satellite_track.py and site source code for https://cagriari.com/satellite/

README

needs;
rtl_fm
sox
wxtoimg (https://wxtoimgrestored.xyz/beta/wxtoimg-armhf-2.11.2-beta.deb)
wxmap on your server for map generation (https://wxtoimgrestored.xyz/beta/wxtoimg-amd64-2.11.2-beta.deb)
(because wxmap on ARM is not working, at least for me)
python3
requests
noaa-apt
n2yo account and api key


good luck!

getmap.php

<?php
$start = $_GET['start'];
$sat = $_GET['satellite'];
if($_GET['key'] === "-YOUR_SITE_API-"){
	exec('wxmap -d -L "lat/lon/alt" -T '.escapeshellarg($sat).' -G "/home/admin/" -H noaa.txt -p 0 -l 0 -o '.escapeshellarg($start).' map.png');
}

noaa.txt

NOAA 1 [-]              
1 04793U 70106A   19186.83652485 -.00000022  00000-0  14426-3 0  9998
2 04793 101.7027 255.1690 0031345 252.3894 223.9880 12.53990221223003
NOAA 2 (ITOS-D) [-]     
1 06235U 72082A   19186.86129802 -.00000022  00000-0  14387-3 0  9997
2 06235 101.7958 153.2285 0004074 349.5395  64.3003 12.53115836137213
NOAA 3 [-]              
1 06920U 73086A   19186.89672538 -.00000043  00000-0  13710-4 0  9998
2 06920 102.0508 155.8552 0006769 118.7750 296.1565 12.40341148 67198
NOAA 4 [-]              
1 07529U 74089A   19186.93492197  .00000001  00000-0  29016-3 0  9992
2 07529 101.7532 154.4295 0009106  15.6726  51.3029 12.53131133 41577
NOAA 5 [-]              
1 09057U 76077A   19186.92099119 -.00000073  00000-0 -22072-3 0  9991
2 09057 101.9325 157.6708 0009889 337.7675  83.3594 12.37751272940417
TIROS N [P]             
1 11060U 78096A   19186.74405213 -.00000003  00000-0  20172-4 0  9999
2 11060  98.7892 243.9234 0010543   5.7096 354.4197 14.18237141319086
NOAA 6 [P]              
1 11416U 79057A   19186.93092737  .00000012  00000-0  20404-4 0  9993
2 11416  98.6375 181.0166 0010013 190.7155 169.3817 14.33535622 87137
NOAA 7 [-]              
1 12553U 81059A   19186.93909711 -.00000024  00000-0  11241-4 0  9993
2 12553  99.0956 194.6802 0010536 296.4570 121.4102 14.17260357965168
NOAA 8 [-]              
1 13923U 83022A   19186.90926036 -.00000016  00000-0  10844-4 0  9992
2 13923  98.5823 171.9623 0016187 122.7312 237.5432 14.28676211888542
NOAA 9 [P]              
1 15427U 84123A   19186.89677116  .00000001  00000-0  23183-4 0  9999
2 15427  98.8931 135.8122 0014725 350.4991  78.1841 14.16071127784100
NOAA 10 [-]             
1 16969U 86073A   19186.89783486 -.00000017  00000-0  10264-4 0  9999
2 16969  98.4788 182.9511 0011121 232.1120 187.2689 14.28073730707034
NOAA 11 [-]             
1 19531U 88089A   19186.69290295 -.00000005  00000-0  18448-4 0  9994
2 19531  98.4464 220.0686 0012066  50.1285 310.0949 14.15242613588620
NOAA 12 [-]             
1 21263U 91032A   19186.89861611 -.00000028  00000-0  62875-5 0  9998
2 21263  98.5157 201.7916 0012502 251.1713 108.8112 14.25895002463164
NOAA 13 [-]             
1 22739U 93050A   19186.66812116 -.00000035  00000-0  32904-5 0  9998
2 22739  98.4707 208.5309 0009399 185.0017 175.1064 14.12732274335119
NOAA 14 [-]             
1 23455U 94089A   19186.83923658 -.00000029  00000-0  68708-5 0  9994
2 23455  98.5953 247.4504 0009662 169.3727 190.7652 14.14131701264403
NOAA 15 [B]             
1 25338U 98030A   19186.88872122  .00000057  00000-0  42767-4 0  9996
2 25338  98.7457 208.1240 0010285 186.6668 173.4376 14.25919016 99442
NOAA 16 [-]             
1 26536U 00055A   19186.85860028 -.00000004  00000-0  20888-4 0  9999
2 26536  98.7747 258.4619 0010433   2.0707 358.0507 14.13231610265146
NOAA 17 [-]             
1 27453U 02032A   19186.89200227 -.00000014  00000-0  12335-4 0  9997
2 27453  98.5379 136.8707 0011875 165.6642 194.4877 14.25042755885385
NOAA 18 [B]             
1 28654U 05018A   19186.92089028  .00000084  00000-0  70369-4 0  9993
2 28654  99.0945 234.1480 0015235 127.2188 233.0376 14.12435708727858
NOAA 19 [+]             
1 33591U 09005A   19186.90386995  .00000078  00000-0  67806-4 0  9995
2 33591  99.1800 178.4439 0013501 334.4381  25.6121 14.12362708536074
SUOMI NPP [+]           
1 37849U 11061A   19186.90962545 -.00000004  00000-0  18862-4 0  9999
2 37849  98.7364 124.8692 0001184 107.8070 292.3700 14.19544228398327
NOAA 20 [+]             
1 43013U 17073A   19186.86626273 -.00000002  00000-0  19687-4 0  9992
2 43013  98.7209 124.7630 0000809  98.4194 261.7074 14.19558109 84342

satellite_track.py

import requests, json, time, threading, subprocess, traceback, os, sys
from datetime import datetime

passes = []
satellites = [("28654","NOAA_18", "137.9125M"), ("33591", "NOAA_19", "137.100M"), ("25338","NOAA_15","137.620M")]

def satellite_update():
    global passes
    while True:
        tmppasses = []
        try:
            for satellite_info in satellites:
                resp = json.loads(requests.get("https://www.n2yo.com/rest/v1/satellite/radiopasses/"+satellite_info[0]+"/lat/lon/altitude/days/min_elevation/&apiKey=-N2YO_API_KEY-").text) #min.elevation mine is 40
                for sat_pass in resp['passes']:
                    if sat_pass['maxEl'] > 25:
                        print(sat_pass, flush=True)
                        
                        tmppasses.append((sat_pass['startUTC'], sat_pass['endUTC'], satellite_info))
        except:
            traceback.print_exc()
            time.sleep(10)
            continue
        passes = tmppasses[:]
        nextpass = int(sorted(passes[:], key=lambda d: 2147483647 if d[1] < time.time() else d[0])[0][0]) # fix until 2038
        try:
            requests.get("https://cagriari.com/satellite/nextpass.php?key=-YOUR_SITE_API-&nextpass="+str(nextpass))
        except:
            traceback.print_exc()
            time.sleep(10)
            continue
        print("Next pass: " + datetime.utcfromtimestamp(nextpass).strftime('%Y-%m-%d %H:%M:%S') + " UTC", flush=True)
        
        time.sleep(60*60*6)

threading.Thread(target=satellite_update).start()

while True:
    for sat_pass in passes:
        try:
            curtime = int(time.time())
            if curtime > sat_pass[0] and curtime < sat_pass[1]:
                sat_name = sat_pass[2][1]
                print("Recording...", flush=True)
                
                p = subprocess.Popen("rtl_fm -d 0 -f "+sat_pass[2][2]+" -s 48000 -g 44 -p 52 -F 9 -A fast -E DC - | sox -t raw -r 48000 -es -b16 -c1 -V1 - "+str(curtime)+"-"+sat_name+".wav rate 11025", shell=True)
                time.sleep(int(sat_pass[1] - sat_pass[0]))
                os.system("killall rtl_fm")
                os.system("killall sox")
                time.sleep(5)
                print("Recording done, receiving map from server", flush=True)
                requests.get("https://cagriari.com/satellite/getmap.php?satellite="+sat_name.replace('_',' ')+"&start="+str(curtime)+"&key=-YOUR_SITE_API-")
                open('map.png', 'wb').write(requests.get("https://cagriari.com/satellite/map.png?t="+str(curtime)).content)
                p = subprocess.Popen(["noaa-apt", str(curtime)+"-"+sat_name+".wav", "-o", str(curtime)+"-"+sat_name+".png"])
                p.wait()
                files = {'file': open(str(curtime)+"-"+sat_name+".png",'rb')}
                requests.post("https://cagriari.com/satellite/upload.php?apikey=-YOUR_SITE_API-", files=files)
                print("Uploaded")
                print("Decoding with wxtoimg", flush=True)
                
                p = subprocess.Popen(["wxtoimg","-n","-m","map.png","-t","n","-o","-g","1.6","-e","MSA",str(curtime)+"-"+sat_name+".wav",str(curtime)+"-"+sat_name+".wx.msa.png"])
                p.wait()
                print("Decoded, uploading", flush=True)
                
                files = {'file': open(str(curtime)+"-"+sat_name+".wx.msa.png",'rb')}
                requests.post("https://cagriari.com/satellite/upload.php?apikey=-YOUR_SITE_API-", files=files)
                print("Uploaded")
                print("Pass ended\n\n\n\n\n",flush=True)
                passesx = passes[:]
                nextpass = int(sorted(passesx, key=lambda d: 2147483647 if d[1] < time.time() else d[0])[0][0]) # fix until 2038
                try:
                    requests.get("https://cagriari.com/satellite/nextpass.php?key=-YOUR_SITE_API-&nextpass="+str(nextpass))
                except:
                    traceback.print_exc()
                    time.sleep(10)
                    continue
                print("Next pass: " + datetime.utcfromtimestamp(nextpass).strftime('%Y-%m-%d %H:%M:%S') + " UTC", flush=True)
                
        except:
            traceback.print_exc()
            

    time.sleep(1)

upload.php

<?php
if($_GET['apikey'] == "-YOUR_SITE_API-"){
	$check = getimagesize($_FILES["file"]["tmp_name"]);
	if($check !== false) {
     		move_uploaded_file($_FILES["file"]["tmp_name"], "images/".basename($_FILES["file"]["name"]));
                $img = imagecreatefrompng("images/".basename($_FILES["file"]["name"]));
                $xy = getimagesize("images/".basename($_FILES["file"]["name"]));
                $imgresize = imagescale($img, ($xy[0] / $xy[1]) * 400, 400);
                imagepng($imgresize, "images/".basename($_FILES["file"]["name"]).".resize.png");
	}
}