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Jiafeng
csst-l1doc
Commits
2d43c33f
Commit
2d43c33f
authored
Mar 06, 2023
by
Wang Xia
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Update algorithm.rst
parent
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@@ -18,35 +18,43 @@ Instrument correction
数据产品
``````````````````
`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。参考文件列表如下
:
`csst_ms_sls_instrument`
生成的数据产品是三
个扩展fits文件,
扩展内容如下表所示
:
+-----------------+---------+-------------------+
| Extension name | Bunit | Comment |
+=================+=========+===================+
| SCI | e-/s |
s
cience image |
| SCI | e-/s |
S
cience image |
+-----------------+---------+-------------------+
| ERR | e-/s |
e
rror array |
| ERR | e-/s |
E
rror array |
+-----------------+---------+-------------------+
| DQ | unitless|
d
ata quality array|
| DQ | unitless|
D
ata quality array|
+-----------------+---------+-------------------+
.. _DataModel: https://csst-tb.bao.ac.cn/code/csst-l1/csst-l1doc/-/blob/main/docs/source/sls/data_model.md
第一个扩展(SCI)的数据单元存放着仪器效应改正后的光谱图像,第二扩展(ERR)的数据单元存放着光谱图像误差,第三个扩展(DQ)的数据单元存放着光谱图像每个像素的数据质量标志位,具体参见 DQFlags_。
CSST无缝光谱模块的1级数据产品是三个扩展的fits文件,扩展内容如下表所示:
.. _DQFlags: https://?
+-----------------+---------+-------------------+
| Extension name | Bunit | Comment |
+=================+=========+===================+
| SCI | e-/s | science image |
+-----------------+---------+-------------------+
| ERR | e-/s | error array |
+-----------------+---------+-------------------+
| DQ | unitless| data quality array|
+-----------------+---------+-------------------+
处理过程
``````````````````
`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。参考文件列表如下,第一列是参考文件类型,第二列是文件说明,第三列是数据产品中记录文件名的关键字:
+-----------------+----------------------------+-----------------+
| Reference file | Description | Keyword |
+=================+============================+=================+
| Gain map | gain array(9k×9k) | R_GAIN |
+-----------------+----------------------------+-----------------+
| Superbias | superbias file(9k×9k) | R_BIAS |
+-----------------+----------------------------+-----------------+
| Superdark | superdark file(9k×9k) | R_DARK |
+-----------------+----------------------------+-----------------+
| Superflat | super flatfield file(9k×9k)| R_DFLAT |
+-----------------+----------------------------+-----------------+
| Badpixel table | Bad/hot Pixel table or map | R_MASK |
+-----------------+----------------------------+-----------------+
.. _DataModel: https://csst-tb.bao.ac.cn/code/csst-l1/csst-l1doc/-/blob/main/docs/source/sls/data_model.md
第一个扩展(SCI)的数据单元存放着仪器效应改正后的光谱图像,第二扩展(ERR)的数据单元存放着光谱图像误差,第三个扩展(DQ)的数据单元存放着光谱图像每个像素的数据质量标志位,具体参见 DQFlags_。
.. _DQFlags: https://?
Position calibration
---------------------
...
...
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