STIX Bulk Science Data - Revision history

Hualin at 07:02, 26 May 2021

2021-05-26T07:02:33Z

2021-05-26T07:02:25Z

2021-05-26T07:01:07Z

2021-05-26T07:00:47Z

2021-05-26T07:00:34Z

2021-05-26T07:00:10Z

2021-05-26T06:59:41Z

2021-05-23T10:18:29Z

Created page with "This page is under construction."

New page

This page is under construction.

@@ Line 16: / Line 16: @@
 * a calibration path that acquires data needed to establish the energy calibration of each detector/pixel.
-=== Prompt processing ====
+=== Prompt processing ===
 From a digital perspective, the X-ray input to this task consists of
 an asynchronous stream of 24-bit ‘photon words’, each of which

@@ Line 15: / Line 15: @@
 * a quick-look (QL) path that supports the generation of light curves and other products used to monitor the performance of the instrument and to provide a continuous overview of solar activity;
 * a calibration path that acquires data needed to establish the energy calibration of each detector/pixel.
 </big>

@@ Line 13: / Line 13: @@
 three parallel paths:
 * a primary path that handles the X-ray imaging and spectroscopy data;
-* a quick-look (QL) path that supports the generation of light
+* a quick-look (QL) path that supports the generation of light curves and other products used to monitor the performance of the instrument and to provide a continuous overview of solar activity;
-curves and other products used to monitor the performance
+* a calibration path that acquires data needed to establish the energy calibration of each detector/pixel.
 </big>

@@ Line 12: / Line 12: @@
 software running on a LEON3 processor then proceeds along
 three parallel paths:
-* a primary path that handles the X-ray imaging and spec-
+* a primary path that handles the X-ray imaging and spectroscopy data;
 * a quick-look (QL) path that supports the generation of light
 curves and other products used to monitor the performance

@@ Line 12: / Line 12: @@
 software running on a LEON3 processor then proceeds along
 three parallel paths:
-– a primary path that handles the X-ray imaging and spec-
+* a primary path that handles the X-ray imaging and spec-
 troscopy data;
-– a quick-look (QL) path that supports the generation of light
+* a quick-look (QL) path that supports the generation of light
 curves and other products used to monitor the performance
 of the instrument and to provide a continuous overview of
 solar activity;
-– a calibration path that acquires data needed to establish the
+* a calibration path that acquires data needed to establish the
 energy calibration of each detector/pixel.
 </big>

@@ Line 1: / Line 1: @@
 == Onboard data handling ==
-The design driver for the IDPU’s X-ray data processing is
+<big>The design driver for the IDPU’s X-ray data processing is
 the need to reconcile an input stream of up to 800,000 photons
 per second (∼20 Mbits/sec) to a telemetry budget of 700 bits per
@@ Line 20: / Line 20: @@
 – a calibration path that acquires data needed to establish the
 energy calibration of each detector/pixel.

← Older revision		Revision as of 06:59, 26 May 2021
Line 1:		Line 1:
−	This ~~page~~ is ~~under construction~~.	+	== Onboard data handling ==
		+	The design driver for the IDPU’s X-ray data processing is
		+	the need to reconcile an input stream of up to 800,000 photons
		+	per second (∼20 Mbits/sec) to a telemetry budget of 700 bits per
		+	second. This is done by combining rapid FPGA sorting and ac-
		+	cumulation of individual events with slower application software
		+	that processes the accumulator contents. Figure 17 indicates the
		+	overall data flow.
		+	The goal of the FPGA’s prompt processing is to sort and sum
		+	the input photon stream into accumulators on the basis of their
		+	detector ID, pixel ID and detected energy in keV. Application
		+	software running on a LEON3 processor then proceeds along
		+	three parallel paths:
		+	– a primary path that handles the X-ray imaging and spec-
		+	troscopy data;
		+	– a quick-look (QL) path that supports the generation of light
		+	curves and other products used to monitor the performance
		+	of the instrument and to provide a continuous overview of
		+	solar activity;
		+	– a calibration path that acquires data needed to establish the
		+	energy calibration of each detector/pixel.