mirror of
https://github.com/acamarata/pray-calc-ml.git
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c1eeef53c4
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
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34 lines
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To: (via ResearchGate messages to Mohammed G. Rashed and A.H. Hassan)
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Subject: Request for Per-Night Twilight Observation Data — Open-Source Prayer Time Dataset
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Dear Dr. Rashed and Dr. Hassan,
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My name is Ali Camarata. I am building an open-source dataset of verified Fajr and Isha twilight observations for empirical Islamic prayer time modeling.
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Your research at NRIAG represents some of the most comprehensive twilight photometry work in the Middle East and North Africa region. I have been studying your publications extensively:
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- Hassan et al. (2014), NRIAG J. Astronomy & Geophysics 3:23-26 (Kottamia, Baharia, Matrouh, Aswan)
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- Hassan et al. (2016), NRIAG J. 5:9-15 (Sinai, Assiut)
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- Rashed et al. (2022), IJMET 13(10):8-24 (Wadi al-Hitan, Fayum)
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- Semeida & Hassan (2018), BJBAS 7:286-290 (Wadi Al Natron)
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- Hassan et al. (2020), Taylor & Francis (multi-site Egypt polynomial model)
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- Rashed & Hassan (2025), Springer (6 Egyptian sites, 2015-2019)
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These papers publish mean depression angles across many observation nights, but the per-night raw data (specific dates with specific observed times) would be invaluable for training latitude-dependent predictive models.
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Would you be willing to share the per-night observation logs from any of your campaigns? The multi-site 2015-2019 dataset (Kottamia, Alexandria, Matrouh, Hurghada, Marsa Alam, Dahab) would be particularly valuable given its geographic diversity across Egypt.
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For each observation night, I need:
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- Calendar date
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- Site name and coordinates
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- Local observed time of Fajr onset (morning) and/or Isha onset (evening)
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- Sky condition notes (if available)
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Our project: https://github.com/acamarata/pray-calc-ml
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Current dataset: 4,200+ verified observations from 140+ sites worldwide. Egyptian data currently limited to aggregate records from your publications.
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Full attribution to NRIAG would be included in all outputs. I would also be happy to share our compiled global dataset for your own research.
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Best regards,
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Ali Camarata
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alisalaah@gmail.com
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