. 4.8 (05/02/03) Download PDF, PS (71 K) or LateX source (26 K) of Rev. 4.7b (09/09/02)

| 04/30/12 | DELTOCLK spec This document describes the algorithm used to identify anomalous DELTOCLK values. Download PDF (496 K), PS (304 K) or LateX source (22 K) of Rev. 2.0 (04/30/12) Download PDF (491 K), B/W PDF (491 K), PS (312 K) or LateX source (14 K) of Rev. 1.4 (03/13/12) Download PDF (488 K), B/W PDF (488 K), PS (216 K) or LateX source (14 K) of Rev. 1.3 (06/18/11) Download PDF (152 K), B/W PDF (152 K), PS (144 K) or LateX source (13 K) of Rev. 1.2 (06/15/11) Download PDF (76 K), B/W PDF (76 K), PS (112 K) or LateX source (8 K) of Rev. 1.1 (06/10/11) Download PDF (60 K), PS (86 K) or LateX source (4 K) of Rev. 1.0 (06/03/11)

| 01/08/07 | Computation of FLTGRADE, GRADE, and PHA This document describes how to compute FLTGRADE, GRADE, and PHA for ACIS event data. Download PDF, PS (88 K) or LateX source (7 K) of Rev. 1.5 (01/08/07) Download PDF, PS (64 K) or LateX source (7 K) of Rev. 1.4 (05/16/03) Download PDF, PS (64 K) or LateX source (7 K) of Rev. 1.3b (09/09/02) Download PS (280 K) of Rev. 1.1 (04/02/99)

| 09/09/02 | Computation of ONTIME, DTCOR, and EXPOSURE This document describes how to compute TIMEDEL, FLSHTIME, ONTIME, DTCOR, and EXPOSURE for ACIS event data. Download PDF, PS (66 K) or LaTeX source (11 K) of Rev. 1.2b (09/09/02)

| 09/09/02 | Computation of QUERY_VAL This document describes how to compute QUERY_VAL for ACIS housekeeping data. Download PDF, PS (59 K) or LaTeX source (13 K) of Rev. 1.1 (09/09/02) Download PDF, PS (59 K) or LaTeX source (13 K) of Rev. 1.0 (08/26/02)

| 04/04/06 | Computation of X, Y, and TIMEs of Arrival of CC-Mode Events This document describes how to compute the sky coordinates and times of arrival of photons at the detector for CC-mode event data. Download PDF, PS (95 K) or LaTeX source (12 K) of Rev. 4.6 (04/04/06) Download PDF, PS (99 K) or LaTeX source (12 K) of Rev. 4.5 (01/14/05) Download PDF, PS (61 K) or LaTeX source (11 K) of Rev. 4.4 (04/25/03) Download PDF, PS (60 K) or LaTeX source (12 K) of Rev. 4.3b (09/09/02) Download PDF, PS (58 K) or LaTeX source (91 K) of Rev. 4.1 (12/18/01) Download PS (1.7 M) file of Chandra Calibration Workshop presentation, November 2002 (11/07/02)

| 02/27/07 | A caveat about FLTGRADE = 255 in Level 1 event files This document describes why Level 1 event files can contain events that have FLTGRADE = 255. Download PDF, PS (66 K) or LaTeX source of Rev 1.0 (02/27/07)

| 02/11/11 | Hot-pixel spec This document describes a specification for a hot-pixel detection algorithm. It supersedes the older acis_detect_hotpix spec and is superseded by the newer afterglow and hot-pixel detection spec. Download PDF (112 K), PS (144 K) or LaTeX source (12 K) of Rev. 2.3 (01/23/11) Download PDF (98 K), PS (120 K) or LaTeX source (12 K) of Rev. 2.2 (10/23/09) Download PDF (98 K), PS (120 K) or LaTeX source (12 K) of Rev. 2.1 (07/30/08) Download PDF (98 K), PS (120 K) or LaTeX source (11 K) of Rev. 2.0 (07/29/08)

| 10/23/00 | ACIS Level 0 Interface Control Document This document describes the formats of the Level 0 data products. Download PDF, PS (124 K) or Framemaker source of Rev 3.2 (10/23/00) Download PDF, PS (123 K) or Framemaker source of Rev 3.1 (08/10/00) Download PDF, PS (122 K) or Framemaker source of Rev 3.0 (08/18/99) Download PDF or PS (115 K) of Rev 2.11 (06/08/99) Download PDF, PS (107 K) or Framemaker source of Rev 2.10 (04/05/99) Download older revisions of the ICD

| 09/11/00 | ACIS Level 1 Interface Control Document This document describes the formats of the Level 1 data products. Download PDF, PS (60 K) or Framemaker source of Rev 2.3 (12/03/01) Download PDF, PS (60 K) or Framemaker source of Rev 2.2 (09/11/00) Download PDF, PS (59 K) or Framemaker source of Rev 2.1 (08/10/00) Download PDF, PS (57 K) of Rev 2.0 (11/05/99) Download PDF, PS (56 K) or Framemaker source of Rev 1.10 (08/05/99) Download PDF, PS (55 K) or Framemaker source of Rev 1.9 (04/07/99) Download older revisions of the ICD

| 06/08/05 | Notes about ACIS instrument geometry data This document describes some self-consistency tests of the LSI coordinates of the ACIS CCDs. Download PDF, PS (142 K) or LaTeX source of Rev 1.0 (06/08/05)

| 06/12/07 | Mean biases This document describes a specification for computing observation-specific biases from mean biases. Download PDF (59 K), PS (75 K) or LaTeX source (3 K) of Rev 1.2 (06/12/07) Download PDF (52 K), PS (66 K) or LaTeX source (2 K) of Rev 1.1 (06/04/07) Download PDF (52 K), PS (66 K) or LaTeX source (2 K) of Rev 1.0 (05/30/07)

| 07/10/02 | ACIS Pipeline Processing Caveats This document describes caveats about ACIS pipeline-produced event data. HTML (07/10/02)

| 02/28/00 | ACIS Pipeline Processing Tools This document describes the ACIS pipeline processing tools. Download PDF or PS (90 K) of DRAFT of Rev 2.1 (02/28/00) Download PDF or PS (89 K) of Rev 2.0 (11/01/99)

| 06/19/07 | STATUS bits in bad pixel files This document describes the conditions for which the STATUS bits in ACIS bad pixel files are set. Download PDF (59), PS (73 K) or LaTeX source (10 K) of Rev 1.11 (06/19/07) Download PDF, PS (67 K) or LaTeX source (10 K) of Rev 1.10 (05/04/06) Download PDF, PS (67 K) or LaTeX source (10 K) of Rev 1.9 (08/29/05) Download PDF, PS (67 K) or LaTeX source (9 K) of Rev 1.8 (08/23/05) Download PDF, PS (65 K) or LaTeX source (7 K) of Rev 1.7 (05/20/05) Download PDF, PS (69 K) or LaTeX source (7 K) of Rev 1.6 (12/15/04) Download PDF, PS (69 K) or LaTeX source (7 K) of Rev 1.5 (10/27/04) Download PDF, PS (70 K) or LaTeX source (7 K) of Rev 1.4 (10/15/04) Download PDF, PS (69 K) or LaTeX source (7 K) of Rev 1.3 (06/30/04) Download PDF, PS (69 K) or LaTeX source (6 K) of Rev 1.2 (06/28/04) Download PDF, PS (50 K) or LaTeX source (6 K) of Rev 1.1 (09/25/02)

| 05/18/09 | STATUS bits in event files This document describes the conditions for which the STATUS bits in ACIS event data files are set. Download PDF (67 K), PS (74 K) or LaTeX source (12 K) of Rev 2.3 (05/18/09) Download PDF, PS (73 K) or LaTeX source (12 K) of Rev 2.2 (01/19/07) Download PDF, PS (71 K) or LaTeX source (11 K) of Rev 2.1 (04/24/06) Download PDF, PS (71 K) or LaTeX source (11 K) of Rev 2.0 (04/06/06) Download PDF, PS (71 K) or LaTeX source (9 K) of Rev 1.9 (03/29/06) Download PDF, PS (70 K) or LaTeX source (8 K) of Rev 1.8 (11/17/05) Download PDF, PS (51 K) or LaTeX source (8 K) of Rev 1.7 (03/05/03) Download PDF, PS (51 K) or LaTeX source (8 K) of Rev 1.6 (10/18/02)

| 09/14/10 | Sub-Pixel Event-Repositioning Spec This document is a spec describing the sub-pixel event-repositioning algorithm. Download PDF (112 K), B/W PDF (112 K), PS (136 K) or LaTeX source (14 K) of Rev 1.2 (09/14/10) Download PDF (112 K), B/W PDF (112 K), PS (136 K) or LaTeX source (14 K) of Rev 1.1 (09/07/10) Download PDF (112 K), PS (136 K) or LaTeX source (14 K) of Rev 1.0 (05/19/10) Download PDF (112 K), PS (136 K) or LaTeX source (15 K) of Rev 0.3 (05/14/10) Download PDF (112 K), PS (128 K) or LaTeX source (13 K) of Rev 0.2 (05/13/10) Download PDF (88 K), PS (108 K) or LaTeX source (10 K) of Rev 0.1 (05/11/10)

| 04/06/03 | Time-Dependent Gain ARD This document describes the format of the ARD file used to compute the time-dependent gain adjustment. Download PDF, PS (53 K) or LaTeX source (5 K) of Rev 1.0 (06/04/03)

| 06/02/06 | Time-Dependent Gain spec This document specifies how to apply the time-dependent gain adjustment. Download PDF, PS (91 K) or LaTeX source (16 K) of Rev 1.6 (06/02/06) Download PDF, PS (95 K) or LaTeX source (16 K) of Rev 1.5 (04/20/04) Download PDF, PS (60 K) or LaTeX source (15 K) of Rev 1.4 (09/24/03) Download PDF, PS (61 K) or LaTeX source (15 K) of Rev 1.3 (09/16/03) Download PDF, PS (60 K) or LaTeX source (15 K) of Rev 1.2 (06/09/03)

| 11/15/04 | New ACIS-S Geometry File This document specifies the update on ACIS-S CCD chip corner positions and MEG grating period. Download PS (562 K) or LaTeX source (16 K) of Rev 1.0 (11/15/04)

###### Subject: HETG and LETG

| 2009.11.24 | HRC-S/LETG Tgain correction This document describes the LETG+HRC-S time-dependent linearized PI computation ("SPI") and event filter for background reduction. Current version: PDF Ver. 1.4 (24 November 2009) Previous version: PDF Ver. 1.3 (8 July 2009)

| 11/02/04 | LETG+ACIS-S Spurious Rotation Issue This document describes the LETG+ACIS-S spurious rotation issue. Download PS (331 K) or LaTeX source (12 K) of Ver. 1.0 (11/02/04)

| 2004.06.11 | Technical Note: LETG/ACIS-S rotation compensation Modification to extraction region to compensate for anomalous rotation residuals. Download PS

| 03/23/06 | Finding Zeroth Order Position This document describes a new algorithm of detecting zeroth order position. Download PS (238 K) or LaTeX source (77 K) of Ver. 1.4 (04/11/07)

| 03/27/99 | Transmission Grating L1.5 to Archive Interface Control Document A detailed description of Grating L1.5 (event diffraction coordinates) data products. Download PS LaTeX source Change-Orders. Previous version: Download PS LaTeX source

| 05/28/99 | Transmission Grating Level 2 to Archive Interface Control Document A description of Grating Level 2 data products (binned spectrum). Download PS LaTeX source Change-Orders. Previous version: Download PS LaTeX source

| 06/04/99 | Grating Tool Specifications: Level 1.5 LETG/HESF Region Mask Definitions and Wavelength Determination Download PS (25 pages); Download LaTeX source.

| 04/22/99 | Grating Tool Specifications: Level 1.5: ACIS Continuous-Clocking Mode Processing Download PS (10 pages); Download LaTeX source.

###### Subject: PSF

| 12/28/01 | ICD for the GRATING LSF LIBRARY A detailed description of the LSF Library files. download PS ..... (943 K) download Latex Source ..... (23 K)

| 10/07/98 | PSF TOOL ICD The PSF tool ICD. download PS ..... (56 K) download Latex Source ..... (3 K)

| 02/24/00 | LSF LIBRARY and TOOLS TECHNICAL REFERENCE The LSF Library and Tools Technical Reference. download PS ..... (588 K) HTML .....

| 12/28/01 | LSF GUIDE The LSF Guide. download PS ..... (437 K) HTML .....

| 06/10/04 | Data Randomization / New Header Keywords This document describes how we propose to implement additional FITS keywords into Level 1 Event products and higher. Download PS (53 K) or LaTeX source (6 K) of Rev 0.2 (03/01/04) Download PS (53 K) or LaTeX source (6 K) of Rev 0.3 (03/03/04) Download PS (53 K) or LaTeX source (6 K) of Rev 0.4 (03/15/04) Download PS (53 K) or LaTeX source (6 K) of Rev 1.0 (06/10/04)

| 05/03/04 | LSFPARM for HETG+ACIS-S validated for unrandomized datasets This document describes the quality of new non-randomized LSFPARM products for HETG+ACIS-S configuration. Download PS (376 K) or LaTeX source (39 K) of Ver. 1.0 (04/26/04) Download PS (372 K) or LaTeX source (40 K) of Ver. 1.1 (05/03/04)

| 05/03/04 | LSFPARM for LETG+HRC-S validated for unrandomized datasets This document describes the quality of new non-randomized LSFPARM products for LETG+HRC-S configuration. Download PS (287 K) or LaTeX source (9 K) of Ver. 1.0 (05/03/04)

| 07/20/04 | LSFPARM for LETG+ACIS-S validated for unrandomized datasets This document describes the quality of new non-randomized LSFPARM products for LETG+ACIS-S configuration. Download PS (181 K) or LaTeX source (26 K) of Ver. 1.0 (07/20/04)

| 01/22/07 | Updated LSFPARM for MEG+ACIS-S for unrandomized datasets This document describes the quality of new non-randomized LSFPARM products for MEG+ACIS-S configuration. Download PS (185 K) or LaTeX source (20 K) of Ver. 1.0 (01/22/06)

###### Subject: Analysis Reference Data

| 3/26/99 | Exposure Maps and Gratings Data Level 1.5 and 2.0 Analysis Reference Data ICD Interface Control Document describing the reference data read by exposure map and gratings pipelines and tools. ACIS Spatial Contamination pages (2004.10.13 UPDATE) Download PS (about 80 pages) or LaTeX source or LaTeX template for new files. Change-Orders.

| 04/21/98 | Spectroscopy Database: Analysis Reference Data ICD The format of the Spectroscopy Database files to be used in L2 spectral analysis is described here. Download PS .... (511K) Download LaTeX source .... (40K ARD_template)

###### Subject: ISIS

| 1/8/99 | ISIS: Interactive Spectral Interpretation System Describes the functions we wish to include in the analysis system for high resolution X-ray spectra (currently under development). Download PS ..... (392 K)

###### Subject: Exposure Map

| 2/09/99 | Exposure Map Data Products ICD Download PDF, PS, or LaTeX source
|  | 2/08/99 | Aspect Histogram Processing and Data Products ICD Download PDF, PS, or LaTeX source (About 14 pages/1 MB de-compressed) |  | 09/11/2000 | Introduction to Exposure Maps Download PDF or PS (12 pages, about 1 Mb uncompressed)

###### Subject: Miscellaneous

An Introduction to S-Lang

Talk by John E. Davis, from CXC S-Lang class (January, 2003)
(pdf)

Advanced S-Lang Applications

Talk by John C. Houck, from CXC S-Lang class (January, 2003)
(pdf) (ps)

Examples of S-Lang in Data Analysis

Notes by David Huenemoerder from CXC S-Lang classes (January, 2003)
(ps) (pdf)
The Slides (a less detailed version of the Notes):
(ps) (pdf)

| 12/13/2001 | CIAO 3 Interactive Analysis Planning Architecture design for interactive analysis and rapid prototyping. Download PS ..... Download Part 2 (summary for discussion, some Slang examples) .....

| 04/02/97 | AXAF Transmission Grating Diffraction Coordinates Describes the transformation from reported event positions to dispersion coordinates. Download PS ..... (101 K)

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