Chandra X-Ray CenterACIS Data Products:Level 1 to CXC Archive Interface Control DocumentRev. 2.2 — September 11, 2000Submitted: ________________________________________________ __________Glenn Allen DateACIS Scientist, CXC Science Data SystemsConcurred: ________________________________________________ __________David Huenemoerder DateManager, MIT/CXC Science Data SystemsConcurred: ________________________________________________ __________Kenny Glotfelty DateManager, Level 1 Pipelines, CXC Data SystemsConcurred: ________________________________________________ __________Ian Evans DateEnd-to-End Scientist, CXC Data SystemsConcurred: ________________________________________________ __________Arnold Rots DateArchive Scientist, CXCConcurred: ________________________________________________ __________Janet DePonte DateManager, CXC Data SystemsConcurred: ________________________________________________ __________Martin Elvis DateGroup Leader, CXC Science Data SystemACIS DATA PRODUCTS: LEVEL 1 TO CXC ARCHIVE INTERFACE CONTROL DOCUMENTREV. 2.2 — SEPTEMBER 11, 2000 iiDocument and Change Control LogDate Version Section Status10/31/97 0.1 all Original release11/4/97 0.2 all Updates based on WMcL, JdP comments11/10/97 0.3 all Updates based on JMcD, DWK comments03/05/98 1.0 all Made compatible w/ ASC-FITS-1.0; updated file for-mats and contents based on revised tool functionality06/17/98 1.1 4 Added GTI definitions; updated exposure stats, mask,and bad pix file definitions07/02/98 1.2 4 KJG, DMcE comments; per-SR processing paradigm07/28/98 1.3 3 WMcL, DMcE comments; removed FITS specs08/06/98 1.4 3 Further WMcL, DMcE, KJG comments08/11/98 1.5 3 Made badpix and mask files 1 extension per CCD09/15/98 1.6 1,3 Updated Appl. Docs pointers; incorporated WMcL,KJG, AR comments (esp. EXT/HDU keywords)10/22/98 1.7 3 Updated exp. stats, bias file keywords; added docpointer for coord system keywords, removed from evtlist header; changed STATUS to 16X; revised maskfile description11/04/98 1.7.1 3 Fixed various typos12/11/98 1.7.2 3 Explicitly describes ONTIME/LIVETIME keywordsin GTI exts02/10/99 1.8 3 Changed TUNIT=’coded’ to ‘n/a’; added descriptionof new CC 3x3 modes; changed EXPTIME to 1E;changed GRD_SCHM to GRADESYS; dealt w/ spe-cial case of PHA=004/06/99 1.9 3 Added SPL_THR, SPL_FILE keywords to faintmode event headers; removed TLMIN/MAX forENERGY; added pixel order and TDIMn keyword toPHAS definition06/04/99 1.10 3 Clarified a few points, esp. file naming convention foralternating frame time mode08/05/99 1.11 3 Added NODE_ID column to event data files; changedthe four amplifier designations to be 0-3 instead of A-D in the exposure statistics and bias map file headersACIS DATA PRODUCTS: LEVEL 1 TO CXC ARCHIVE INTERFACE CONTROL DOCUMENTREV. 2.2 — SEPTEMBER 11, 2000 iii11/05/99 2.0 3.3, 3.5,3.6, 3.8Modified description of COMPONENT and STATUScolumns in bpix1.fits file; Modified STATUS columnof events file; Added TLMVER, FSW_VERS, andFP_TEMP keywords to events header; Modified for-mat of initial overclock keywords02/09/00 2.1 3.3, 3.8 Described computation of FP_TEMP; Revised CC3x3 mode section; changed TLMIN/MAX forCHIPX/Y and TDETX/Y09/07/00 2.2 3.3, 3.4, 3.7 Added FLSHTIME; Changed TLMIN/MAX ofCHIPX/Y, DETX/Y, X/Y, PI; Changed TFORM ofSTATUSDocument and Change Control LogDate Version Section StatusACIS DATA PRODUCTS: LEVEL 1 TO CXC ARCHIVE INTERFACE CONTROL DOCUMENTREV. 2.2 — SEPTEMBER 11, 2000 ivCONTENTS1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.3 Applicable Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.4.1 Data Content Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.4.2 Source and Transfer Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.4.3 Recipients and Utilization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.4.4 Pertinent Relationships with Other Interfaces . . . . . . . . . . . . . . . . . 31.5 Assumptions and Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.6 Products Not Covered. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.0 Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.1 Access Tools; Input / Output Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.2 Timing and Sequencing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43.0 Detailed Interface Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1 Labeling and Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.2 Substructure Definition and Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.2.1 Header / Trailer Description Details. . . . . . . . . . . . . . . . . . . . . . . . . 53.3 Event Data Files (*_evt1.fits) . . . . . . . . . . . . . . . . . . . . . . . . . . …
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