{"id":"vidhyamitra:city-day:noida:2001-10-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/noida/2001-10-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-10-20","date_display":"October 20, 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":10,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452202.770833,"kali_year":5103,"ahargana":1863737.2708,"sun":{"sidereal_longitude":182.1136,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":224.515,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.4014,"elapsed_within_tithi_degrees":6.4014},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":224.515,"elapsed_within_degrees":11.1817},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":46.6286},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":10,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452202.770833,"ahargana":1863737.2708,"kali_year":5103,"ayanamsa_lahiri":23.8782,"grahas":{"sun":{"sidereal_longitude":182.84187900000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":225.249279,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false,"latitude":1.9509},"mars":{"sidereal_longitude":270.923679,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":171.242979,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":81.41697899999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"venus":{"sidereal_longitude":161.779579,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":50.53267899999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":70.2305,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":250.2305,"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":10,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452202.770833,"kali_year":5103,"ahargana":1863737.2708,"sun":{"sidereal_longitude":182.1136,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":224.515,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.4014,"elapsed_within_tithi_degrees":6.4014},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":224.515,"elapsed_within_degrees":11.1817},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":46.6286},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.951,"elongation":42.401},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.951,"opposition_distance":137.599}},"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":"06:24","sunsetLocal":"17:46","solarNoonLocal":"12:05","dayLengthHours":11.372740512273474,"dayLengthDisplay":"11 Hours 22 Mins 22 Secs","nightLengthDisplay":"12 Hours 37 Mins 38 Secs","moonriseLocal":"09:42","moonsetLocal":"20:07","rahuKala":{"name":"Rāhu Kāla","start":"09:14","end":"10:39","startHours":9.235800351194442,"endHours":10.657392915228627,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:30","end":"14:55","startHours":13.500578043296995,"endHours":14.922170607331179,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:24","end":"07:49","startHours":6.392615223126074,"endHours":7.814207787160258,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:03","end":"09:26","startHours":9.046254675989886,"endHours":9.425346026399001,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:52","end":"07:10","startHours":6.866479411137469,"endHours":7.169752491464761,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:27","startHours":11.699894128853696,"endHours":12.458076829671928,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:53","end":"05:38","startHours":4.876249821489611,"endHours":5.634432522307843,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:27","end":"06:24","startHours":5.444886847103285,"endHours":6.392615223126074,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:44","startHours":13.974442231308391,"endHours":14.732624932126622,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:34","end":"17:58","startHours":17.56535573539955,"endHours":17.965355735399548,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:46","end":"18:14","startHours":17.76535573539955,"endHours":18.239219923410943,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:31","end":"19:16","startHours":17.51535573539955,"endHours":19.26535573539955,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:27","startHours":23.699894128853696,"endHours":24.458076829671928,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:24","end":"07:49","startHours":6.392615223126074,"endHours":7.814207787160258,"quality":"inauspicious"},{"name":"Śubha","start":"07:49","end":"09:14","startHours":7.814207787160258,"endHours":9.235800351194442,"quality":"auspicious"},{"name":"Roga","start":"09:14","end":"10:39","startHours":9.235800351194442,"endHours":10.657392915228627,"quality":"inauspicious"},{"name":"Udveg","start":"10:39","end":"12:05","startHours":10.657392915228627,"endHours":12.078985479262812,"quality":"inauspicious"},{"name":"Chala","start":"12:05","end":"13:30","startHours":12.078985479262812,"endHours":13.500578043296995,"quality":"neutral"},{"name":"Labha","start":"13:30","end":"14:55","startHours":13.500578043296995,"endHours":14.922170607331179,"quality":"auspicious"},{"name":"Amṛta","start":"14:55","end":"16:21","startHours":14.922170607331179,"endHours":16.343763171365364,"quality":"auspicious"},{"name":"Kāla","start":"16:21","end":"17:46","startHours":16.343763171365364,"endHours":17.76535573539955,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:46","end":"19:21","startHours":17.76535573539955,"endHours":19.343763171365364,"quality":"auspicious"},{"name":"Amṛta","start":"19:21","end":"20:55","startHours":19.343763171365364,"endHours":20.922170607331182,"quality":"auspicious"},{"name":"Kāla","start":"20:55","end":"22:30","startHours":20.922170607331182,"endHours":22.500578043296997,"quality":"inauspicious"},{"name":"Śubha","start":"22:30","end":"00:05","startHours":22.500578043296997,"endHours":24.078985479262812,"quality":"auspicious"},{"name":"Roga","start":"00:05","end":"01:39","startHours":24.078985479262812,"endHours":25.657392915228627,"quality":"inauspicious"},{"name":"Udveg","start":"01:39","end":"03:14","startHours":25.657392915228627,"endHours":27.23580035119444,"quality":"inauspicious"},{"name":"Chala","start":"03:14","end":"04:49","startHours":27.23580035119444,"endHours":28.81420778716026,"quality":"neutral"},{"name":"Labha","start":"04:49","end":"06:24","startHours":28.81420778716026,"endHours":30.392615223126075,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:24","end":"07:24","startHours":6.392615223126074,"endHours":7.392615223126074,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:24","end":"08:24","startHours":7.392615223126074,"endHours":8.392615223126075,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:24","end":"09:24","startHours":8.392615223126075,"endHours":9.392615223126075,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:24","end":"10:24","startHours":9.392615223126075,"endHours":10.392615223126075,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:24","end":"11:24","startHours":10.392615223126075,"endHours":11.392615223126075,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:24","end":"12:24","startHours":11.392615223126075,"endHours":12.392615223126075,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:24","end":"13:24","startHours":12.392615223126075,"endHours":13.392615223126075,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:24","end":"14:24","startHours":13.392615223126075,"endHours":14.392615223126075,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:24","end":"15:24","startHours":14.392615223126075,"endHours":15.392615223126075,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:24","end":"16:24","startHours":15.392615223126075,"endHours":16.392615223126075,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:24","end":"17:24","startHours":16.392615223126075,"endHours":17.392615223126075,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:24","end":"18:24","startHours":17.392615223126075,"endHours":18.392615223126075,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:24","end":"19:24","startHours":18.392615223126075,"endHours":19.392615223126075,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:24","end":"20:24","startHours":19.392615223126075,"endHours":20.392615223126075,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:24","end":"21:24","startHours":20.392615223126075,"endHours":21.392615223126075,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:24","end":"22:24","startHours":21.392615223126075,"endHours":22.392615223126075,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:24","end":"23:24","startHours":22.392615223126075,"endHours":23.392615223126075,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:24","end":"00:24","startHours":23.392615223126075,"endHours":24.392615223126075,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:24","end":"01:24","startHours":24.392615223126075,"endHours":25.392615223126075,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:24","end":"02:24","startHours":25.392615223126075,"endHours":26.392615223126075,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:24","end":"03:24","startHours":26.392615223126075,"endHours":27.392615223126075,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:24","end":"04:24","startHours":27.392615223126075,"endHours":28.392615223126075,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:24","end":"05:24","startHours":28.392615223126075,"endHours":29.392615223126075,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:24","end":"06:24","startHours":29.392615223126075,"endHours":30.392615223126075,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.30180794798686,"eotMinutes":15.696871244231174,"ayanamsa":23.8782}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Caturthī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 October 20, 2001 CE · Noida, Uttar Pradesh · Vidhyamitra","description":"October 20, 2001 CE for Noida, Uttar Pradesh: Śukla Caturthī, sūryodaya 06:24, sūryāsta 17:46.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/noida/2001-10-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/noida/2001-10-20","sa":"https://sa.vidhyamitra.com/city/noida/2001-10-20","hi":"https://hi.vidhyamitra.com/city/noida/2001-10-20","x-default":"https://vidhyamitra.com/city/noida/2001-10-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T13:03:33.881Z","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":"2026-05-31T13:03:33.881Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:03:33.881Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}