meas_dict = {'hot OM2 1':{
                    'no sqz':{  #'gps start':1372017274, old xcorr start time, incl. 1 big glitch
                        'gps start':1372017957, #this is new time w/o glitch 
                        'gps stop' :1372021147,
                    },
                    'FDS':{
                        'gps start':1372042818, #
                        'gps stop' :1372046418,
                    }},
             'cold OM2':{
                    'no sqz':{  
                        #no-sqz w/o glitch, https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=71849
                        'gps start':1373371323, 
                        'gps stop' :1373372668, 
                    },
                    'FDS':{
                        'gps start':1373322138, #
                        'gps stop' :1373322738,
                    }},
             'warm OM2':{
                    'no sqz':{
                        'gps start':1373812338, #
                        'gps stop' :1373812938,
                    },
                    'FDS':{
                        'gps start':1373813118, #
                        'gps stop' :1373814018,
                    }},
             'hot OM2 2':{
                    'no sqz':{
                        'gps start':1373839430, #
                        'gps stop' :1373840398,
                    },
                    'FDS':{
                        'gps start':1373843778, #
                        'gps stop' :1373844498,
                    }},
             'hot OM2 3':{
                    'no sqz':{
                        'gps start':1374004600, # 71591
                        'gps stop' :1374005215,
                    },
                    'FDS':{
                        'gps start':1373984483, #
                        'gps stop' :1373985483,
                    }},
             'cold OM2 4':{   
             # disaster sqz night @ https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=72796
                     'no sqz': {
                         'gps start': 1378445718, 
                         'gps stop' : 1378446918
                     },
                     'FDS': {
                         'gps start': 1378440000,
                         'gps stop' : 1378441800
                     }},
             'hot OM2 4':{ 
             # apparently OM2 got cold sometime https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=72967
             # these hot sqz/no-sqz times are from 9/21 when ham7 isi tripped for several hours, https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=73020
                     'no sqz': {
                         'gps start': 1379340154,
                         'gps stop' : 1379345854
                     },
                     'FDS': {
                         'gps start': 1379324600,
                         'gps stop' : 1379328200
                     }},
            }