Split server and prediction files

1 files changed, 23 insertions, 0 deletions

diff --git a/iss/predictions.py b/iss/predictions.py
new file mode 100644
index 0000000..fa4aeff
--- /dev/null
+++ b/iss/predictions.py
@@ -0,0 +1,23 @@
+from skyfield.api import Topos, load
+
+TEL_AVIV = Topos('32.0853 N', '34.7817 E')
+ISS = "ISS (ZARYA)"
+
+def init_stations():
+    stations_url = 'http://celestrak.com/NORAD/elements/stations.txt'
+    return load.tle_file(stations_url)
+
+def get_predictions(location=TEL_AVIV, satellite_name=ISS):
+    satellites = init_stations()
+    by_name = {sat.name: sat for sat in satellites}
+    satellite = by_name[satellite_name]
+
+    ts = load.timescale()
+    t0 = ts.now()
+    t1 = ts.utc(2020, 9, 30)
+
+    t, events = satellite.find_events(location, t0, t1, altitude_degrees=60.0)
+    for ti, event in zip(t, events):
+        name = ('rise above 30°', 'culminate', 'set below 30°')[event]
+        print(ti)
+        print(ti.utc_strftime('%Y %b %d %H:%M:%S'), name)