{"id":"vidhyamitra:city-day:rishikesh:2011-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2011-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-10-01","date_display":"October 1, 2011 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":2011,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455835.770833,"kali_year":5113,"ahargana":1867370.2708,"sun":{"sidereal_longitude":162.7326,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":210.0605,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.3279,"elapsed_within_tithi_degrees":11.3279},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":210.0605,"elapsed_within_degrees":10.0605},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.7931},"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":2011,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455835.770833,"ahargana":1867370.2708,"kali_year":5113,"ayanamsa_lahiri":24.0171,"grahas":{"sun":{"sidereal_longitude":163.50667099999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":213.73557100000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false,"latitude":-2.0884},"mars":{"sidereal_longitude":103.00607100000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":165.01447099999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":14.595771000000013,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":175.64737100000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":174.33747100000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":237.7366,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":57.7366,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":2011,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455835.770833,"kali_year":5113,"ahargana":1867370.2708,"sun":{"sidereal_longitude":162.7326,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":210.0605,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.3279,"elapsed_within_tithi_degrees":11.3279},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":210.0605,"elapsed_within_degrees":10.0605},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.7931},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.088,"elongation":47.328},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.088,"opposition_distance":132.672}},"eclipse_window_40days":[]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"06:09","sunsetLocal":"18:03","solarNoonLocal":"12:06","dayLengthHours":11.897712368002447,"dayLengthDisplay":"11 Hours 53 Mins 52 Secs","nightLengthDisplay":"12 Hours 06 Mins 08 Secs","moonriseLocal":"10:12","moonsetLocal":"20:42","rahuKala":{"name":"Rāhu Kāla","start":"09:07","end":"10:37","startHours":9.121602504889646,"endHours":10.608816550889951,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:35","end":"15:04","startHours":13.583244642890563,"endHours":15.07045868889087,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:09","end":"07:38","startHours":6.147174412889035,"endHours":7.63438845888934,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:19","startHours":8.923307298756272,"endHours":9.319897711023021,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:58","startHours":6.64291242822247,"endHours":6.960184758035869,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:30","startHours":11.69944018462351,"endHours":12.492621009157007,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:34","end":"05:21","startHours":4.5608127638220415,"endHours":5.3539935883555385,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:09","end":"06:09","startHours":5.155698382222164,"endHours":6.147174412889035,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:52","startHours":14.078982658224,"endHours":14.872163482757497,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:51","end":"18:15","startHours":17.844886780891482,"endHours":18.24488678089148,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:03","end":"18:32","startHours":18.04488678089148,"endHours":18.540624796224918,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:48","end":"19:33","startHours":17.79488678089148,"endHours":19.54488678089148,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:30","startHours":23.699440184623512,"endHours":24.492621009157006,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:09","end":"07:38","startHours":6.147174412889035,"endHours":7.63438845888934,"quality":"inauspicious"},{"name":"Śubha","start":"07:38","end":"09:07","startHours":7.63438845888934,"endHours":9.121602504889646,"quality":"auspicious"},{"name":"Roga","start":"09:07","end":"10:37","startHours":9.121602504889646,"endHours":10.608816550889951,"quality":"inauspicious"},{"name":"Udveg","start":"10:37","end":"12:06","startHours":10.608816550889951,"endHours":12.096030596890259,"quality":"inauspicious"},{"name":"Chala","start":"12:06","end":"13:35","startHours":12.096030596890259,"endHours":13.583244642890563,"quality":"neutral"},{"name":"Labha","start":"13:35","end":"15:04","startHours":13.583244642890563,"endHours":15.07045868889087,"quality":"auspicious"},{"name":"Amṛta","start":"15:04","end":"16:33","startHours":15.07045868889087,"endHours":16.557672734891177,"quality":"auspicious"},{"name":"Kāla","start":"16:33","end":"18:03","startHours":16.557672734891177,"endHours":18.04488678089148,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:03","end":"19:33","startHours":18.04488678089148,"endHours":19.557672734891174,"quality":"auspicious"},{"name":"Amṛta","start":"19:33","end":"21:04","startHours":19.557672734891174,"endHours":21.07045868889087,"quality":"auspicious"},{"name":"Kāla","start":"21:04","end":"22:35","startHours":21.07045868889087,"endHours":22.583244642890563,"quality":"inauspicious"},{"name":"Śubha","start":"22:35","end":"00:06","startHours":22.583244642890563,"endHours":24.09603059689026,"quality":"auspicious"},{"name":"Roga","start":"00:06","end":"01:37","startHours":24.09603059689026,"endHours":25.60881655088995,"quality":"inauspicious"},{"name":"Udveg","start":"01:37","end":"03:07","startHours":25.60881655088995,"endHours":27.121602504889644,"quality":"inauspicious"},{"name":"Chala","start":"03:07","end":"04:38","startHours":27.121602504889644,"endHours":28.63438845888934,"quality":"neutral"},{"name":"Labha","start":"04:38","end":"06:09","startHours":28.63438845888934,"endHours":30.147174412889036,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.147174412889035,"endHours":7.147174412889035,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.147174412889035,"endHours":8.147174412889035,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.147174412889035,"endHours":9.147174412889035,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.147174412889035,"endHours":10.147174412889035,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.147174412889035,"endHours":11.147174412889035,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.147174412889035,"endHours":12.147174412889035,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.147174412889035,"endHours":13.147174412889035,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.147174412889035,"endHours":14.147174412889035,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.147174412889035,"endHours":15.147174412889035,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.147174412889035,"endHours":16.147174412889036,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.147174412889036,"endHours":17.147174412889036,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.147174412889036,"endHours":18.147174412889036,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.147174412889036,"endHours":19.147174412889036,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.147174412889036,"endHours":20.147174412889036,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.147174412889036,"endHours":21.147174412889036,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.147174412889036,"endHours":22.147174412889036,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.147174412889036,"endHours":23.147174412889036,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.147174412889036,"endHours":24.147174412889036,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.147174412889036,"endHours":25.147174412889036,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.147174412889036,"endHours":26.147174412889036,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.147174412889036,"endHours":27.147174412889036,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.147174412889036,"endHours":28.147174412889036,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.147174412889036,"endHours":29.147174412889036,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.147174412889036,"endHours":30.147174412889036,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva 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":"Maitra","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":-2.985205729076377,"eotMinutes":11.167764186584405,"ayanamsa":24.0171}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Caturthī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"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},{"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":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"rishikesh"},"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, 2011 CE · Ṛṣikeśa · Vidhyamitra","description":"October 1, 2011 CE for Ṛṣikeśa: Śukla Caturthī, sūryodaya 06:09, sūryāsta 18:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2011-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2011-10-01","sa":"https://sa.vidhyamitra.com/city/rishikesh/2011-10-01","hi":"https://hi.vidhyamitra.com/city/rishikesh/2011-10-01","x-default":"https://vidhyamitra.com/city/rishikesh/2011-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T05:34:55.640Z","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":"2026-05-16T05:34:55.640Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T05:34:55.640Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}