class SurveyQuery(object):
def __init__(self):
self.ims = ImagesQuery()
self.bk = BlockQuery()
# pixel scale is symmetric, 0.1850 arcsec/pixel. Dectector is [1:23219,1:19354] pixels.
self.field_area = ((0.184 * 23219) / 3600.) * (
(0.184 * 19354) / 3600.) # sq. deg
def fields_observed(self):
fields = self.ims.what_fields_have_any_observations()
# don't include the wallpaper in the overall count
tno_fields = [f for f in fields if not f['fieldId'].__contains__('WP')]
num_fields = len(tno_fields)
sqdeg_observed = num_fields * self.field_area
retval = (sqdeg_observed, num_fields)
return retval
def fields_processed(self):
retval = 3 * 21 * self.field_area # 3 blocks processed at 04-02-2015
return retval
def most_recent_observation(self):
it = self.ims.images
ss = sa.select([it.c.obs_end], order_by=it.c.obs_end)
dates = [n[0] for n in self.ims.conn.execute(ss)]
return dates[-1]
def next_moondark(self): # this is producing an off by one error: fix!
mn = ephem.Moon()
mp = []
for n in range(0, 29 * 4):
mn.compute(ephem.now() + (n / 4.))
mp.append((ephem.now() + (n / 4.), mn.moon_phase))
next_new_moon = ephem.Date(min(mp, key=lambda x: x[1])[0]).datetime()
# next_new_moon = pytz.utc.localize(next_new_moon) # it's calculated in UTC
# hst = pytz.timezone('HST')
retval = next_new_moon # .astimezone(hst)
return retval
def next_observing_window(self):
# we observe if the near-new moon is down, or if the moon is up
# but we are within 3 days of new moon.
next_nm = self.next_moondark()
next_period = (next_nm - datetime.timedelta(3),
next_nm + datetime.timedelta(3))
if next_period[0] < datetime.datetime.now() < next_period[1]:
retval = 'tonight (hopefully).'
else:
retval = 'in no more than ' + str(
(next_period[0] - datetime.datetime.now()).days) + ' days.'
return retval
def megacam_schedule(self):
# tuples bracket the ends of date ranges that MegaCam is on the telescope
schedule = [
(datetime.datetime(2015, 7, 8), datetime.datetime(2015, 7, 21)),
]
return schedule
def nearest_megacam_run(self):
now = datetime.datetime.now()
schedule = self.megacam_schedule()
nearest_run = []
for run in schedule:
if (run[0] - now > datetime.timedelta(0)) or (
run[1] - now > datetime.timedelta(0)):
nearest_run = run
break
if nearest_run[0] <= now <= nearest_run[1]:
retval = 'now.'
else:
if (nearest_run[0] - now).days > 0:
retval = "in " + str((nearest_run[0] - now).days) + " days."
else:
hrs = (nearest_run[0] - now).seconds / 3600.
retval = "in " + '%2.1f' % hrs + " hours."
return retval
def num_discoveries(self):
# Characterized discoveries only.
status = self.bk.all_blocks()['status']
return sum([
int(n[1]) for n in list(status.values())
if (n is not None and n[1].isdigit())
])
def mpc_informed(self):
# status = self.bk.all_blocks()['blocks']
# Implement more comprehensive info later
# return sum([n[1] for n in status.values() if n[1].isdigit()])
return 0
class SurveyQuery(object):
def __init__(self):
self.ims = ImagesQuery()
self.bk = BlockQuery()
# pixel scale is symmetric, 0.1850 arcsec/pixel. Dectector is [1:23219,1:19354] pixels.
self.field_area = ((0.184 * 23219) / 3600.) * ((0.184 * 19354) / 3600.) # sq. deg
def fields_observed(self):
fields = self.ims.what_fields_have_any_observations()
# don't include the wallpaper in the overall count
tno_fields = [f for f in fields if not f['fieldId'].__contains__('WP')]
num_fields = len(tno_fields)
sqdeg_observed = num_fields * self.field_area
retval = (sqdeg_observed, num_fields)
return retval
def fields_processed(self):
retval = 3 * 21 * self.field_area # 3 blocks processed at 04-02-2015
return retval
def most_recent_observation(self):
it = self.ims.images
ss = sa.select([it.c.obs_end], order_by=it.c.obs_end)
dates = [n[0] for n in self.ims.conn.execute(ss)]
return dates[-1]
def next_moondark(self): # this is producing an off by one error: fix!
mn = ephem.Moon()
mp = []
for n in range(0, 29 * 4):
mn.compute(ephem.now() + (n / 4.))
mp.append((ephem.now() + (n / 4.), mn.moon_phase))
next_new_moon = ephem.Date(min(mp, key=lambda x: x[1])[0]).datetime()
# next_new_moon = pytz.utc.localize(next_new_moon) # it's calculated in UTC
# hst = pytz.timezone('HST')
retval = next_new_moon # .astimezone(hst)
return retval
def next_observing_window(self):
# we observe if the near-new moon is down, or if the moon is up
# but we are within 3 days of new moon.
next_nm = self.next_moondark()
next_period = (next_nm - datetime.timedelta(3), next_nm + datetime.timedelta(3))
if next_period[0] < datetime.datetime.now() < next_period[1]:
retval = 'tonight (hopefully).'
else:
retval = 'in no more than ' + str((next_period[0] - datetime.datetime.now()).days) + ' days.'
return retval
def megacam_schedule(self):
# tuples bracket the ends of date ranges that MegaCam is on the telescope
schedule = [(datetime.datetime(2015, 7, 8), datetime.datetime(2015, 7, 21)),
]
return schedule
def nearest_megacam_run(self):
now = datetime.datetime.now()
schedule = self.megacam_schedule()
nearest_run = []
for run in schedule:
if (run[0] - now > datetime.timedelta(0)) or (run[1] - now > datetime.timedelta(0)):
nearest_run = run
break
if nearest_run[0] <= now <= nearest_run[1]:
retval = 'now.'
else:
if (nearest_run[0] - now).days > 0:
retval = "in " + str((nearest_run[0] - now).days) + " days."
else:
hrs = (nearest_run[0] - now).seconds / 3600.
retval = "in " + '%2.1f' % hrs + " hours."
return retval
def num_discoveries(self):
# Characterized discoveries only.
status = self.bk.all_blocks()['status']
return sum([int(n[1]) for n in status.values() if (n is not None and n[1].isdigit())])
def mpc_informed(self):
# status = self.bk.all_blocks()['blocks']
# Implement more comprehensive info later
# return sum([n[1] for n in status.values() if n[1].isdigit()])
return 0