{"id":"vidhyamitra:city-day:boston:2001-05-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/boston/2001-05-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-05-01","date_display":"May 1, 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":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452030.770833,"kali_year":5103,"ahargana":1863565.2708,"sun":{"sidereal_longitude":16.9318,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":112.0165,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":95.0847,"elapsed_within_tithi_degrees":11.0847},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":112.0165,"elapsed_within_degrees":5.3498},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":128.9483},"karana":{"half_tithi_index":15,"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":5,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452030.770833,"ahargana":1863565.2708,"kali_year":5103,"ayanamsa_lahiri":23.8716,"grahas":{"sun":{"sidereal_longitude":16.874649999999974,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":111.18615,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false,"latitude":2.4275},"mars":{"sidereal_longitude":244.44775000000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":25.65274999999997,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":49.57864999999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":339.72795,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":37.30775,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":79.3438,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":259.3438,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2001,"month":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452030.770833,"kali_year":5103,"ahargana":1863565.2708,"sun":{"sidereal_longitude":16.9318,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":112.0165,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":95.0847,"elapsed_within_tithi_degrees":11.0847},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":112.0165,"elapsed_within_degrees":5.3498},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":128.9483},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.428,"elongation":95.085},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.428,"opposition_distance":84.915}},"eclipse_window_40days":[]},"city":{"slug":"boston","name":"Boston, USA","lat":42.3601,"lon":-71.0589,"tz_offset_hours":-5,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"boston","name":"Boston, USA","lat":42.3601,"lon":-71.0589,"tz_offset_hours":-5,"country":"US","tier":"diaspora"},"sunriseLocal":"04:40","sunsetLocal":"18:43","solarNoonLocal":"11:41","dayLengthHours":14.052864096713385,"dayLengthDisplay":"14 Hours 03 Mins 10 Secs","nightLengthDisplay":"9 Hours 56 Mins 50 Secs","moonriseLocal":"10:53","moonsetLocal":"01:04","rahuKala":{"name":"Rāhu Kāla","start":"15:12","end":"16:58","startHours":15.201842568695568,"endHours":16.95845058078474,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:11","end":"09:56","startHours":8.175410520338875,"endHours":9.932018532428048,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:41","end":"13:27","startHours":11.68862654451722,"endHours":13.445234556606394,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"07:56","end":"08:25","startHours":7.941196118726985,"endHours":8.409624921950764,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:15","end":"05:37","startHours":5.247730500190253,"endHours":5.622473542769276,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:13","end":"12:09","startHours":11.22019774129344,"endHours":12.157055347741,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"02:47","end":"03:44","startHours":2.78847928326541,"endHours":3.725336889712969,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:29","end":"04:40","startHours":3.4911224881010794,"endHours":4.662194496160528,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:58","startHours":14.030770560636117,"endHours":14.967628167083676,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:31","end":"18:55","startHours":18.515058592873913,"endHours":18.915058592873912,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:43","end":"19:18","startHours":18.715058592873913,"endHours":19.300594596903636,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:28","end":"20:13","startHours":18.465058592873913,"endHours":20.215058592873913,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:13","end":"00:09","startHours":23.22019774129344,"endHours":24.157055347741,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"04:40","end":"06:25","startHours":4.662194496160528,"endHours":6.418802508249701,"quality":"inauspicious"},{"name":"Udveg","start":"06:25","end":"08:11","startHours":6.418802508249701,"endHours":8.175410520338875,"quality":"inauspicious"},{"name":"Chala","start":"08:11","end":"09:56","startHours":8.175410520338875,"endHours":9.932018532428048,"quality":"neutral"},{"name":"Labha","start":"09:56","end":"11:41","startHours":9.932018532428048,"endHours":11.68862654451722,"quality":"auspicious"},{"name":"Amṛta","start":"11:41","end":"13:27","startHours":11.68862654451722,"endHours":13.445234556606394,"quality":"auspicious"},{"name":"Kāla","start":"13:27","end":"15:12","startHours":13.445234556606394,"endHours":15.201842568695568,"quality":"inauspicious"},{"name":"Śubha","start":"15:12","end":"16:58","startHours":15.201842568695568,"endHours":16.95845058078474,"quality":"auspicious"},{"name":"Roga","start":"16:58","end":"18:43","startHours":16.95845058078474,"endHours":18.715058592873913,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:43","end":"19:58","startHours":18.715058592873913,"endHours":19.95845058078474,"quality":"inauspicious"},{"name":"Śubha","start":"19:58","end":"21:12","startHours":19.95845058078474,"endHours":21.201842568695568,"quality":"auspicious"},{"name":"Roga","start":"21:12","end":"22:27","startHours":21.201842568695568,"endHours":22.445234556606394,"quality":"inauspicious"},{"name":"Udveg","start":"22:27","end":"23:41","startHours":22.445234556606394,"endHours":23.68862654451722,"quality":"inauspicious"},{"name":"Chala","start":"23:41","end":"00:56","startHours":23.68862654451722,"endHours":24.932018532428046,"quality":"neutral"},{"name":"Labha","start":"00:56","end":"02:11","startHours":24.932018532428046,"endHours":26.175410520338872,"quality":"auspicious"},{"name":"Amṛta","start":"02:11","end":"03:25","startHours":26.175410520338872,"endHours":27.4188025082497,"quality":"auspicious"},{"name":"Kāla","start":"03:25","end":"04:40","startHours":27.4188025082497,"endHours":28.662194496160527,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"04:40","end":"05:40","startHours":4.662194496160528,"endHours":5.662194496160528,"planetary_lord":"Mars"},{"name":"Hora 2","start":"05:40","end":"06:40","startHours":5.662194496160528,"endHours":6.662194496160528,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"06:40","end":"07:40","startHours":6.662194496160528,"endHours":7.662194496160528,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"07:40","end":"08:40","startHours":7.662194496160528,"endHours":8.662194496160527,"planetary_lord":"Moon"},{"name":"Hora 5","start":"08:40","end":"09:40","startHours":8.662194496160527,"endHours":9.662194496160527,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"09:40","end":"10:40","startHours":9.662194496160527,"endHours":10.662194496160527,"planetary_lord":"Venus"},{"name":"Hora 7","start":"10:40","end":"11:40","startHours":10.662194496160527,"endHours":11.662194496160527,"planetary_lord":"Sun"},{"name":"Hora 8","start":"11:40","end":"12:40","startHours":11.662194496160527,"endHours":12.662194496160527,"planetary_lord":"Mars"},{"name":"Hora 9","start":"12:40","end":"13:40","startHours":12.662194496160527,"endHours":13.662194496160527,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"13:40","end":"14:40","startHours":13.662194496160527,"endHours":14.662194496160527,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"14:40","end":"15:40","startHours":14.662194496160527,"endHours":15.662194496160527,"planetary_lord":"Moon"},{"name":"Hora 12","start":"15:40","end":"16:40","startHours":15.662194496160527,"endHours":16.662194496160527,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"16:40","end":"17:40","startHours":16.662194496160527,"endHours":17.662194496160527,"planetary_lord":"Venus"},{"name":"Hora 14","start":"17:40","end":"18:40","startHours":17.662194496160527,"endHours":18.662194496160527,"planetary_lord":"Sun"},{"name":"Hora 15","start":"18:40","end":"19:40","startHours":18.662194496160527,"endHours":19.662194496160527,"planetary_lord":"Mars"},{"name":"Hora 16","start":"19:40","end":"20:40","startHours":19.662194496160527,"endHours":20.662194496160527,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"20:40","end":"21:40","startHours":20.662194496160527,"endHours":21.662194496160527,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"21:40","end":"22:40","startHours":21.662194496160527,"endHours":22.662194496160527,"planetary_lord":"Moon"},{"name":"Hora 19","start":"22:40","end":"23:40","startHours":22.662194496160527,"endHours":23.662194496160527,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"23:40","end":"00:40","startHours":23.662194496160527,"endHours":24.662194496160527,"planetary_lord":"Venus"},{"name":"Hora 21","start":"00:40","end":"01:40","startHours":24.662194496160527,"endHours":25.662194496160527,"planetary_lord":"Sun"},{"name":"Hora 22","start":"01:40","end":"02:40","startHours":25.662194496160527,"endHours":26.662194496160527,"planetary_lord":"Mars"},{"name":"Hora 23","start":"02:40","end":"03:40","startHours":26.662194496160527,"endHours":27.662194496160527,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"03:40","end":"04:40","startHours":27.662194496160527,"endHours":28.662194496160527,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":15.046567501874614,"eotMinutes":2.918007328966811,"ayanamsa":23.8716}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Aṣṭamī · 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":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"boston"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 1, 2001 CE · Boston, USA · Vidhyamitra","description":"May 1, 2001 CE for Boston, USA: Śukla Aṣṭamī, sūryodaya 04:40, sūryāsta 18:43.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/boston/2001-05-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/boston/2001-05-01","sa":"https://sa.vidhyamitra.com/city/boston/2001-05-01","hi":"https://hi.vidhyamitra.com/city/boston/2001-05-01","x-default":"https://vidhyamitra.com/city/boston/2001-05-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T12:26:41.666Z","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":"2026-05-31T12:26:41.666Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T12:26:41.666Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}