pray-calc-ml/data/processed/isha_angles.csv
Aric Camarata c1eeef53c4 Expand dataset to 5,871 Fajr / 46 Isha across 114 locations
Major additions:
- Extract all 1,621 Basthoni 2022 SQM records (46 Indonesian sites,
  Lampiran 2-5) via precomputed_angles.py
- Add 9 new raw sighting CSVs: Abdel-Hadi Malaysia, BRIN multistation,
  Kassim Bahali (2017+2019), Khalifa Saudi, Moonsighting.com,
  Shaukat 2015 Blackburn UK, Walisongo Sulawesi
- Curate aggregate D0 database (115 entries) in research/

Pipeline improvements:
- Open-Topo-Data SRTM30m primary elevation API with fallback
- APPROVED_RAW_CSVS allowlist prevents circular data ingestion
- Pre-computed angle merge path (bypasses back-calculation for SQM data)
- BAD_NOTE_MARKERS quality filter for excluded sources

Collection tools:
- BRIN multistation SQM processors
- PDF/HTML table extractor for academic papers
- Source tracking database (collection_manifest.json)

Documentation:
- Rewrite .wiki/Data.md and .wiki/Research.md from scratch
- Expand Data-Sources.md with full Basthoni Lampiran breakdown
- Add 14 researcher outreach drafts
- Update .gitignore to exclude bulk/experimental files
2026-02-28 10:51:01 -05:00

9.3 KiB

1dateutc_dtlatlngelevation_mday_of_yearisha_anglesourcenotes
22007-06-222007-06-22 11:47:00+00:005.933116.055.017317.787197419567423Niri & Zainuddin, Isha prayer time determination, Tanjung Aru SabahSQM-LE; Shafaq Abyad; summer at near-equatorial site
32007-09-232007-09-23 11:20:00+00:005.933116.055.026617.83225788506929Niri & Zainuddin, Isha prayer time determination, Tanjung Aru SabahSQM-LE; Shafaq Abyad; autumn equinox
42007-12-222007-12-22 11:22:00+00:005.933116.055.035617.890311077919815Niri & Zainuddin, Isha prayer time determination, Tanjung Aru SabahSQM-LE; Shafaq Abyad; winter season
52015-01-152015-01-15 15:52:00+00:0027.5241.71020.01515.807111918802388Khalifa 2018, NRIAG J. 7:22-28, Hail Saudi ArabiaShafaq Abyad winter; Hail
62015-03-202015-03-20 16:12:00+00:0027.5241.71020.07911.406862437538283Khalifa 2018, NRIAG J. 7:22-28, Hail Saudi ArabiaShafaq Abyad spring equinox; Hail
72015-06-212015-06-21 17:28:00+00:0027.5241.71020.017215.218935301068617Khalifa 2018, NRIAG J. 7:22-28, Hail Saudi ArabiaShafaq Abyad summer solstice; high altitude desert
82014-11-152014-11-15 16:18:00+00:0027.5241.71020.031925.811827873517203Khalifa 2018, NRIAG J. 7:22-28, Hail Saudi ArabiaShafaq Abyad; desert plateau ~1000m elevation
92009-05-192009-05-20 02:15:00+00:0042.1-86.48190.014011.632978411332495Tayebi via Shaukat 2015 booklet, St. Joseph MI USAnaked eye; Shafaq Ahmer (red) disappearance; Maghrib at 21:05 EDT; only Red Shafaq recorded
102016-03-202016-03-20 20:15:00+00:0051.15-3.65430.08017.086172416366704Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor UKShafaq Abyad spring equinox
112014-09-152014-09-15 20:18:00+00:0051.15-3.65430.025817.128632287342086Asim Yusuf 'Shedding Light on the Dawn' (2017), ExmoorShafaq Abyad (white dusk twilight) disappearance
122015-09-212015-09-21 20:22:00+00:0051.15-3.65430.026419.822224962016044Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor UKShafaq Abyad autumn equinox
132013-09-222013-09-22 20:20:00+00:0051.15-3.65430.026520.097560132743013Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor UKShafaq Abyad autumn equinox; multi-observer
142014-12-152014-12-15 17:42:00+00:0051.15-3.65430.034913.778905174013673Asim Yusuf 'Shedding Light on the Dawn' (2017), ExmoorShafaq Abyad winter
152015-12-212015-12-21 17:38:00+00:0051.15-3.65430.035512.890311223373352Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor UKShafaq Abyad winter solstice
161988-01-071988-01-07 17:43:00+00:0053.75-2.483120.0713.231883007350167Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 17:11
171988-01-241988-01-24 18:05:00+00:0053.75-2.483120.02412.99406777328137Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 17:25
181988-02-211988-02-21 18:50:00+00:0053.75-2.483120.05212.450371908743662Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed
191988-03-011988-03-01 19:14:00+00:0053.75-2.483120.06113.515248772993779Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed
201988-03-041988-03-04 19:17:00+00:0053.75-2.483120.06413.12054153236885Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed
211988-03-211988-03-21 19:48:00+00:0053.75-2.483120.08112.760845841429408Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed; spring equinox
221988-03-301988-03-30 20:21:00+00:0053.75-2.483120.09014.61225399332599Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; BST; Red at 20:42
231988-04-111988-04-11 20:33:00+00:0053.75-2.483120.010212.644284394374909Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed
241988-04-281988-04-28 21:06:00+00:0053.75-2.483120.011911.635574736990746Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed
251988-05-051988-05-05 21:47:00+00:0053.75-2.483120.012613.643451423714918Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 21:49
261988-05-191988-05-19 22:24:00+00:0053.75-2.483120.014013.051906668946685Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 22:31
271988-05-201988-05-20 22:37:00+00:0053.75-2.483120.014113.600731151777428Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 22:29
281988-05-251988-05-24 23:40:00+00:0053.75-2.483120.014515.078091677741076Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; sunset evening May 24; Red not observed; late May very short night
291988-06-061988-06-05 23:46:00+00:0053.75-2.483120.015713.443524956519475Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; sunset evening Jun 5; Red at 23:00; near summer solstice
301988-08-011988-08-01 22:25:00+00:0053.75-2.483120.021414.587060840572397Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 22:20
311988-08-061988-08-06 22:15:00+00:0053.75-2.483120.021915.189669648022404Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 22:12
321987-09-221987-09-22 19:37:00+00:0053.75-2.483120.026513.438358772186007Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red Shafaq at 20:10
331987-09-241987-09-24 19:30:00+00:0053.75-2.483120.026713.199375575769137Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red Shafaq at 20:10
341987-09-261987-09-26 19:25:00+00:0053.75-2.483120.026913.231915450748724Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red Shafaq at 20:00
351987-10-011987-10-01 19:15:00+00:0053.75-2.483120.027413.63492307876251Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red Shafaq at 20:00
361987-10-101987-10-10 18:55:00+00:0053.75-2.483120.028313.921178014425038Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red Shafaq at 19:35
371987-10-251987-10-25 18:15:00+00:0053.75-2.483120.029812.819339581481398Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; clocks back to GMT; Red at 17:55
381987-11-141987-11-14 17:40:00+00:0053.75-2.483120.031812.539324877399324Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red Shafaq not observed
391987-11-251987-11-25 17:26:00+00:0053.75-2.483120.032912.20641718838467Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed
401987-11-261987-11-26 17:25:00+00:0053.75-2.483120.033012.17741279007421Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed
411987-11-271987-11-27 17:30:00+00:0053.75-2.483120.033112.98253841396239Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red Shafaq at 17:10
421987-12-081987-12-08 17:35:00+00:0053.75-2.483120.034214.358792503415986Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 17:15
431987-12-091987-12-09 17:33:00+00:0053.75-2.483120.034314.09893112625368Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 17:15
441987-12-101987-12-10 17:30:00+00:0053.75-2.483120.034413.69447122926762Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed
451987-12-121987-12-12 17:20:00+00:0053.75-2.483120.034612.323457602454717Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red at 17:00
461987-12-141987-12-14 17:27:00+00:0053.75-2.483120.034813.263016717134377Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed
471987-12-251987-12-25 17:30:00+00:0053.75-2.483120.035913.07892604352961Shaukat 2015 booklet / Miftahi 2007, Blackburn Lancashire UKnaked eye; Shafaq Abyad (white); Hizbul Ulama observers; Red not observed