Merge branch 'bs_stage_2_tag' into 'master'

Tag locklosses that occur while SEI_BS is transitioning

Closes #149

See merge request !92

locklost/config.py

@@ -66,6 +66,7 @@ TAG_COLORS = {
     'WINDY': ('springgreen', 'mediumblue'),
     'SEISMIC': ('orange', 'black'),
     'ADS_EXCURSION': ('mediumvioletred', 'plum'),
+    'SEI_BS_TRANS': ('sienna', 'orange'),
 }
 
 ##################################################

locklost/plugins/__init__.py

@@ -61,6 +61,9 @@ register_plugin(check_wind)
 from .ads_excursion import check_ads
 register_plugin(check_ads)
 
+from .sei_bs_trans import check_sei_bs
+register_plugin(check_sei_bs)
+
 # add last since this needs to wait for additional data
 from .seismic import check_seismic
 register_plugin(check_seismic)

locklost/plugins/sei_bs_trans.py

+import logging
+
+from gwpy.segments import Segment
+
+from .. import config
+from .. import data
+
+WINDOW = [-3, 0]
+CHANNEL = ['{}:GRD-SEI_BS_STATE_N'.format(config.IFO)]
+
+##############################################
+
+def check_sei_bs(event):
+    """Checks if SEI_BS Guardian node is in transition state during lockloss and
+    creates a tag."""
+
+    if config.IFO == 'L1':
+        logging.info("followup is not configured or not applicable to LLO.")
+        return
+
+    mod_window = [WINDOW[0], WINDOW[1]]
+    segment = Segment(mod_window).shift(int(event.gps))
+    stage_2_channel = data.fetch(CHANNEL, segment)[0]
+
+    if any(stage_2_channel.data == -19):
+        event.add_tag('SEI_BS_TRANS')
+    else:
+        logging.info('SEI BS was not transitioning during lockloss')