{"id":"vidhyamitra:city-day:mathura:1971-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1971-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-10-01","date_display":"October 1, 1971 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":1971,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441225.770833,"kali_year":5073,"ahargana":1852760.2708,"sun":{"sidereal_longitude":163.0768,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":297.1493,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":134.0725,"elapsed_within_tithi_degrees":2.0725},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":297.1493,"elapsed_within_degrees":3.8159},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":100.2261},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1971,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441225.770833,"ahargana":1852760.2708,"kali_year":5073,"ayanamsa_lahiri":23.4583,"grahas":{"sun":{"sidereal_longitude":163.75388099999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":295.321181,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false,"latitude":0.4156},"mars":{"sidereal_longitude":291.79208100000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":158.10308099999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":220.22518100000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":173.383781,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":43.317881,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":291.8447,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":111.8447,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"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":1971,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441225.770833,"kali_year":5073,"ahargana":1852760.2708,"sun":{"sidereal_longitude":163.0768,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":297.1493,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":134.0725,"elapsed_within_tithi_degrees":2.0725},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":297.1493,"elapsed_within_degrees":3.8159},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":100.2261},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.416,"elongation":134.072},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.416,"opposition_distance":45.928}},"eclipse_window_40days":[]},"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:10","sunsetLocal":"18:06","solarNoonLocal":"12:08","dayLengthHours":11.926597655414726,"dayLengthDisplay":"11 Hours 55 Mins 36 Secs","nightLengthDisplay":"12 Hours 04 Mins 24 Secs","moonriseLocal":"15:24","moonsetLocal":"02:25","rahuKala":{"name":"Rāhu Kāla","start":"10:39","end":"12:08","startHours":10.644799223296754,"endHours":12.135623930223595,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:07","end":"16:36","startHours":15.117273344077276,"endHours":16.608098051004117,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:40","end":"09:09","startHours":7.6631498094430714,"endHours":9.153974516369912,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:21","startHours":8.955197888779667,"endHours":9.352751143960159,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:40","end":"06:59","startHours":6.669266671491845,"endHours":6.987309275636237,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:32","startHours":11.738070675043103,"endHours":12.533177185404083,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:35","end":"05:23","startHours":4.582112081794268,"endHours":5.377218592155249,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:11","end":"06:10","startHours":5.178441964565003,"endHours":6.172325102516231,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:07","end":"14:55","startHours":14.123390206126048,"endHours":14.91849671648703,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:54","end":"18:18","startHours":17.898922757930958,"endHours":18.298922757930956,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:06","end":"18:36","startHours":18.098922757930957,"endHours":18.59586432690657,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:51","end":"19:36","startHours":17.848922757930957,"endHours":19.598922757930957,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:32","startHours":23.738070675043105,"endHours":24.533177185404085,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:10","end":"07:40","startHours":6.172325102516231,"endHours":7.6631498094430714,"quality":"neutral"},{"name":"Labha","start":"07:40","end":"09:09","startHours":7.6631498094430714,"endHours":9.153974516369912,"quality":"auspicious"},{"name":"Amṛta","start":"09:09","end":"10:39","startHours":9.153974516369912,"endHours":10.644799223296754,"quality":"auspicious"},{"name":"Kāla","start":"10:39","end":"12:08","startHours":10.644799223296754,"endHours":12.135623930223595,"quality":"inauspicious"},{"name":"Śubha","start":"12:08","end":"13:38","startHours":12.135623930223595,"endHours":13.626448637150435,"quality":"auspicious"},{"name":"Roga","start":"13:38","end":"15:07","startHours":13.626448637150435,"endHours":15.117273344077276,"quality":"inauspicious"},{"name":"Udveg","start":"15:07","end":"16:36","startHours":15.117273344077276,"endHours":16.608098051004117,"quality":"inauspicious"},{"name":"Chala","start":"16:36","end":"18:06","startHours":16.608098051004117,"endHours":18.098922757930957,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:06","end":"19:36","startHours":18.098922757930957,"endHours":19.608098051004117,"quality":"inauspicious"},{"name":"Udveg","start":"19:36","end":"21:07","startHours":19.608098051004117,"endHours":21.117273344077276,"quality":"inauspicious"},{"name":"Chala","start":"21:07","end":"22:38","startHours":21.117273344077276,"endHours":22.626448637150435,"quality":"neutral"},{"name":"Labha","start":"22:38","end":"00:08","startHours":22.626448637150435,"endHours":24.135623930223595,"quality":"auspicious"},{"name":"Amṛta","start":"00:08","end":"01:39","startHours":24.135623930223595,"endHours":25.644799223296754,"quality":"auspicious"},{"name":"Kāla","start":"01:39","end":"03:09","startHours":25.644799223296754,"endHours":27.153974516369914,"quality":"inauspicious"},{"name":"Śubha","start":"03:09","end":"04:40","startHours":27.153974516369914,"endHours":28.66314980944307,"quality":"auspicious"},{"name":"Roga","start":"04:40","end":"06:10","startHours":28.66314980944307,"endHours":30.172325102516233,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:10","end":"07:10","startHours":6.172325102516231,"endHours":7.172325102516231,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:10","end":"08:10","startHours":7.172325102516231,"endHours":8.172325102516231,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:10","end":"09:10","startHours":8.172325102516231,"endHours":9.172325102516231,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:10","end":"10:10","startHours":9.172325102516231,"endHours":10.172325102516231,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:10","end":"11:10","startHours":10.172325102516231,"endHours":11.172325102516231,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:10","end":"12:10","startHours":11.172325102516231,"endHours":12.172325102516231,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:10","end":"13:10","startHours":12.172325102516231,"endHours":13.172325102516231,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:10","end":"14:10","startHours":13.172325102516231,"endHours":14.172325102516231,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:10","end":"15:10","startHours":14.172325102516231,"endHours":15.172325102516231,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:10","end":"16:10","startHours":15.172325102516231,"endHours":16.172325102516233,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:10","end":"17:10","startHours":16.172325102516233,"endHours":17.172325102516233,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:10","end":"18:10","startHours":17.172325102516233,"endHours":18.172325102516233,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:10","end":"19:10","startHours":18.172325102516233,"endHours":19.172325102516233,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:10","end":"20:10","startHours":19.172325102516233,"endHours":20.172325102516233,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:10","end":"21:10","startHours":20.172325102516233,"endHours":21.172325102516233,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:10","end":"22:10","startHours":21.172325102516233,"endHours":22.172325102516233,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:10","end":"23:10","startHours":22.172325102516233,"endHours":23.172325102516233,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:10","end":"00:10","startHours":23.172325102516233,"endHours":24.172325102516233,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:10","end":"01:10","startHours":24.172325102516233,"endHours":25.172325102516233,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:10","end":"02:10","startHours":25.172325102516233,"endHours":26.172325102516233,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:10","end":"03:10","startHours":26.172325102516233,"endHours":27.172325102516233,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:10","end":"04:10","startHours":27.172325102516233,"endHours":28.172325102516233,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:10","end":"05:10","startHours":28.172325102516233,"endHours":29.172325102516233,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:10","end":"06:10","startHours":29.172325102516233,"endHours":30.172325102516233,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-2.8621394986911426,"eotMinutes":11.167764186584405,"ayanamsa":23.4583}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Dvādaśī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"mathura"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 1, 1971 CE · Mathurā · Vidhyamitra","description":"October 1, 1971 CE for Mathurā: Śukla Dvādaśī, sūryodaya 06:10, sūryāsta 18:06.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1971-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1971-10-01","sa":"https://sa.vidhyamitra.com/city/mathura/1971-10-01","hi":"https://hi.vidhyamitra.com/city/mathura/1971-10-01","x-default":"https://vidhyamitra.com/city/mathura/1971-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T11:02:09.838Z","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":"2026-05-14T11:02:09.838Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T11:02:09.838Z","pillar_versions":{"BOB-History":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}