Coverage for python/lsst/obs/lsst/translators/comCam.py : 32%

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1# This file is currently part of obs_lsst but is written to allow it
2# to be migrated to the astro_metadata_translator package at a later date.
3#
4# This product includes software developed by the LSST Project
5# (http://www.lsst.org).
6# See the LICENSE file in this directory for details of code ownership.
7#
8# Use of this source code is governed by a 3-clause BSD-style
9# license that can be found in the LICENSE file.
11"""Metadata translation code for the LSST Commissioning Camera"""
13__all__ = ("LsstComCamTranslator", )
15import logging
17from .lsstCam import LsstCamTranslator
19log = logging.getLogger(__name__)
21DETECTOR_SERIALS = {
22 "S00": "ITL-3800C-229",
23 "S01": "ITL-3800C-251",
24 "S02": "ITL-3800C-215",
25 "S10": "ITL-3800C-326",
26 "S11": "ITL-3800C-283",
27 "S12": "ITL-3800C-243",
28 "S20": "ITL-3800C-319",
29 "S21": "ITL-3800C-209",
30 "S22": "ITL-3800C-206",
31}
34class LsstComCamTranslator(LsstCamTranslator):
35 """Metadata translation for the LSST Commissioning Camera."""
37 name = "LSSTComCam"
38 """Name of this translation class"""
40 _const_map = {
41 "instrument": "LSST-ComCam",
42 }
44 # Use the comCam raft definition
45 cameraPolicyFile = "policy/comCam.yaml"
47 @classmethod
48 def can_translate(cls, header, filename=None):
49 """Indicate whether this translation class can translate the
50 supplied header.
52 Looks for "COMCAM" instrument in case-insensitive manner but
53 must be on LSST telescope. This avoids confusion with other
54 telescopes using commissioning cameras.
56 Parameters
57 ----------
58 header : `dict`-like
59 Header to convert to standardized form.
60 filename : `str`, optional
61 Name of file being translated.
63 Returns
64 -------
65 can : `bool`
66 `True` if the header is recognized by this class. `False`
67 otherwise.
68 """
69 if "INSTRUME" in header and "TELESCOP" in header:
70 telescope = header["TELESCOP"]
71 instrument = header["INSTRUME"].lower()
72 if instrument == "comcam" and telescope == "LSST":
73 return True
74 telcode = header.get("TELCODE", None)
75 # Some lab data reports that it is LSST_CAMERA
76 if telcode == "CC" and telescope == "LSST":
77 return True
79 return False
81 @classmethod
82 def fix_header(cls, header):
83 """Fix ComCam headers.
85 Notes
86 -----
87 Fixes the following issues:
89 * If LSST_NUM is missing it is filled in by looking at the CCDSLOT
90 value and assuming that the ComCam detectors are fixed.
92 Corrections are reported as debug level log messages.
93 """
94 modified = False
96 obsid = header.get("OBSID", "unknown")
98 if "LSST_NUM" not in header:
99 slot = header.get("CCDSLOT", None)
100 if slot in DETECTOR_SERIALS:
101 header["LSST_NUM"] = DETECTOR_SERIALS[slot]
102 modified = True
103 log.debug("%s: Set LSST_NUM to %s", obsid, header["LSST_NUM"])
105 return modified