{"id":"vidhyamitra:city-day:erode:1981-12-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1981-12-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-12-22","date_display":"December 22, 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":12,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444960.770833,"kali_year":5083,"ahargana":1856495.2708,"sun":{"sidereal_longitude":246.224,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":196.5045,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":310.2805,"elapsed_within_tithi_degrees":10.2805},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.5045,"elapsed_within_degrees":9.8378},"yoga":{"number":7,"name":"Sukarma","sum_longitude":82.7286},"karana":{"half_tithi_index":51,"name":"Bālava"},"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":1981,"month":12,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444960.770833,"ahargana":1856495.2708,"kali_year":5083,"ayanamsa_lahiri":23.6012,"grahas":{"sun":{"sidereal_longitude":246.503376,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":199.098976,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false,"latitude":4.3921},"mars":{"sidereal_longitude":159.38797599999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":253.23487599999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":191.34517600000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":283.72107600000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":176.95697599999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":93.9465,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":273.9465,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":12,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444960.770833,"kali_year":5083,"ahargana":1856495.2708,"sun":{"sidereal_longitude":246.224,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":196.5045,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":310.2805,"elapsed_within_tithi_degrees":10.2805},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.5045,"elapsed_within_degrees":9.8378},"yoga":{"number":7,"name":"Sukarma","sum_longitude":82.7286},"karana":{"half_tithi_index":51,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.392,"elongation":49.72},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.392,"opposition_distance":130.28}},"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":"06:34","sunsetLocal":"18:02","solarNoonLocal":"12:18","dayLengthHours":11.4588089321608,"dayLengthDisplay":"11 Hours 27 Mins 32 Secs","nightLengthDisplay":"12 Hours 32 Mins 28 Secs","moonriseLocal":"03:19","moonsetLocal":"14:58","rahuKala":{"name":"Rāhu Kāla","start":"15:10","end":"16:36","startHours":15.168338781381527,"endHours":16.600689897901628,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:26","end":"10:52","startHours":9.438934315301127,"endHours":10.871285431821228,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:18","end":"13:44","startHours":12.303636548341327,"endHours":13.735987664861426,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:15","end":"09:38","startHours":9.24795416643178,"endHours":9.629914464170474,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:03","end":"07:21","startHours":7.051682454434294,"endHours":7.357250692625249,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:41","startHours":11.921676250602633,"endHours":12.68559684608002,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:03","end":"05:49","startHours":5.046390891306154,"endHours":5.81031148678354,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:37","end":"06:34","startHours":5.619331337914194,"endHours":6.574232082260927,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"14:59","startHours":14.213438037034795,"endHours":14.977358632512182,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.833041014421728,"endHours":18.233041014421726,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:31","startHours":18.033041014421727,"endHours":18.510491386595092,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.783041014421727,"endHours":19.533041014421727,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:41","startHours":23.921676250602633,"endHours":24.68559684608002,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:34","end":"08:00","startHours":6.574232082260927,"endHours":8.006583198781026,"quality":"inauspicious"},{"name":"Udveg","start":"08:00","end":"09:26","startHours":8.006583198781026,"endHours":9.438934315301127,"quality":"inauspicious"},{"name":"Chala","start":"09:26","end":"10:52","startHours":9.438934315301127,"endHours":10.871285431821228,"quality":"neutral"},{"name":"Labha","start":"10:52","end":"12:18","startHours":10.871285431821228,"endHours":12.303636548341327,"quality":"auspicious"},{"name":"Amṛta","start":"12:18","end":"13:44","startHours":12.303636548341327,"endHours":13.735987664861426,"quality":"auspicious"},{"name":"Kāla","start":"13:44","end":"15:10","startHours":13.735987664861426,"endHours":15.168338781381527,"quality":"inauspicious"},{"name":"Śubha","start":"15:10","end":"16:36","startHours":15.168338781381527,"endHours":16.600689897901628,"quality":"auspicious"},{"name":"Roga","start":"16:36","end":"18:02","startHours":16.600689897901628,"endHours":18.033041014421727,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:02","end":"19:36","startHours":18.033041014421727,"endHours":19.600689897901628,"quality":"inauspicious"},{"name":"Śubha","start":"19:36","end":"21:10","startHours":19.600689897901628,"endHours":21.16833878138153,"quality":"auspicious"},{"name":"Roga","start":"21:10","end":"22:44","startHours":21.16833878138153,"endHours":22.735987664861426,"quality":"inauspicious"},{"name":"Udveg","start":"22:44","end":"00:18","startHours":22.735987664861426,"endHours":24.303636548341327,"quality":"inauspicious"},{"name":"Chala","start":"00:18","end":"01:52","startHours":24.303636548341327,"endHours":25.871285431821228,"quality":"neutral"},{"name":"Labha","start":"01:52","end":"03:26","startHours":25.871285431821228,"endHours":27.438934315301125,"quality":"auspicious"},{"name":"Amṛta","start":"03:26","end":"05:00","startHours":27.438934315301125,"endHours":29.006583198781026,"quality":"auspicious"},{"name":"Kāla","start":"05:00","end":"06:34","startHours":29.006583198781026,"endHours":30.574232082260927,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:34","end":"07:34","startHours":6.574232082260927,"endHours":7.574232082260927,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:34","end":"08:34","startHours":7.574232082260927,"endHours":8.574232082260927,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:34","end":"09:34","startHours":8.574232082260927,"endHours":9.574232082260927,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:34","end":"10:34","startHours":9.574232082260927,"endHours":10.574232082260927,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:34","end":"11:34","startHours":10.574232082260927,"endHours":11.574232082260927,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:34","end":"12:34","startHours":11.574232082260927,"endHours":12.574232082260927,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:34","end":"13:34","startHours":12.574232082260927,"endHours":13.574232082260927,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:34","end":"14:34","startHours":13.574232082260927,"endHours":14.574232082260927,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:34","end":"15:34","startHours":14.574232082260927,"endHours":15.574232082260927,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:34","end":"16:34","startHours":15.574232082260927,"endHours":16.574232082260927,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:34","end":"17:34","startHours":16.574232082260927,"endHours":17.574232082260927,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:34","end":"18:34","startHours":17.574232082260927,"endHours":18.574232082260927,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:34","end":"19:34","startHours":18.574232082260927,"endHours":19.574232082260927,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:34","end":"20:34","startHours":19.574232082260927,"endHours":20.574232082260927,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:34","end":"21:34","startHours":20.574232082260927,"endHours":21.574232082260927,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:34","end":"22:34","startHours":21.574232082260927,"endHours":22.574232082260927,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:34","end":"23:34","startHours":22.574232082260927,"endHours":23.574232082260927,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:34","end":"00:34","startHours":23.574232082260927,"endHours":24.574232082260927,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:34","end":"01:34","startHours":24.574232082260927,"endHours":25.574232082260927,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:34","end":"02:34","startHours":25.574232082260927,"endHours":26.574232082260927,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:34","end":"03:34","startHours":26.574232082260927,"endHours":27.574232082260927,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:34","end":"04:34","startHours":27.574232082260927,"endHours":28.574232082260927,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:34","end":"05:34","startHours":28.574232082260927,"endHours":29.574232082260927,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:34","end":"06:34","startHours":29.574232082260927,"endHours":30.574232082260927,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"North","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.43645862904753,"eotMinutes":0.9130070995203906,"ayanamsa":23.6012}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Ekādaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"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":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"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,"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 December 22, 1981 CE · Erode, Tamil Nadu · Vidhyamitra","description":"December 22, 1981 CE for Erode, Tamil Nadu: Kṛṣṇa Ekādaśī, sūryodaya 06:34, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1981-12-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1981-12-22","sa":"https://sa.vidhyamitra.com/city/erode/1981-12-22","hi":"https://hi.vidhyamitra.com/city/erode/1981-12-22","x-default":"https://vidhyamitra.com/city/erode/1981-12-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T00:41:52.517Z","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":"2026-05-19T00:41:52.517Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T00:41:52.517Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}