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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
31 lines
1.6 KiB
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31 lines
1.6 KiB
Text
To: (via ResearchGate message to Dani Herdiwijaya, ITB Astronomy)
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Subject: Request for Per-Night Twilight Observation Data — Yogyakarta 136-Night Campaign
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Assalamu alaykum,
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My name is Ali Camarata. I am building an open-source global dataset of verified Fajr and Isha twilight observations for empirical prayer time modeling.
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Your multi-station twilight photometry work across Indonesia has been very valuable to our project:
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- Herdiwijaya (2015), ICOPIA proceedings (5 sites)
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- Herdiwijaya (2016), J. Phys.: Conf. Ser. 771, 012033 (Kupang Amfoang)
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- Herdiwijaya (2020), J. Phys.: Conf. Ser. 1523, 012007 (5-station comparison)
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The Yogyakarta 2014-2016 campaign with 136 clear SQM nights is particularly interesting. The published papers report aggregate statistics (mean D0 = 17 degrees), but I am wondering whether the per-night observation log is available.
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Specifically, for each of the 136 clear observation nights, I would need:
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- Calendar date
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- Local time of Fajr onset detection
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- Local time of Isha detection (if evening observations were conducted)
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- Any per-night sky quality or weather notes
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Similarly, if per-night logs exist for Bosscha, Bandung, Cimahi, or Kupang Amfoang, those would also be valuable.
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Our project: https://github.com/acamarata/pray-calc-ml
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Current dataset: 4,200+ verified observations. Indonesian data includes BRIN 8-station, Kassim Bahali DSLR, LAPAN, Walisongo, and aggregate records from your publications.
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I would be happy to share the full compiled dataset and provide attribution in all outputs.
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Jazakallahu khairan,
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Ali Camarata
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alisalaah@gmail.com
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