{"id":"vidhyamitra:city-day:noida:2001-09-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/noida/2001-09-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-09-18","date_display":"September 18, 2001 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2001,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452170.770833,"kali_year":5103,"ahargana":1863705.2708,"sun":{"sidereal_longitude":150.5889,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":159.3145,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":8.7256,"elapsed_within_tithi_degrees":8.7256},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":159.3145,"elapsed_within_degrees":12.6478},"yoga":{"number":24,"name":"Śukla","sum_longitude":309.9034},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2001,"month":9,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452170.770833,"ahargana":1863705.2708,"kali_year":5103,"ayanamsa_lahiri":23.8769,"grahas":{"sun":{"sidereal_longitude":151.32600100000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":159.80670099999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false,"latitude":4.4953},"mars":{"sidereal_longitude":251.08760099999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":177.78520100000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":78.53130099999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":122.426601,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":50.95390099999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":71.926,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":251.926,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2001,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452170.770833,"kali_year":5103,"ahargana":1863705.2708,"sun":{"sidereal_longitude":150.5889,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":159.3145,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":8.7256,"elapsed_within_tithi_degrees":8.7256},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":159.3145,"elapsed_within_degrees":12.6478},"yoga":{"number":24,"name":"Śukla","sum_longitude":309.9034},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.495,"elongation":8.726},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.495,"opposition_distance":171.274}},"eclipse_window_40days":[]},"city":{"slug":"noida","name":"Noida, Uttar Pradesh","lat":28.5355,"lon":77.391,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"noida","name":"Noida, Uttar Pradesh","lat":28.5355,"lon":77.391,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"06:06","sunsetLocal":"18:22","solarNoonLocal":"12:14","dayLengthHours":12.264787377459148,"dayLengthDisplay":"12 Hours 15 Mins 53 Secs","nightLengthDisplay":"11 Hours 44 Mins 07 Secs","moonriseLocal":"06:48","moonsetLocal":"18:47","rahuKala":{"name":"Rāhu Kāla","start":"15:18","end":"16:50","startHours":15.29662980813688,"endHours":16.829728230319276,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:10","end":"10:42","startHours":9.164236119407306,"endHours":10.697334541589699,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:14","end":"13:46","startHours":12.230432963772092,"endHours":13.763531385954487,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:58","end":"09:22","startHours":8.959822996449653,"endHours":9.368649242364958,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:56","startHours":6.60907208243665,"endHours":6.9361330791688935,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:38","startHours":11.821606717856787,"endHours":12.639259209687397,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:28","end":"05:17","startHours":4.462734291381299,"endHours":5.280386783211909,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:05","end":"06:06","startHours":5.075973660254256,"endHours":6.0980392750425185,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:16","end":"15:06","startHours":14.274564193348619,"endHours":15.09221668517923,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:10","end":"18:34","startHours":18.162826652501668,"endHours":18.562826652501666,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:22","end":"18:52","startHours":18.362826652501667,"endHours":18.873859459895797,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:07","end":"19:52","startHours":18.112826652501667,"endHours":19.862826652501667,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:38","startHours":23.82160671785679,"endHours":24.639259209687395,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:06","end":"07:38","startHours":6.0980392750425185,"endHours":7.631137697224912,"quality":"inauspicious"},{"name":"Udveg","start":"07:38","end":"09:10","startHours":7.631137697224912,"endHours":9.164236119407306,"quality":"inauspicious"},{"name":"Chala","start":"09:10","end":"10:42","startHours":9.164236119407306,"endHours":10.697334541589699,"quality":"neutral"},{"name":"Labha","start":"10:42","end":"12:14","startHours":10.697334541589699,"endHours":12.230432963772092,"quality":"auspicious"},{"name":"Amṛta","start":"12:14","end":"13:46","startHours":12.230432963772092,"endHours":13.763531385954487,"quality":"auspicious"},{"name":"Kāla","start":"13:46","end":"15:18","startHours":13.763531385954487,"endHours":15.29662980813688,"quality":"inauspicious"},{"name":"Śubha","start":"15:18","end":"16:50","startHours":15.29662980813688,"endHours":16.829728230319276,"quality":"auspicious"},{"name":"Roga","start":"16:50","end":"18:22","startHours":16.829728230319276,"endHours":18.362826652501667,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:22","end":"19:50","startHours":18.362826652501667,"endHours":19.829728230319272,"quality":"inauspicious"},{"name":"Śubha","start":"19:50","end":"21:18","startHours":19.829728230319272,"endHours":21.29662980813688,"quality":"auspicious"},{"name":"Roga","start":"21:18","end":"22:46","startHours":21.29662980813688,"endHours":22.763531385954487,"quality":"inauspicious"},{"name":"Udveg","start":"22:46","end":"00:14","startHours":22.763531385954487,"endHours":24.230432963772092,"quality":"inauspicious"},{"name":"Chala","start":"00:14","end":"01:42","startHours":24.230432963772092,"endHours":25.697334541589697,"quality":"neutral"},{"name":"Labha","start":"01:42","end":"03:10","startHours":25.697334541589697,"endHours":27.164236119407306,"quality":"auspicious"},{"name":"Amṛta","start":"03:10","end":"04:38","startHours":27.164236119407306,"endHours":28.63113769722491,"quality":"auspicious"},{"name":"Kāla","start":"04:38","end":"06:06","startHours":28.63113769722491,"endHours":30.098039275042517,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:06","end":"07:06","startHours":6.0980392750425185,"endHours":7.0980392750425185,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:06","end":"08:06","startHours":7.0980392750425185,"endHours":8.098039275042519,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:06","end":"09:06","startHours":8.098039275042519,"endHours":9.098039275042519,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:06","end":"10:06","startHours":9.098039275042519,"endHours":10.098039275042519,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:06","end":"11:06","startHours":10.098039275042519,"endHours":11.098039275042519,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:06","end":"12:06","startHours":11.098039275042519,"endHours":12.098039275042519,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:06","end":"13:06","startHours":12.098039275042519,"endHours":13.098039275042519,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:06","end":"14:06","startHours":13.098039275042519,"endHours":14.098039275042519,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:06","end":"15:06","startHours":14.098039275042519,"endHours":15.098039275042519,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:06","end":"16:06","startHours":15.098039275042519,"endHours":16.098039275042517,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:06","end":"17:06","startHours":16.098039275042517,"endHours":17.098039275042517,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:06","end":"18:06","startHours":17.098039275042517,"endHours":18.098039275042517,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:06","end":"19:06","startHours":18.098039275042517,"endHours":19.098039275042517,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:06","end":"20:06","startHours":19.098039275042517,"endHours":20.098039275042517,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:06","end":"21:06","startHours":20.098039275042517,"endHours":21.098039275042517,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:06","end":"22:06","startHours":21.098039275042517,"endHours":22.098039275042517,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:06","end":"23:06","startHours":22.098039275042517,"endHours":23.098039275042517,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:06","end":"00:06","startHours":23.098039275042517,"endHours":24.098039275042517,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:06","end":"01:06","startHours":24.098039275042517,"endHours":25.098039275042517,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:06","end":"02:06","startHours":25.098039275042517,"endHours":26.098039275042517,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:06","end":"03:06","startHours":26.098039275042517,"endHours":27.098039275042517,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:06","end":"04:06","startHours":27.098039275042517,"endHours":28.098039275042517,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:06","end":"05:06","startHours":28.098039275042517,"endHours":29.098039275042517,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:06","end":"06:06","startHours":29.098039275042517,"endHours":30.098039275042517,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"North","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":1.9060852333070863,"eotMinutes":6.610022173674397,"ayanamsa":23.8769}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Pratipada · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"noida"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 18, 2001 CE · Noida, Uttar Pradesh · Vidhyamitra","description":"September 18, 2001 CE for Noida, Uttar Pradesh: Śukla Pratipada, sūryodaya 06:06, sūryāsta 18:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/noida/2001-09-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/noida/2001-09-18","sa":"https://sa.vidhyamitra.com/city/noida/2001-09-18","hi":"https://hi.vidhyamitra.com/city/noida/2001-09-18","x-default":"https://vidhyamitra.com/city/noida/2001-09-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T01:49:16.192Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-06-02T01:49:16.192Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T01:49:16.192Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}