{"id":"vidhyamitra:day:2391-10-01:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2391-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2391-10-01","date_display":"October 1, 2391 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":2391,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2594627.770833,"kali_year":5493,"ahargana":2006162.2708,"sun":{"sidereal_longitude":156.5291,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":182.0819,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":25.5528,"elapsed_within_tithi_degrees":1.5528},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.0819,"elapsed_within_degrees":8.7486},"yoga":{"number":26,"name":"Indra","sum_longitude":338.6111},"karana":{"half_tithi_index":4,"name":"Taitila"},"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":2391,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2594627.770833,"ahargana":2006162.2708,"kali_year":5493,"ayanamsa_lahiri":29.3254,"grahas":{"sun":{"sidereal_longitude":158.22619699999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":185.50709700000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false,"latitude":4.4537},"mars":{"sidereal_longitude":103.37429700000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":134.98219700000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":25.56859700000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":119.330897,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":136.70709699999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":83.8686,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":263.8686,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2391,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2594627.770833,"kali_year":5493,"ahargana":2006162.2708,"sun":{"sidereal_longitude":156.5291,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":182.0819,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":25.5528,"elapsed_within_tithi_degrees":1.5528},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.0819,"elapsed_within_degrees":8.7486},"yoga":{"number":26,"name":"Indra","sum_longitude":338.6111},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.454,"elongation":25.553},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.454,"opposition_distance":154.447}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2448,"vikram_samvatsara":"Raktākṣī","saka_samvat":2313,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1798,"malayalam_era":1567,"nanakshahi_year":922,"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":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Tṛtīyā · Vikram 2448 Raktākṣī · Śaka 2313 Virodhakṛt"},"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,"valid_from":"2391-10-01T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga October 1, 2391 CE · Vidhyamitra","description":"Vedic pañchāṅga for October 1, 2391 CE: Śukla Tṛtīyā · Citrā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2391-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2391-10-01","sa":"https://sa.vidhyamitra.com/day/2391-10-01","hi":"https://hi.vidhyamitra.com/day/2391-10-01","x-default":"https://vidhyamitra.com/day/2391-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-12T01:39:12.490Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-12T01:39:12.490Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}