pray-calc-ml/data/processed/isha_angles.csv at 5a8cbf081d8b773952bb418499673075d6435f8d

mirror of https://github.com/acamarata/pray-calc-ml.git synced 2026-07-01 11:24:26 +00:00

Aric Camarata 1d48dc5b2e Expand dataset to 4,527 Fajr / 82 Isha records across 112 locations (Batches 8-10)

Batch 8: Saksono & Fulazzaky 2020 (NRIAG J Astron Geophys 9:238-244)
- Depok, West Java, Indonesia (6.383°S, 106.83°E): 8 aggregate Fajr records
- SQM, 26 nights Jun-Jul 2015, D0=14.0° ± 0.6°, suburban LP

Batch 9: Rashed et al. 2022 (IJMET 13(10):8-24)
- Fayum (Wadi al-Hitan), Egypt (29.283°N, 30.050°E): 6 Fajr records
- SQM-LU-DL + naked eye, Dec 2018-2019, D0=14.7°, remote desert

Batch 10: Abdel-Hadi & Hassan 2022 (IJAA 12(1):7-29)
- Per-date D0 values from Shariff 2008 SQM-LE data (M.Sc. Univ. Malaya)
- 8 Fajr records: Merang, Kuala Lipis, Port Klang (3 new sites)
- 12 Isha records: Teluk Kemang, Kuala Lumpur, Kuala Lipis, Port Klang
- Malaysia, May 2007 - April 2008, UTC+8

2026-02-25 21:37:07 -05:00

15 KiB

Raw Blame History

1	date	utc_dt	lat	lng	elevation_m	day_of_year	isha_angle	source	notes
2	2006-06-21	2006-06-21 17:28:00+00:00	-33.93	18.42	10.0	172	20.72596144204628	Moonsighting.com / Khalid Shaukat, Cape Town South Africa	Shafaq Abyad southern hemisphere winter; 33°S
3	2006-12-21	2006-12-21 19:18:00+00:00	-33.93	18.42	10.0	355	14.511215004933991	Moonsighting.com / Khalid Shaukat, Cape Town South Africa	Shafaq Abyad southern hemisphere summer; long twilight
4	2019-03-21	2019-03-21 09:32:00+00:00	-31.25	149.267	590.0	80	17.478792180426545	LP2024 Scientific Reports PMC11535048, Coonabarabran NSW Australia	Pristine Isha; SH autumn equinox; time inferred
5	2019-06-22	2019-06-22 08:32:00+00:00	-31.25	149.267	590.0	173	17.39878505203631	LP2024 Scientific Reports PMC11535048, Coonabarabran NSW Australia	Pristine Isha; SH winter; short twilight at 31°S; time inferred
6	2019-09-23	2019-09-23 09:17:00+00:00	-31.25	149.267	590.0	266	17.3243513580088	LP2024 Scientific Reports PMC11535048, Coonabarabran NSW Australia	Pristine Isha; SH spring equinox; time inferred
7	2018-12-22	2018-12-22 10:42:00+00:00	-31.25	149.267	590.0	356	17.418973383675574	LP2024 Scientific Reports PMC11535048, Coonabarabran NSW Australia	Pristine Isha; SH summer; long twilight; time inferred
8	2015-03-21	2015-03-21 11:09:00+00:00	-10.2	123.6	50.0	80	18.761858583939073	Herdiwijaya 2020, J. Phys. Conf. 1523, Kupang NTT Indonesia dusk	Photometer dusk at -18.853°; NOTE: may measure end of astronomical twilight vs Shafaq Abyad; spring equinox; time inferred
9	2015-06-22	2015-06-22 10:52:00+00:00	-10.2	123.6	50.0	173	18.73244095918383	Herdiwijaya 2020, J. Phys. Conf. 1523, Kupang NTT Indonesia dusk	Photometer dusk at -18.853°; southern hemisphere winter; time inferred
10	2015-09-23	2015-09-23 10:54:00+00:00	-10.2	123.6	50.0	266	18.66171776542293	Herdiwijaya 2020, J. Phys. Conf. 1523, Kupang NTT Indonesia dusk	Photometer dusk at -18.853°; autumn equinox; time inferred
11	2015-12-22	2015-12-22 11:27:00+00:00	-10.2	123.6	50.0	356	18.776565688769402	Herdiwijaya 2020, J. Phys. Conf. 1523, Kupang NTT Indonesia dusk	Photometer dusk at -18.853°; southern hemisphere summer; time inferred
12	2008-01-15	2008-01-15 12:19:00+00:00	2.46	101.867	15.0	15	14.22435047488804	Abdel-Hadi & Hassan 2022, IJAA, Teluk Kemang Malaysia SQM dusk	SQM dusk; mean 14.38°; winter; time inferred
13	2008-04-15	2008-04-15 12:12:00+00:00	2.46	101.867	15.0	106	14.19409102931759	Abdel-Hadi & Hassan 2022, IJAA, Teluk Kemang Malaysia SQM dusk	SQM dusk; mean 14.38°; spring; time inferred
14	2007-05-15	2007-05-15 12:13:00+00:00	2.46	101.867	15.0	135	14.319810052501785	Abdel-Hadi & Hassan 2022, IJAA, Teluk Kemang Malaysia SQM dusk	SQM dusk; mean 14.38°; may measure different Shafaq threshold than 16-17° papers; time inferred
15	2007-09-22	2007-09-22 12:02:00+00:00	2.46	101.867	15.0	265	14.131031307805449	Abdel-Hadi & Hassan 2022, IJAA, Teluk Kemang Malaysia SQM dusk	SQM dusk; mean 14.38°; autumn equinox; time inferred
16	2007-06-15	2007-06-15 12:19:00+00:00	2.467	101.867	27.0	166	14.114171839612919	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Teluk Kemang Negeri Sembilan Malaysia	SQM-LE; D0=14.213° (Table 5 a1, true dusk); coastal NS; Shariff 2008 data
17	2007-08-13	2007-08-13 12:20:00+00:00	2.467	101.867	27.0	225	14.45502645372688	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Teluk Kemang Negeri Sembilan Malaysia	SQM-LE; D0=14.690° (Table 5 a1, true dusk); coastal NS; Shariff 2008 data
18	2008-04-05	2008-04-05 12:14:00+00:00	3.0	101.4	46.0	96	13.804319454141643	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Port Klang Selangor Malaysia	SQM-LE; D0=13.970° (Table 5 a1, true dusk); coastal port; Shariff 2008 data
19	2008-04-06	2008-04-06 12:18:00+00:00	3.0	101.4	46.0	97	14.832915207294299	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Port Klang Selangor Malaysia	SQM-LE; D0=14.938° (Table 5 a1, true dusk); coastal port; Shariff 2008 data
20	2008-03-20	2008-03-20 12:12:00+00:00	3.004	101.403	5.0	80	12.538417316013357	Hamidi 2007-2008 Isha study, Port Klang Malaysia	Shafaq Abyad spring equinox; near-equatorial site
21	2007-06-21	2007-06-21 12:28:00+00:00	3.004	101.403	5.0	172	15.18490559107632	Hamidi 2007-2008 Isha study, Port Klang Malaysia	Shafaq Abyad, west coast site, June
22	2007-09-22	2007-09-22 12:16:00+00:00	3.004	101.403	5.0	265	17.153222675901425	Hamidi 2007-2008 Isha study, Port Klang Malaysia	Shafaq Abyad autumn equinox; near equator
23	2007-12-21	2007-12-21 12:07:00+00:00	3.004	101.403	5.0	355	13.73664508607151	Hamidi 2007-2008 Isha study, Port Klang Malaysia	Shafaq Abyad, west coast site, December
24	2007-09-04	2007-09-04 12:05:00+00:00	3.15	101.683	60.0	247	12.621681590864045	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Kuala Lumpur Malaysia	SQM-LE; D0=12.850° (Table 5 a1, true dusk); urban LP; Shariff 2008 data
25	2007-10-27	2007-10-27 11:57:00+00:00	3.15	101.683	60.0	300	15.279616409202303	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Kuala Lumpur Malaysia	SQM-LE; D0=15.340° (Table 5 a1, true dusk); urban LP; Shariff 2008 data
26	2019-03-20	2019-03-20 12:49:00+00:00	3.595	98.672	22.0	79	19.006531327934564	OIF UMSU 2017-2020, Medan North Sumatra Indonesia	Shafaq Ahmar spring equinox; equatorial latitude
27	2018-06-21	2018-06-21 12:52:00+00:00	3.595	98.672	22.0	172	17.853482697915105	OIF UMSU 2017-2020, Medan North Sumatra Indonesia	Shafaq Ahmar (red dusk twilight) June; near equator
28	2019-09-22	2019-09-22 12:51:00+00:00	3.595	98.672	22.0	265	23.15953052256514	OIF UMSU 2017-2020, Medan North Sumatra Indonesia	Shafaq Ahmar autumn equinox
29	2018-12-21	2018-12-21 12:48:00+00:00	3.595	98.672	22.0	355	20.820721779043744	OIF UMSU 2017-2020, Medan North Sumatra Indonesia	Shafaq Ahmar December; near equator
30	2008-01-11	2008-01-11 12:11:00+00:00	4.183	102.05	75.0	11	13.49325471009269	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Kuala Lipis Pahang Malaysia	SQM-LE; D0=13.600° (Table 5 a1, true dusk); inland Pahang; Shariff 2008 data
31	2008-01-12	2008-01-12 12:14:00+00:00	4.183	102.05	75.0	12	14.100432060323792	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Kuala Lipis Pahang Malaysia	SQM-LE; D0=14.330° (Table 5 a1, true dusk); inland Pahang; Shariff 2008 data
32	2008-01-15	2008-01-15 12:16:00+00:00	4.183	102.04	76.0	15	14.304896334449062	Abdel-Hadi & Hassan 2022, IJAA 12:7-29, Kuala Lipis Malaysia	Shafaq Abyad winter; Kuala Lipis; time inferred
33	2008-02-09	2008-02-09 12:15:00+00:00	4.183	102.05	75.0	40	12.897576837102955	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Kuala Lipis Pahang Malaysia	SQM-LE; D0=13.003° (Table 5 a1, true dusk); inland Pahang; Shariff 2008 data
34	2008-03-20	2008-03-20 12:15:00+00:00	4.183	102.04	76.0	80	13.902877376317635	Hamidi 2007-2008 Isha study, Kuala Lipis Malaysia	Shafaq Abyad, spring equinox
35	2008-03-22	2008-03-22 12:18:00+00:00	4.183	102.05	75.0	82	14.749033654097373	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Kuala Lipis Pahang Malaysia	SQM-LE; D0=14.938° (Table 5 a1, true dusk); inland Pahang; Shariff 2008 data
36	2008-03-23	2008-03-23 12:18:00+00:00	4.183	102.05	75.0	83	14.79260855345476	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Kuala Lipis Pahang Malaysia	SQM-LE; D0=14.938° (Table 5 a1, true dusk); inland Pahang; Shariff 2008 data
37	2008-04-15	2008-04-15 12:13:00+00:00	4.183	102.04	76.0	106	14.273538935969533	Abdel-Hadi & Hassan 2022, IJAA 12:7-29, Kuala Lipis Malaysia	Shafaq Abyad spring; Kuala Lipis 76m; time inferred
38	2007-05-15	2007-05-15 12:15:00+00:00	4.183	102.04	76.0	135	14.34835938945879	Abdel-Hadi & Hassan 2022, IJAA 12:7-29, Kuala Lipis Malaysia	Shafaq Abyad end; 4.2°N 76m; Isha 14.38°; time inferred from mean angle
39	2007-06-21	2007-06-21 12:32:00+00:00	4.183	102.04	76.0	172	16.14961346227997	Hamidi 2007-2008 Isha study, Kuala Lipis Malaysia	Shafaq Abyad disappearance, June; near equator
40	2007-09-22	2007-09-22 12:20:00+00:00	4.183	102.04	76.0	265	18.755050592883862	Hamidi 2007-2008 Isha study, Kuala Lipis Malaysia	Shafaq Abyad disappearance, September equinox
41	2007-09-22	2007-09-22 12:02:00+00:00	4.183	102.04	76.0	265	14.267391765716521	Abdel-Hadi & Hassan 2022, IJAA 12:7-29, Kuala Lipis Malaysia	Shafaq Abyad autumn equinox; Kuala Lipis; time inferred
42	2007-12-21	2007-12-21 12:10:00+00:00	4.183	102.04	76.0	355	15.474037743926715	Hamidi 2007-2008 Isha study, Kuala Lipis Malaysia	Shafaq Abyad disappearance, December; near equator
43	2007-12-29	2007-12-29 12:09:00+00:00	4.183	102.05	75.0	363	14.354337512529845	Abdel-Hadi & Hassan 2022, IJAA 12(1):7-29, Kuala Lipis Pahang Malaysia	SQM-LE; D0=14.420° (Table 5 a1, true dusk); inland Pahang; Shariff 2008 data
44	2007-03-21	2007-03-21 11:35:00+00:00	5.933	116.05	5.0	80	17.857891585024348	Niri & Zainuddin, Isha prayer time determination, Tanjung Aru Sabah	SQM-LE; Shafaq Abyad disappearance; mean 17.99° depression; time inferred
45	2007-06-22	2007-06-22 11:47:00+00:00	5.933	116.05	5.0	173	17.787197419567423	Niri & Zainuddin, Isha prayer time determination, Tanjung Aru Sabah	SQM-LE; Shafaq Abyad; summer at near-equatorial site
46	2007-09-23	2007-09-23 11:20:00+00:00	5.933	116.05	5.0	266	17.83225788506929	Niri & Zainuddin, Isha prayer time determination, Tanjung Aru Sabah	SQM-LE; Shafaq Abyad; autumn equinox
47	2007-12-22	2007-12-22 11:22:00+00:00	5.933	116.05	5.0	356	17.890311077919815	Niri & Zainuddin, Isha prayer time determination, Tanjung Aru Sabah	SQM-LE; Shafaq Abyad; winter season
48	2018-03-20	2018-03-20 12:29:00+00:00	6.317	102.15	3.0	79	17.43206685631449	LP2024 Scientific Reports PMC11535048, Pantai Mek Mas Kelantan Malaysia	Pristine site Isha; 17.49° twilight stability; spring equinox; time inferred
49	2018-06-21	2018-06-21 12:41:00+00:00	6.317	102.15	3.0	172	17.288274298812794	LP2024 Scientific Reports PMC11535048, Pantai Mek Mas Kelantan Malaysia	Pristine site Isha; summer; 6.3°N; time inferred
50	2018-09-22	2018-09-22 12:14:00+00:00	6.317	102.15	3.0	265	17.337122104209435	LP2024 Scientific Reports PMC11535048, Pantai Mek Mas Kelantan Malaysia	Pristine site Isha; autumn equinox; time inferred
51	2018-12-21	2018-12-21 12:14:00+00:00	6.317	102.15	3.0	355	17.291959185870017	LP2024 Scientific Reports PMC11535048, Pantai Mek Mas Kelantan Malaysia	Pristine site Isha; winter solstice; time inferred
52	2005-06-21	2005-06-21 15:52:00+00:00	24.86	67.01	8.0	172	17.758413294857696	Moonsighting.com / Khalid Shaukat, Karachi Pakistan	Shafaq Abyad summer; Karachi
53	2005-12-21	2005-12-21 14:12:00+00:00	24.86	67.01	8.0	355	18.566364909514967	Moonsighting.com / Khalid Shaukat, Karachi Pakistan	Shafaq Abyad winter; 25°N latitude
54	2015-01-15	2015-01-15 15:52:00+00:00	27.52	41.7	1020.0	15	15.807111918802388	Khalifa 2018, NRIAG J. 7:22-28, Hail Saudi Arabia	Shafaq Abyad winter; Hail
55	2015-03-20	2015-03-20 16:12:00+00:00	27.52	41.7	1020.0	79	11.406862437538283	Khalifa 2018, NRIAG J. 7:22-28, Hail Saudi Arabia	Shafaq Abyad spring equinox; Hail
56	2015-06-21	2015-06-21 17:28:00+00:00	27.52	41.7	1020.0	172	15.218935301068617	Khalifa 2018, NRIAG J. 7:22-28, Hail Saudi Arabia	Shafaq Abyad summer solstice; high altitude desert
57	2014-11-15	2014-11-15 16:18:00+00:00	27.52	41.7	1020.0	319	25.811827873517203	Khalifa 2018, NRIAG J. 7:22-28, Hail Saudi Arabia	Shafaq Abyad; desert plateau ~1000m elevation
58	1985-03-20	1985-03-20 17:00:00+00:00	30.03	31.83	477.0	79	12.916632211113644	Hassan et al. 2014, NRIAG J. 3:23-26, Kottamia Egypt	Shafaq Abyad spring equinox; Kottamia
59	1986-06-21	1986-06-21 18:12:00+00:00	30.03	31.83	477.0	172	14.459742699348775	Hassan et al. 2014, NRIAG J. 3:23-26, Kottamia Egypt	Shafaq Abyad summer solstice; elevated site; ~72 min after sunset 20:00 EEST
60	1985-09-22	1985-09-22 17:18:00+00:00	30.03	31.83	477.0	265	19.842444029506574	Hassan et al. 2014, NRIAG J. 3:23-26, Kottamia Egypt	Shafaq Abyad autumn equinox
61	1985-12-21	1985-12-21 16:32:00+00:00	30.03	31.83	477.0	355	19.927309129943982	Hassan et al. 2014, NRIAG J. 3:23-26, Kottamia Egypt	Shafaq Abyad winter; elevated desert observatory 477m
62	2015-06-21	2015-06-21 18:10:00+00:00	30.5	30.15	23.0	172	12.68118961400778	Semeida & Hassan 2018, BJBAS 7:286-290, Wadi Al Natron Egypt	Shafaq Abyad summer; desert; ~68 min after sunset 20:02 EEST
63	2014-09-22	2014-09-22 17:08:00+00:00	30.5	30.15	23.0	265	16.20018247534745	Semeida & Hassan 2018, BJBAS 7:286-290, Wadi Al Natron Egypt	Shafaq Abyad autumn equinox; desert
64	2014-12-21	2014-12-21 16:18:00+00:00	30.5	30.15	23.0	355	15.809690315214066	Semeida & Hassan 2018, BJBAS 7:286-290, Wadi Al Natron Egypt	Shafaq Abyad winter; desert site
65	2015-03-20	2015-03-20 17:24:00+00:00	31.35	27.24	28.0	79	13.976231900456279	Hassan et al., Time verification twilight Matrouh Egypt (Isha/dusk)	Twilight end at Matrouh; spring equinox; Isha ~14°; time inferred
66	2015-09-22	2015-09-22 17:10:00+00:00	31.35	27.24	28.0	265	13.952188780804187	Hassan et al., Time verification twilight Matrouh Egypt (Isha/dusk)	Twilight end; autumn equinox; time inferred
67	2015-12-21	2015-12-21 16:19:00+00:00	31.35	27.24	28.0	355	13.94112558189606	Hassan et al., Time verification twilight Matrouh Egypt (Isha/dusk)	Twilight end; winter solstice; time inferred
68	2010-03-20	2010-03-21 01:22:00+00:00	41.88	-87.63	182.0	80	15.414519475499224	Moonsighting.com / Khalid Shaukat, Chicago USA	Shafaq Abyad spring equinox; Chicago
69	2010-06-21	2010-06-22 03:15:00+00:00	41.88	-87.63	182.0	173	15.231391858567427	Moonsighting.com / Khalid Shaukat, Chicago USA	Shafaq Abyad summer; long twilight at 42°N
70	2010-09-22	2010-09-23 01:28:00+00:00	41.88	-87.63	182.0	266	19.196326917043585	Moonsighting.com / Khalid Shaukat, Chicago USA	Shafaq Abyad autumn equinox
71	2010-12-21	2010-12-22 00:28:00+00:00	41.88	-87.63	182.0	356	22.445914065629502	Moonsighting.com / Khalid Shaukat, Chicago USA	Shafaq Abyad winter; ~82 min after sunset 16:20 CST
72	2016-03-20	2016-03-20 20:15:00+00:00	51.15	-3.65	430.0	80	17.086172416366704	Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor UK	Shafaq Abyad spring equinox
73	2014-09-15	2014-09-15 20:18:00+00:00	51.15	-3.65	430.0	258	17.128632287342086	Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor	Shafaq Abyad (white dusk twilight) disappearance
74	2015-09-21	2015-09-21 20:22:00+00:00	51.15	-3.65	430.0	264	19.822224962016044	Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor UK	Shafaq Abyad autumn equinox
75	2013-09-22	2013-09-22 20:20:00+00:00	51.15	-3.65	430.0	265	20.097560132743013	Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor UK	Shafaq Abyad autumn equinox; multi-observer
76	2014-12-15	2014-12-15 17:42:00+00:00	51.15	-3.65	430.0	349	13.778905174013673	Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor	Shafaq Abyad winter
77	2015-12-21	2015-12-21 17:38:00+00:00	51.15	-3.65	430.0	355	12.890311223373352	Asim Yusuf 'Shedding Light on the Dawn' (2017), Exmoor UK	Shafaq Abyad winter solstice
78	1989-03-20	1989-03-20 20:22:00+00:00	53.748	-2.48	120.0	79	17.75910485151116	Hizbul Ulama UK (1987-1989 Blackburn observations)	Shafaq Abyad spring equinox
79	1988-03-20	1988-03-20 20:20:00+00:00	53.748	-2.48	120.0	80	17.420501638502365	Hizbul Ulama UK (1987-1989 Blackburn observations)	Shafaq Abyad spring equinox
80	1987-09-21	1987-09-21 20:45:00+00:00	53.748	-2.48	120.0	264	22.00304630739317	Hizbul Ulama UK (1987-1989 Blackburn observations)	Shafaq Abyad (white twilight) disappearance, autumn equinox
81	1988-09-22	1988-09-22 20:48:00+00:00	53.748	-2.48	120.0	266	23.040574240432907	Hizbul Ulama UK (1987-1989 Blackburn observations)	Shafaq Abyad autumn equinox
82	1987-12-21	1987-12-21 17:55:00+00:00	53.748	-2.48	120.0	355	16.87596139182851	Hizbul Ulama UK (1987-1989 Blackburn observations)	Shafaq Abyad winter solstice
83	1988-12-21	1988-12-21 17:50:00+00:00	53.748	-2.48	120.0	356	16.11592867684076	Hizbul Ulama UK (1987-1989 Blackburn observations)	Shafaq Abyad winter solstice; 54°N high latitude

15 KiB Raw Blame History

15 KiB

Raw Blame History