Japanese

UDON
SUZAKU XIS Quick Look Usage


Contents

SUZAKU XIS Quick Look - Screen Shot
Introduction

Image generation page
Image generation form
Pseud-color image
Image data extraction
Result of image data extraction
Error in image data extraction


Introduction

What is UDON?

UDON (Universe via Darts ON-line) is the system to analyze science satellite data archived in DARTS (Data Archives and Transmission System) via Internet (HTTP).
With UDON, you can analyze DARTS archival data using your browser without downloading data from DARTS!

What is SUZAKU XIS Quick Look?

SUZAKU XIS Quick Look is the web service to display pseudo-color X-ray images taken by SUZAKU XIS (X-ray Imaging Spectrometer).
Assigning Red, Green and Blue colors for soft, medium and hard energy images extracted from XIS event files, Suzaku UDON composites and displays the pseudo-color image.

UDON system to generate/display pseudo-color images from XIS event files
structure

How to generate and display XIS pseudo-color image?

XIS pseudo-color image can be generated/displayed on the image generation page. There are 2 ways to open this page,

  1. From the Suzaku public data list page
    Click the link button of QL UDON for each entry.
  2. From Basic retrieval screen  (Usage of Basic retrieval screen is here)
    Click the button of OBS ID section.
  3. JUDO2 から画像作成画面を開く方法  (JUDO2の説明はこちら
    UDON2 Jump Listの Satellite がSUZAKU, ASCA の行をクリックします。

When you specify the Sequence Number/OBSID, you will find a pseudo-color image made with the default color map on your first screen (image generation page). After that, you may change the color-tone by specifying the new energy boundaries in the dialog boxes in the left-hand side column  (usage of image generation screen is here).

JUDO2 から
JUDO2
UDON2 Jump Listの Satellite がSUZAKU, ASCA の行をクリックします。
down arrow  画像作成画面へ
画像作成画面

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Image generation screen

Image generation screen consists three frames; "Image generation form" frame (upper-left panel), "Pseudo-color image" frame (upper-right panel), "Image extraction" frame (lower panel).

You may specify the color-pattern of the pseudo-color image on the "Image generation form" frame, and the new image will appear on the "Pseudo-color image" frame by clicking the "Show image" button. Also, the operation result will be appeared on the "Image extraction" frame.

There are 4 different forms for specifying the energy boundaries (color patterns), in the "Image generation form". To switch the form, click "Prev. Form" button or "Next Form" button.



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Image generation form

Specify the extraction method of image data and the color pattern for pseudo-color image.

Usage of Image generation form
No. Image generation form Usage
1
OBS ID: 100009010 (ver 2.0)
Energy boundaries
Boundary Energy
Color
E0: keV
} red
} green
} blue
E1: keV
E2: keV
E3: keV
Image generation form: No.1
Divide the energy range from E0 to E3 into 3 energy ranges, as E0 to E1 is Red, E1 to E2 is Green, E2 to E3 is Blue.

This form uses the pre-made images created for fixed energy boundaries.

If E0 <= E1 <= E2 <= E3, the extract operation will terminate with error.

red, green, blue
Use red, green, blue

red, blue
Not use green

Reset   Reset the input value.
Show Image   Extract the image data, and the Pseudo-color image will be displayed.
Prev. Form   Switch to No.4.
Next Form   Switch to No.2.
2
OBS ID: 100009010 (ver 2.0)
Energy boundaries
Range Lower Upper
Color
B0: keV red
B1: keV green
B2: keV blue







Image generation form: No.2
You may specify the lower and upper energy boundaries for Red, Green and Blue images independently.

This form uses the pre-made image data at fixed energy boundaries.

Allocate Energy range as B0 is Red, B1 is Green, B2 is Blue.

if Lower <= Upper, then the operation will terminate with error.

red, green, blue
Use red, green blue

red, blue
Change the color pattern of red and blue

Reset   Reset the input value.
Show Image   Extract the image data, and the Pseudo-color image will be displayed.
Prev. Form   Switch to No.1.
Next Form   Switch to No.3.

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Pseudo-color image

When Image data extraction is completed, a pseudo-color image will be displayed.

The generated pseudo-color image will be displayed. You may interactively specify the extraction region on the image to extract the light curve and the spectrum.

擬似カラー画像の zoom

操作方法
擬似カラー画像の Zoom方法
右上画像内でマウスをドラッグし矩形を描画します。その範囲が、擬似カラー画像として拡大表示されます。

定義したエリアをリセットする方法
リセットボタンをクリックしてください。

shape

領域指定

Operation
Change shape of the defined area
Select the shape from the list box.

Reset the defined area
Click "Reset" button.

Extract the light curve and the spectrum of defined area
Click "Submit" button.

shape
If the operation terminate with error, the image will not appear.
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Image data extraction

Display the result of image extraction (using the "extractor" FTOOL) from the XIS event files with the Energy boundaries values defined in the Image generation screen.

Image generation form: If use the image extraction form No.1 or No.2, you are using the pre-extracted images, and new images are not extracted.

Errors in Image data extraction

If there are any errors in the Energy boundaries on the Image generation form, you will see the following get the error message.
Please confirm the error, revise the values and submit again Energy boundaries .

Sample: Errors in Energy boundaries (1)
Sample error message Explanation
E2: 0.200 is less than E1: 1.000.
E1 > E2 .
Please input values such that E0 <= E1 <= E2 <= E3 .

error:upside-down
E1 > E2
Specify coloring.
Correct color pattern is not selected. The input values are
E0 = E1 = E2 = E3 .
E0 is blank.
The entry field is blank.
Please input a positive value.
E0: -0.316: Specify a positive value.
The input value is negative.
Please input positive values.

Sample: Errors in Energy boundaries (2)
Sample error message Explanation
B1: Upper: 3.000 is less than Lower: 5.000.
In the input values for B1: Lower > Upper .
Please input values so that Lower <= Upper .

error:upside-down
Lower > Upper
Specify coloring.
Correct color pattern is not selected.
The values are either of the following: B0: Lower=Upper, B1: Lower=Upper, B2: Lower=Upper.
B0: Upper is blank.
The entry field is blank.
Please input positive values.
B0: Lower: -0.316: Specify a positive value.
The input value is negative.
Please input positive values.

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