From 56e488a2755df00813b22715c128a7617e1be735 Mon Sep 17 00:00:00 2001
From: Roberto Susino <susino@oato.inaf.it>
Date: Wed, 25 Nov 2020 16:24:41 +0100
Subject: [PATCH] Add CHANGELOG.md

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 CHANGELOG.md | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 CHANGELOG.md

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+# CHANGELOG
+All changes to the Metis L1 pipeline are documented in this file.
+
+## 2.2 – 2020-11-25
+- Change the way how the house-keeping parameters are saved into the FITS binary table, in order to prevent very long computation times when the house-keeping parameter table is large in data volume.
+- Modify the decode_obt.pro routine to fix a bug that caused the OBT_BEG and OBT_END keyword values to be converted from double to long.
+- Optimise some keyword description texts in the FITS header.
+- Add the make_bin_table.pro routine.
+- Remove the strreplace.pro routine.
+
+## 2.1 – 2020-11-13
+- Fix a bug that triggered the re-binning of VL images even when not necessary.
+- Fix a bug that caused an error in writing the log file for data products that are not images (e.g., light curves).
+
+## 2.0 – 2020-10-06
+- Include the re-binning of images that had been acquired with binning enabled, so that the size of the data in the FITS is consistent with the commanded binning.
+- Modify the interpolation method of house-keeping parameters to manage cases in which interpolation fails, avoiding output values such as “NaN” or “Inf”.
+- Add conversion to string for all the keywords of the scientific header that are boolean type.
+- Include the generation of a log file with information on the processing and errors, useful for debugging.
+
+## 1.1 – 2020-04-21
+- Modify the interpolation method of house-keeping parameters to take into account:
+	- the possible lack of a parameter;
+	- the possible presence of an uncalibrated parameter (whose engineering value is flagged with “N/A”);
+	- the fact that the GEN_TIME keyword is provided in UTC rather than OBT.
+- Fix a bug that prevented the correct update of some keywords of the FITS header, in particular those related to sensor temperatures, whose values are interpolated using the input house-keeping parameter table.
+- Add correct computation of the TELAPSE and XPOSURE keywords.
+- Include the EMPTY_PARAMS keyword in the output auxiliary JSON file, containing the list of house-keeping parameters in the input table that are not calibrated but which have been interpolated to correct the value of some of the FITS header keywords.
+- Revise the structure of the binary table containing the house-keeping parameters to make it more user-friendly.
+
+## 1.0 – 2020-03-06
+- Add several optimisations to the code.
+- Add the decode_obt.pro routine.
+
+## 0.0 – 2020-01-16
+Prototype version of the L1 pipeline.
\ No newline at end of file
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