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main.py
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main.py
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# main.py
#
# This script utilizes the functions in the other files to calculate
# ephemerides for Starlink, determine which are visible, and create
# an ACP observing plan for the Pomenis telescope
#
# Harry Krantz
# Steward Observatory
# University of Arizona
# Copyright May 2020
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import datetime as dt
import os
from starlinkPassPredictor import *
from locations import locations
from writeAcpPlan import *
from skyfield import api
from skyfield import almanac
##########################
# Parameters
##########################
exposureTime = 3
exposureRepeat = 1
filterLetter = "v"
binning = 1
offset = 9 #offset the requested time to allow for slewing etc. 6 sec for starting at center of FOV. increase to trigger sooner
timePer = dt.timedelta(seconds=90) #minimum number of sec to wait before next target
minAlt = 20
sunUp = False
moonUp = None #any
eclipsed = False
params = [sunUp, moonUp, eclipsed, minAlt]
start = dt.datetime.utcnow().replace(hour=0, minute=00, second=00)
stop = dt.datetime.utcnow().replace(hour=4, minute=00, second=00)
#start = dt.datetime(2020,5,28,0,00,00)
#stop = dt.datetime(2020,5,28,5,00,00)
loc = locations["Lemmon"]
#imagePath = "F:\\++__2020.5__++\\Sats\\%s_Starlink" % (start.strftime('%Y-%m-%d'))
imagePath = "%s_Starlink" % (start.strftime('%Y-%m-%d'))
#staticPath = "C:\\Users\\Pomenis\\Documents\\ACP Astronomy\\Plans"
staticPath = imagePath
###########################
#Make a new directory for todays data
#path = start.strftime('%Y-%m-%d')
path = imagePath
if os.path.isdir(path):
print("%s already exists, opening it..." % path)
else:
try:
os.mkdir(path)
except OSError:
print ("Creation of the directory %s failed" % path)
else:
print ("Successfully created the directory %s " % path)
###########################
ts = api.load.timescale()
e = api.load('de421.bsp')
### Evening ###
print("\n\n ### EVENING ### \n\n")
#Determine when is sunset and twilight
t, y = almanac.find_discrete(ts.utc(start.replace(tzinfo=api.utc)), ts.utc(stop.replace(tzinfo=api.utc)), almanac.dark_twilight_day(e, loc))
for ti, yi in zip(t,y):
if yi == 3:
sunset = ti
if yi == 1:
twilight = ti
twilight = twilight.utc_datetime()
print("Astronomical Twilght is " + twilight.strftime('%Y-%m-%d %H:%M:%S') )
###########################
#Find all passes
passes = starlinkPassPredictor(twilight, stop, loc, params, path, "allPassesEvening_" + start.strftime('%Y-%m-%d'))
#Select some to observe
passes = selectStarlinkPasses(passes, timePer, path, "selectedPassesEvening_" + start.strftime('%Y-%m-%d'))
###########################
#Make an ACP plan
filename = "starlinkPlanEvening.txt"
print("Writing ACP Plan as " + filename)
#Reorganize for ACP plan
obs = []
for p in passes:
obs.append([p["name"],p["maxTime"],offset,p["maxRA"],p["maxDec"],p["maxAlt"],p["maxAz"]])
#Write ACP plan for Pomenis
writeAcpPlan(obs, exposureTime, exposureRepeat, filterLetter, binning, imagePath, os.path.join(path, filename), False)
writeAcpPlan(obs, exposureTime, exposureRepeat, filterLetter, binning, imagePath, os.path.join(staticPath, filename), False)
### Morning ###
print("\n\n ### MORNING ### \n\n")
start = dt.datetime.utcnow().replace(hour=9, minute=00, second=00)
stop = dt.datetime.utcnow().replace(hour=15, minute=00, second=00)
#start = dt.datetime(2020,5,28,9,00,00)
#stop = dt.datetime(2020,5,28,15,00,00)
#Determine when is sunset and twilight
t, y = almanac.find_discrete(ts.utc(start.replace(tzinfo=api.utc)), ts.utc(stop.replace(tzinfo=api.utc)), almanac.dark_twilight_day(e, loc))
for ti, yi in zip(t,y):
if yi == 3:
sunset = ti
if yi == 1:
twilight = ti
twilight = twilight.utc_datetime()
print("Astronomical Twilght is " + twilight.strftime('%Y-%m-%d %H:%M:%S') )
###########################
#Find all passes
passes = starlinkPassPredictor(start, twilight, loc, params, path, "allPassesMorning_" + start.strftime('%Y-%m-%d'))
#Select some to observe
passes = selectStarlinkPasses(passes, timePer, path, "selectedPassesMorning_" + start.strftime('%Y-%m-%d'))
###########################
#Make an ACP plan
filename = "starlinkPlanMorning.txt"
print("Writing ACP Plan as " + filename)
#Reorganize for ACP plan
obs = []
for p in passes:
obs.append([p["name"],p["maxTime"],offset,p["maxRA"],p["maxDec"],p["maxAlt"],p["maxAz"]])
#Write ACP plan for Pomenis
writeAcpPlan(obs, exposureTime, exposureRepeat, filterLetter, binning, imagePath, os.path.join(path, filename), True)
writeAcpPlan(obs, exposureTime, exposureRepeat, filterLetter, binning, imagePath, os.path.join(staticPath, filename), True)
###########################
print("Done!")