{"id":"vidhyamitra:city-day:cuttack:1981-02-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/cuttack/1981-02-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-02-18","date_display":"February 18, 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":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444653.770833,"kali_year":5082,"ahargana":1856188.2708,"sun":{"sidereal_longitude":305.8723,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":116.4402,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":170.5678,"elapsed_within_tithi_degrees":2.5678},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":116.4402,"elapsed_within_degrees":9.7735},"yoga":{"number":5,"name":"Śobhana","sum_longitude":62.3125},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444653.770833,"ahargana":1856188.2708,"kali_year":5082,"ayanamsa_lahiri":23.5894,"grahas":{"sun":{"sidereal_longitude":305.714206,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":114.87140599999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":0.4876},"mars":{"sidereal_longitude":315.464706,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":304.8019059999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":165.94220599999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":293.952906,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":165.17950599999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":110.2128,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":290.2128,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444653.770833,"kali_year":5082,"ahargana":1856188.2708,"sun":{"sidereal_longitude":305.8723,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":116.4402,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":170.5678,"elapsed_within_tithi_degrees":2.5678},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":116.4402,"elapsed_within_degrees":9.7735},"yoga":{"number":5,"name":"Śobhana","sum_longitude":62.3125},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.488,"elongation":170.568},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.488,"opposition_distance":9.432}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"city":{"slug":"cuttack","name":"Cuttack, Odisha","lat":20.4625,"lon":85.8828,"tz_offset_hours":5.5,"state":"Odisha","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"cuttack","name":"Cuttack, Odisha","lat":20.4625,"lon":85.8828,"tz_offset_hours":5.5,"state":"Odisha","country":"IN","tier":"tier-1"},"sunriseLocal":"06:15","sunsetLocal":"17:47","solarNoonLocal":"12:01","dayLengthHours":11.529681325030861,"dayLengthDisplay":"11 Hours 31 Mins 47 Secs","nightLengthDisplay":"12 Hours 28 Mins 13 Secs","moonriseLocal":"16:52","moonsetLocal":"05:44","rahuKala":{"name":"Rāhu Kāla","start":"12:01","end":"13:27","startHours":12.01506127020667,"endHours":13.456271435835529,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:41","end":"09:08","startHours":7.691430773320098,"endHours":9.132640938948956,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:34","end":"12:01","startHours":10.573851104577813,"endHours":12.01506127020667,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:19","startHours":8.940479583531774,"endHours":9.324802294366137,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:02","startHours":6.7306239962341925,"endHours":7.038082164901682,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:24","startHours":11.63073855937231,"endHours":12.399383981041032,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:43","end":"05:29","startHours":4.712929764353792,"endHours":5.481575186022516,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:17","end":"06:15","startHours":5.289413830605335,"endHours":6.25022060769124,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:42","startHours":13.936674824378482,"endHours":14.705320246047206,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:35","end":"17:59","startHours":17.5799019327221,"endHours":17.9799019327221,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:47","end":"18:16","startHours":17.7799019327221,"endHours":18.260305321265054,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:32","end":"19:17","startHours":17.5299019327221,"endHours":19.2799019327221,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:24","startHours":23.63073855937231,"endHours":24.399383981041034,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:15","end":"07:41","startHours":6.25022060769124,"endHours":7.691430773320098,"quality":"auspicious"},{"name":"Amṛta","start":"07:41","end":"09:08","startHours":7.691430773320098,"endHours":9.132640938948956,"quality":"auspicious"},{"name":"Kāla","start":"09:08","end":"10:34","startHours":9.132640938948956,"endHours":10.573851104577813,"quality":"inauspicious"},{"name":"Śubha","start":"10:34","end":"12:01","startHours":10.573851104577813,"endHours":12.01506127020667,"quality":"auspicious"},{"name":"Roga","start":"12:01","end":"13:27","startHours":12.01506127020667,"endHours":13.456271435835529,"quality":"inauspicious"},{"name":"Udveg","start":"13:27","end":"14:54","startHours":13.456271435835529,"endHours":14.897481601464385,"quality":"inauspicious"},{"name":"Chala","start":"14:54","end":"16:20","startHours":14.897481601464385,"endHours":16.338691767093245,"quality":"neutral"},{"name":"Labha","start":"16:20","end":"17:47","startHours":16.338691767093245,"endHours":17.7799019327221,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:47","end":"19:20","startHours":17.7799019327221,"endHours":19.338691767093245,"quality":"inauspicious"},{"name":"Chala","start":"19:20","end":"20:54","startHours":19.338691767093245,"endHours":20.897481601464385,"quality":"neutral"},{"name":"Labha","start":"20:54","end":"22:27","startHours":20.897481601464385,"endHours":22.45627143583553,"quality":"auspicious"},{"name":"Amṛta","start":"22:27","end":"00:01","startHours":22.45627143583553,"endHours":24.015061270206672,"quality":"auspicious"},{"name":"Kāla","start":"00:01","end":"01:34","startHours":24.015061270206672,"endHours":25.573851104577813,"quality":"inauspicious"},{"name":"Śubha","start":"01:34","end":"03:08","startHours":25.573851104577813,"endHours":27.132640938948956,"quality":"auspicious"},{"name":"Roga","start":"03:08","end":"04:41","startHours":27.132640938948956,"endHours":28.6914307733201,"quality":"inauspicious"},{"name":"Udveg","start":"04:41","end":"06:15","startHours":28.6914307733201,"endHours":30.25022060769124,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:15","end":"07:15","startHours":6.25022060769124,"endHours":7.25022060769124,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:15","end":"08:15","startHours":7.25022060769124,"endHours":8.25022060769124,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:15","end":"09:15","startHours":8.25022060769124,"endHours":9.25022060769124,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:15","end":"10:15","startHours":9.25022060769124,"endHours":10.25022060769124,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:15","end":"11:15","startHours":10.25022060769124,"endHours":11.25022060769124,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:15","end":"12:15","startHours":11.25022060769124,"endHours":12.25022060769124,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:15","end":"13:15","startHours":12.25022060769124,"endHours":13.25022060769124,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:15","end":"14:15","startHours":13.25022060769124,"endHours":14.25022060769124,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:15","end":"15:15","startHours":14.25022060769124,"endHours":15.25022060769124,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:15","end":"16:15","startHours":15.25022060769124,"endHours":16.25022060769124,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:15","end":"17:15","startHours":16.25022060769124,"endHours":17.25022060769124,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:15","end":"18:15","startHours":17.25022060769124,"endHours":18.25022060769124,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:15","end":"19:15","startHours":18.25022060769124,"endHours":19.25022060769124,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:15","end":"20:15","startHours":19.25022060769124,"endHours":20.25022060769124,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:15","end":"21:15","startHours":20.25022060769124,"endHours":21.25022060769124,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:15","end":"22:15","startHours":21.25022060769124,"endHours":22.25022060769124,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:15","end":"23:15","startHours":22.25022060769124,"endHours":23.25022060769124,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:15","end":"00:15","startHours":23.25022060769124,"endHours":24.25022060769124,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:15","end":"01:15","startHours":24.25022060769124,"endHours":25.25022060769124,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:15","end":"02:15","startHours":25.25022060769124,"endHours":26.25022060769124,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:15","end":"03:15","startHours":26.25022060769124,"endHours":27.25022060769124,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:15","end":"04:15","startHours":27.25022060769124,"endHours":28.25022060769124,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:15","end":"05:15","startHours":28.25022060769124,"endHours":29.25022060769124,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:15","end":"06:15","startHours":29.25022060769124,"endHours":30.25022060769124,"planetary_lord":"Sun"}],"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":"South-West","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.71466756566742,"eotMinutes":-14.434876212400278,"ayanamsa":23.5894}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pūrṇimā · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"magha-purnima","name":"Māghī Pūrṇimā","name_sanskrit":"माघी पूर्णिमा","tradition":"Pan-Hindu","significance":"Sacred snāna at Prayāga; Māgha-snāna culmination.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"cuttack"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 18, 1981 CE · Cuttack, Odisha · Vidhyamitra","description":"February 18, 1981 CE for Cuttack, Odisha: Śukla Pūrṇimā, sūryodaya 06:15, sūryāsta 17:47.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/cuttack/1981-02-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/cuttack/1981-02-18","sa":"https://sa.vidhyamitra.com/city/cuttack/1981-02-18","hi":"https://hi.vidhyamitra.com/city/cuttack/1981-02-18","x-default":"https://vidhyamitra.com/city/cuttack/1981-02-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:03:48.697Z","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":"2026-05-31T18:03:48.697Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:03:48.697Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}