mirror of
https://github.com/cosinekitty/astronomy.git
synced 2026-03-23 08:53:36 -04:00
121 lines
6.2 KiB
Python
Executable File
121 lines
6.2 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
import sys
|
|
import re
|
|
|
|
#--------------------------------------------------------------------------------------
|
|
|
|
def ParseDuration(s):
|
|
if s == '-':
|
|
return 0
|
|
m = re.match(r'(\d+)m', s)
|
|
if m:
|
|
return int(m.group(1))
|
|
raise Exception('Invalid duration string "{}"'.format(s))
|
|
|
|
def ParseMonth(s):
|
|
return 1 + ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'].index(s)
|
|
|
|
def ParseGeo(text, suffixes):
|
|
polarity = +1
|
|
for s in suffixes:
|
|
if text.endswith(s):
|
|
return polarity * float(text[:-1])
|
|
polarity *= -1
|
|
raise Exception('Invalid geographic coordinate "{}"'.format(text))
|
|
|
|
#--------------------------------------------------------------------------------------
|
|
|
|
def FixLunarEclipseData():
|
|
# ' 2022 May 16 04:11 T+ 131 -0.253 2.397 1.419 104m 43m 15.6 15.52 -19.3'
|
|
r = re.compile(r'''^\s{2}
|
|
(\d{4})\s+ # [1] year
|
|
(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+ # [2] month name
|
|
(\d{2})\s+ # [3] day
|
|
(\d{2}):(\d{2})\s+ # [4] hour, [5] minute
|
|
\S+\s+ # (ignore type)
|
|
\d+\s+ # (ignore Saros number)
|
|
\S+\s+ # (ignore gamma)
|
|
\S+\s+ # (ignore pen mag)
|
|
\S+\s+ # (ignore umb mag)
|
|
(\d+m|-)\s+ # [6] semi-duration of partial, minutes
|
|
(\d+m|-)\s+ # [7] semi-duration of total, minutes
|
|
''',
|
|
re.VERBOSE)
|
|
|
|
with open('lunar_eclipse.txt', 'wt') as outfile:
|
|
for fn in ['le1701.html', 'le1801.html', 'le1901.html', 'le2001.html', 'le2101.html']:
|
|
with open(fn, 'rt') as infile:
|
|
for line in infile:
|
|
m = r.match(line)
|
|
if m:
|
|
year = int(m.group(1))
|
|
month = ParseMonth(m.group(2))
|
|
day = int(m.group(3))
|
|
hour = int(m.group(4))
|
|
minute = int(m.group(5))
|
|
partial = ParseDuration(m.group(6))
|
|
total = ParseDuration(m.group(7))
|
|
outfile.write('{:04d}-{:02d}-{:02d}T{:02d}:{:02d}Z {:3d} {:3d}\n'.format(year, month, day, hour, minute, partial, total))
|
|
|
|
return 0
|
|
|
|
#--------------------------------------------------------------------------------------
|
|
|
|
def FixSolarEclipseData():
|
|
# <a href="/web/20080228210550/http://sunearth.gsfc.nasa.gov/eclipse/5MCSEmap/1701-1800/1719-02-19.gif">08835</a>
|
|
# 1719 Feb 19 06:52:57
|
|
# 10 -3474
|
|
# <a href="/web/20080228210550/http://sunearth.gsfc.nasa.gov/eclipse/SEsaros/SEsaros116.html">116</a>
|
|
# A 0.6856 0.9250 30.5N 68.6E 47 163 384 09m01s
|
|
r = re.compile(r'''^
|
|
<a\s+href="[^"]+">(\d+)</a>\s+ # [ 1] eclipse number
|
|
(\d{4})\s+ # [ 2] year
|
|
(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+ # [ 3] month name
|
|
(\d{2})\s+ # [ 4] day
|
|
(\d{2}): # [ 5] hour
|
|
(\d{2}): # [ 6] minute
|
|
(\d{2})\s+ # [ 7] second
|
|
(-?\d+)\s+ # [ 8] Delta T
|
|
\S+\s+ # (ignore lunation number)
|
|
<a\s+href="[^"]+">\d+</a>\s+ # (ignore Saros number)
|
|
([PATH])\S?\s+ # [ 9] eclipse type
|
|
\S+\s+ # (ignore gamma number)
|
|
\S+\s+ # (ignore eclipse mag)
|
|
(\d+\.\d[NS])\s+ # [10] latitude of greatest eclipse
|
|
(\d+\.\d[EW])\s+ # [11] longitude of greatest eclipse
|
|
''',
|
|
re.VERBOSE)
|
|
|
|
prev_eclnum = None
|
|
with open('solar_eclipse.txt', 'wt') as outfile:
|
|
for fn in['se1701.html', 'se1801.html', 'se1901.html', 'se2001.html', 'se2101.html']:
|
|
with open(fn, 'rt') as infile:
|
|
lnum = 0
|
|
for line in infile:
|
|
lnum += 1
|
|
m = r.match(line)
|
|
if m:
|
|
#print(line, end='')
|
|
eclnum = int(m.group(1))
|
|
if (prev_eclnum is not None) and (prev_eclnum + 1 != eclnum):
|
|
print('norm.py FATAL(FixSolarEclipseData): Unexpected eclipse number {} (prev = {}) at {} line {}'.format(eclnum, prev_eclnum, fn, lnum))
|
|
return 1
|
|
prev_eclnum = eclnum
|
|
year = int(m.group(2))
|
|
month = ParseMonth(m.group(3))
|
|
day = int(m.group(4))
|
|
hour = int(m.group(5))
|
|
minute = int(m.group(6))
|
|
second = int(m.group(7))
|
|
delta_t = int(m.group(8))
|
|
ecltype = m.group(9)
|
|
lat = ParseGeo(m.group(10), 'NS')
|
|
lon = ParseGeo(m.group(11), 'EW')
|
|
outfile.write('{:04d}-{:02d}-{:02d}T{:02d}:{:02d}:{:02d}Z {:4d} {:1s} {:7.1f} {:7.1f}\n'.format(year, month, day, hour, minute, second, delta_t, ecltype, lat, lon))
|
|
return 0
|
|
|
|
#--------------------------------------------------------------------------------------
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(FixLunarEclipseData() or FixSolarEclipseData())
|