algorithm.rst 1.9 KB
Newer Older
BO ZHANG's avatar
tweaks    
BO ZHANG committed
1
2
SLS pipeline
============
BO ZHANG's avatar
BO ZHANG committed
3
4
5
6
7


Instrument correction
---------------------

Wang Xia's avatar
Wang Xia committed
8
9
概述
``````````````````
Wang Xia's avatar
Wang Xia committed
10
`csst_ms_sls_instrument` 程序包是应用于CSST无缝光谱模块的仪器效应改正程序,无缝光谱模块包含12个9k×9k探测器,每4块探测器对应1个波段,每个波段的部分仪器参数如下:
Wang Xia's avatar
Wang Xia committed
11

Wang Xia's avatar
Wang Xia committed
12
13
14
    - GU: 660×660″ field of view from 255-400nm with a plate scale of 0.074″/pixel
    - GV: 660×660″ field of view from 400-620nm with a plate scale of 0.074″/pixel
    - GI: 660×660″ field of view from 620-1000nm with a plate scale of 0.074″/pixel
Wang Xia's avatar
Wang Xia committed
15
`csst_ms_sls_instrument` 将顺序执行一系列的探测器效应改正,生成单次曝光图像预处理后的数据产品。该程序是用Python语言实现,代码地址:code_。
Wang Xia's avatar
Wang Xia committed
16

Wang Xia's avatar
Wang Xia committed
17
.. _code: https://csst-tb.bao.ac.cn/code/csst-l1/sls/csst_ms_sls_instrument
BO ZHANG's avatar
BO ZHANG committed
18

Wang Xia's avatar
Wang Xia committed
19
20
数据产品
``````````````````
Wang Xia's avatar
Wang Xia committed
21
`csst_ms_sls_instrument` 将从`csst_common.CsstMsDataManager` 获取0级数据和参考文件。0级数据是有一个扩展的fits文件,头文件中存放着观测天区、曝光信息、探测器信息等,具体关键字说明参见 DataModel_,扩展的数据单元存放着原始观测图像。
Wang Xia's avatar
Wang Xia committed
22
23

.. _DataModel: https://csst-tb.bao.ac.cn/code/csst-l1/csst-l1doc/-/blob/main/docs/source/sls/data_model.md
Wang Xia's avatar
Wang Xia committed
24

Wang Xia's avatar
Wang Xia committed
25
26
27
28
29
30
31
32
33
34
CSST无缝光谱的1级数据产品是三个扩展的fits文件,扩展内容如下表所示:
+-----------------+---------+-------------------+
| Extension Name  |  bunit  | comment           |
+=================+=========+===================+
| SCI             | e-/s    | science image     |
+-----------------+---------+-------------------+
| ERR             | e-/s    | error array       |
+-----------------+---------+-------------------+
| DQ              | unitless| data quality array|
+-----------------+---------+-------------------+
Wang Xia's avatar
Wang Xia committed
35

BO ZHANG's avatar
BO ZHANG committed
36
37
38
39
40
41
42
43
44
45
Position calibration
---------------------

`csst_ms_sls_position` package.


API
---

TODO