solveChallenge.py

from skyfield.api import Topos, load
import socket
from time import sleep
import re
import array as arr

#connecting to server 
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('where.satellitesabove.me', 5021))
print("connecting to where.satellitesabove.me:5021")
sleep(0.1)
print(s.recv(1024).decode())
ticket="ticket{yankee2425golf:GG2riBRYfMfQM3W4fDz9ZUhdJ9C7YHwx4jSvhXgMrRh47AWIwve0R0SKLAmMkKG7Fg}\n"
s.send(ticket.encode())
print(s.recv(3048).decode())

#loading stations
stations_url = 'stations.txt'
satellites = load.tle_file(stations_url)

ts = load.timescale()
#always the same satellite
satellite = satellites[5]
buff = 10000

#doing the work
while True: 
    while True:
        sleep(0.1)
        input = s.recv(buff).decode()
        #if we receive the flag as response
        if 'flag' in input:
            print(input)
            exit()
        if 'What is the X coordinate at the time of:' in input:
            time = re.search(r'\((.*?)\)',input).group(1)
            array = [float(x) for x in time.split(",")]
            t = ts.utc(array[0], array[1], array[2], array[3], array[4], array[5])
            geocentric = satellite.at(t)
            x = geocentric.position.km[0]
            print(f'Sending {x}')
            s.send((str(x)+"\n").encode())
            #print(s.recv(1024).decode())
            break 
        if 'What is the Y coordinate at the time of:' in input: 
            time = re.search(r'\((.*?)\)',input).group(1)
            array = [float(x) for x in time.split(",")]
            t = ts.utc(array[0], array[1], array[2], array[3], array[4], array[5])
            geocentric = satellite.at(t)
            x = geocentric.position.km[1]
            print(f'Sending {x}')
            s.send((str(x)+"\n").encode())
            #print(s.recv(1024).decode())
            break 
        if 'What is the Z coordinate at the time of:' in input: 
            time = re.search(r'\((.*?)\)',input).group(1)
            array = [float(x) for x in time.split(",")]
            t = ts.utc(array[0], array[1], array[2], array[3], array[4], array[5])
            geocentric = satellite.at(t)
            x = geocentric.position.km[2]
            print(f'Sending {x}')
            s.send((str(x)+"\n").encode())
            #print(s.recv(1024).decode())
            break