{"id":"vidhyamitra:city-day:erode:1981-03-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1981-03-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-03-16","date_display":"March 16, 1981 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":1981,"month":3,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444679.770833,"kali_year":5082,"ahargana":1856214.2708,"sun":{"sidereal_longitude":332.0021,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":97.4588,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":125.4567,"elapsed_within_tithi_degrees":5.4567},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.4588,"elapsed_within_degrees":4.1255},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":69.4609},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1981,"month":3,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444679.770833,"ahargana":1856214.2708,"kali_year":5082,"ayanamsa_lahiri":23.5904,"grahas":{"sun":{"sidereal_longitude":331.78091300000006,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":98.527513,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false,"latitude":-0.8868},"mars":{"sidereal_longitude":335.846913,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":304.469113,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":163.280713,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"venus":{"sidereal_longitude":326.415213,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":163.49541299999999,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":108.8352,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":288.8352,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"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":1981,"month":3,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444679.770833,"kali_year":5082,"ahargana":1856214.2708,"sun":{"sidereal_longitude":332.0021,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":97.4588,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":125.4567,"elapsed_within_tithi_degrees":5.4567},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.4588,"elapsed_within_degrees":4.1255},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":69.4609},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.887,"elongation":125.457},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.887,"opposition_distance":54.543}},"eclipse_window_40days":[]},"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:27","sunsetLocal":"18:30","solarNoonLocal":"12:28","dayLengthHours":12.064130645084418,"dayLengthDisplay":"12 Hours 03 Mins 51 Secs","nightLengthDisplay":"11 Hours 56 Mins 09 Secs","moonriseLocal":"14:36","moonsetLocal":"03:14","rahuKala":{"name":"Rāhu Kāla","start":"07:57","end":"09:28","startHours":7.950797677117773,"endHours":9.458814007753325,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:58","end":"12:28","startHours":10.966830338388878,"endHours":12.47484666902443,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:59","end":"15:29","startHours":13.982862999659982,"endHours":15.490879330295535,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:15","end":"09:40","startHours":9.257745163668584,"endHours":9.659882851838066,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:57","end":"07:16","startHours":6.9454534566940715,"endHours":7.267163607229656,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:53","startHours":12.07270898085495,"endHours":12.87698435719391,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:50","end":"05:38","startHours":4.834230593804298,"endHours":5.638505970143259,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:26","end":"06:27","startHours":5.437437126058519,"endHours":6.442781346482221,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:17","startHours":14.485535109871833,"endHours":15.289810486210794,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:18","end":"18:42","startHours":18.30691199156664,"endHours":18.70691199156664,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:30","end":"19:01","startHours":18.50691199156664,"endHours":19.00958410177849,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:15","end":"20:00","startHours":18.25691199156664,"endHours":20.00691199156664,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:53","startHours":24.072708980854948,"endHours":24.876984357193912,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:27","end":"07:57","startHours":6.442781346482221,"endHours":7.950797677117773,"quality":"auspicious"},{"name":"Kāla","start":"07:57","end":"09:28","startHours":7.950797677117773,"endHours":9.458814007753325,"quality":"inauspicious"},{"name":"Śubha","start":"09:28","end":"10:58","startHours":9.458814007753325,"endHours":10.966830338388878,"quality":"auspicious"},{"name":"Roga","start":"10:58","end":"12:28","startHours":10.966830338388878,"endHours":12.47484666902443,"quality":"inauspicious"},{"name":"Udveg","start":"12:28","end":"13:59","startHours":12.47484666902443,"endHours":13.982862999659982,"quality":"inauspicious"},{"name":"Chala","start":"13:59","end":"15:29","startHours":13.982862999659982,"endHours":15.490879330295535,"quality":"neutral"},{"name":"Labha","start":"15:29","end":"17:00","startHours":15.490879330295535,"endHours":16.998895660931087,"quality":"auspicious"},{"name":"Amṛta","start":"17:00","end":"18:30","startHours":16.998895660931087,"endHours":18.50691199156664,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:30","end":"20:00","startHours":18.50691199156664,"endHours":19.998895660931087,"quality":"neutral"},{"name":"Labha","start":"20:00","end":"21:29","startHours":19.998895660931087,"endHours":21.490879330295535,"quality":"auspicious"},{"name":"Amṛta","start":"21:29","end":"22:59","startHours":21.490879330295535,"endHours":22.982862999659982,"quality":"auspicious"},{"name":"Kāla","start":"22:59","end":"00:28","startHours":22.982862999659982,"endHours":24.47484666902443,"quality":"inauspicious"},{"name":"Śubha","start":"00:28","end":"01:58","startHours":24.47484666902443,"endHours":25.966830338388878,"quality":"auspicious"},{"name":"Roga","start":"01:58","end":"03:28","startHours":25.966830338388878,"endHours":27.458814007753325,"quality":"inauspicious"},{"name":"Udveg","start":"03:28","end":"04:57","startHours":27.458814007753325,"endHours":28.950797677117773,"quality":"inauspicious"},{"name":"Chala","start":"04:57","end":"06:27","startHours":28.950797677117773,"endHours":30.44278134648222,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:27","end":"07:27","startHours":6.442781346482221,"endHours":7.442781346482221,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:27","end":"08:27","startHours":7.442781346482221,"endHours":8.44278134648222,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:27","end":"09:27","startHours":8.44278134648222,"endHours":9.44278134648222,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:27","end":"10:27","startHours":9.44278134648222,"endHours":10.44278134648222,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:27","end":"11:27","startHours":10.44278134648222,"endHours":11.44278134648222,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:27","end":"12:27","startHours":11.44278134648222,"endHours":12.44278134648222,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:27","end":"13:27","startHours":12.44278134648222,"endHours":13.44278134648222,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:27","end":"14:27","startHours":13.44278134648222,"endHours":14.44278134648222,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:27","end":"15:27","startHours":14.44278134648222,"endHours":15.44278134648222,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:27","end":"16:27","startHours":15.44278134648222,"endHours":16.44278134648222,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:27","end":"17:27","startHours":16.44278134648222,"endHours":17.44278134648222,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:27","end":"18:27","startHours":17.44278134648222,"endHours":18.44278134648222,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:27","end":"19:27","startHours":18.44278134648222,"endHours":19.44278134648222,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:27","end":"20:27","startHours":19.44278134648222,"endHours":20.44278134648222,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:27","end":"21:27","startHours":20.44278134648222,"endHours":21.44278134648222,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:27","end":"22:27","startHours":21.44278134648222,"endHours":22.44278134648222,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:27","end":"23:27","startHours":22.44278134648222,"endHours":23.44278134648222,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:27","end":"00:27","startHours":23.44278134648222,"endHours":24.44278134648222,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:27","end":"01:27","startHours":24.44278134648222,"endHours":25.44278134648222,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:27","end":"02:27","startHours":25.44278134648222,"endHours":26.44278134648222,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:27","end":"03:27","startHours":26.44278134648222,"endHours":27.44278134648222,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:27","end":"04:27","startHours":27.44278134648222,"endHours":28.44278134648222,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:27","end":"05:27","startHours":28.44278134648222,"endHours":29.44278134648222,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:27","end":"06:27","startHours":29.44278134648222,"endHours":30.44278134648222,"planetary_lord":"Venus"}],"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","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"drikRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-1.8392931354523092,"eotMinutes":-9.359600141465874,"ayanamsa":23.5904}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Ekādaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"kamada-ekadashi","name":"Kāmadā Ekādaśī","name_sanskrit":"कामदा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Fulfills righteous desires; removes brahma-hatyā.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5},{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi":"Mīna"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"erode"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga March 16, 1981 CE · Erode, Tamil Nadu · Vidhyamitra","description":"March 16, 1981 CE for Erode, Tamil Nadu: Śukla Ekādaśī, sūryodaya 06:27, sūryāsta 18:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1981-03-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1981-03-16","sa":"https://sa.vidhyamitra.com/city/erode/1981-03-16","hi":"https://hi.vidhyamitra.com/city/erode/1981-03-16","x-default":"https://vidhyamitra.com/city/erode/1981-03-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T14:48:14.243Z","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":"2026-05-18T14:48:14.243Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T14:48:14.243Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}