Pyephem next_pass does not match heaven above

Question

I use pyEphem to get the next ISS pass from my location, but the results I return do not match what I see in heaven above using the same coordinates

I'm probably making a stupid mistake, but I can't figure it out

My code below returns the results: Rise Time: 2017/5/25 20:34:39 Azimuth: 193: 28: 04.0

While the nearest heaven above goes almost 3 hours, with a rise time of: 23:09:40

http://www.heavens-above.com/passdetails.aspx?&satid=25544&mjd=57898.9270155034&type=V

from datetime import datetime
import ephem
import pytz

line1 = 'ISS (ZARYA)'      
line2 = '1 25544U 98067A   17145.52800275  .00016717  00000-0  10270-3 0  9015'
line3 = '2 25544  51.6372 151.2656 0005033 192.5139 167.5889 15.53913304 18224'

tle = [line1, line2, line3]
iss = ephem.readtle(tle[0], tle[1], tle[2])

longitude = -6.2282
latitude = 53.2842
altitude = 20

site = ephem.Observer()
site.lat = str(latitude)
site.lon = str(longitude)
site.elevation = 20

current_time = datetime(2017, 5, 25, 12, 0, 0, tzinfo=pytz.utc)
site.date = current_time

info = site.next_pass(iss)
print("Rise time: %s azimuth: %s" % (info[0], info[1]))

Answer 1

Updated answer after editing the question:

, Heavens Above , . , script . , :

TLE ISS script current_time, , . script :

from datetime import datetime
import ephem
import pytz

line1, line2, line3 = """\
ISS (ZARYA)             
1 25544U 98067A   17198.89938657  .00000988  00000-0  22167-4 0  9998
2 25544  51.6416 245.2318 0005849  47.2823 302.7554 15.54170925 66526
""".splitlines()

tle = [line1, line2, line3]
iss = ephem.readtle(tle[0], tle[1], tle[2])

longitude = -6.2282
latitude = 53.2842
altitude = 20

site = ephem.Observer()
site.lat = str(latitude)
site.lon = str(longitude)
site.elevation = 20

current_time = datetime(2017, 7, 21, 1, 0, 0, tzinfo=pytz.utc)
site.date = current_time

info = site.next_pass(iss)
for item in info:
    print(item)

:

2017/7/21 01:32:01
263:02:11.2
2017/7/21 01:37:29
66:12:31.4
2017/7/21 01:42:58
93:15:48.0

, , , UTC + 1 , Heavens Above, 1:37, PyEphem, 2: 37am .

, , , - ?

:

53,2842 ° 6,2282 , , , - . , -53,2842 °, ?