pray-calc-ml/data/raw/raw_sightings/kassim_bahali_2019_ijmet.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

2.4 KiB

1prayerdate_localtime_localutc_offsetlatlngelevation_msourcenotes
2fajr2017-07-2405:478.03.408103.3565Kassim Bahali et al. 2019 IJMET 10(2):1136-1150 DSLR+SQM Dawn Malaysia IndonesiaPekan Pahang Malaysia; clear sky; DSLR=17.63° SQM=16.93° avg=17.28°; time inferred from avg DSLR+SQM angle; Table 6 clear sky nights; sea horizon
3fajr2017-07-3105:538.04.795103.4265Kassim Bahali et al. 2019 IJMET 10(2):1136-1150 DSLR+SQM Dawn Malaysia IndonesiaDungun Terengganu Malaysia; clear sky; DSLR=17.7° SQM=16.53° avg=17.12°; time inferred from avg DSLR+SQM angle; Table 6 clear sky nights
4fajr2017-08-0105:528.04.795103.4265Kassim Bahali et al. 2019 IJMET 10(2):1136-1150 DSLR+SQM Dawn Malaysia IndonesiaDungun Terengganu Malaysia; clear sky; DSLR=17.5° SQM=17.27° avg=17.38°; time inferred from avg DSLR+SQM angle; Table 6 clear sky nights
5fajr2017-08-0505:538.04.795103.4265Kassim Bahali et al. 2019 IJMET 10(2):1136-1150 DSLR+SQM Dawn Malaysia IndonesiaDungun Terengganu Malaysia; clear sky; DSLR=17.63° SQM=16.92° avg=17.27°; time inferred from avg DSLR+SQM angle; Table 6 clear sky nights
6fajr2017-12-2205:327.05.87695.3395Kassim Bahali et al. 2019 IJMET 10(2):1136-1150 DSLR+SQM Dawn Malaysia IndonesiaSabang Aceh Indonesia; clear sky; DSLR=17.47° SQM=16.77° avg=17.12°; time inferred from avg DSLR+SQM angle; Table 6 clear sky nights
7fajr2017-12-2605:337.05.87695.3395Kassim Bahali et al. 2019 IJMET 10(2):1136-1150 DSLR+SQM Dawn Malaysia IndonesiaSabang Aceh Indonesia; clear sky; DSLR=17.68° SQM=17.0° avg=17.34°; time inferred from avg DSLR+SQM angle; Table 6 clear sky nights
8fajr2017-12-2705:327.05.87695.3395Kassim Bahali et al. 2019 IJMET 10(2):1136-1150 DSLR+SQM Dawn Malaysia IndonesiaSabang Aceh Indonesia; clear sky; DSLR=17.57° SQM=18.03° avg=17.80°; time inferred from avg DSLR+SQM angle; Table 6 clear sky nights
9fajr2017-12-2805:317.05.87695.3395Kassim Bahali et al. 2019 IJMET 10(2):1136-1150 DSLR+SQM Dawn Malaysia IndonesiaSabang Aceh Indonesia; clear sky; DSLR=18.15° SQM=18.03° avg=18.09°; time inferred from avg DSLR+SQM angle; Table 6 clear sky nights
10fajr2017-12-2905:317.05.87695.3395Kassim Bahali et al. 2019 IJMET 10(2):1136-1150 DSLR+SQM Dawn Malaysia IndonesiaSabang Aceh Indonesia; clear sky; DSLR=18.03° SQM=18.27° avg=18.15°; time inferred from avg DSLR+SQM angle; Table 6 clear sky nights