{"id":"vidhyamitra:city-day:erode:1981-08-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1981-08-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-08-01","date_display":"August 1, 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":8,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444817.770833,"kali_year":5083,"ahargana":1856352.2708,"sun":{"sidereal_longitude":104.627,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":117.5905,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":12.9636,"elapsed_within_tithi_degrees":0.9636},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":117.5905,"elapsed_within_degrees":10.9239},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":222.2175},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":8,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444817.770833,"ahargana":1856352.2708,"kali_year":5083,"ayanamsa_lahiri":23.5957,"grahas":{"sun":{"sidereal_longitude":105.11993999999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"moon":{"sidereal_longitude":116.32963999999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":1.2443},"mars":{"sidereal_longitude":75.81474000000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":95.20774,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":162.80593999999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"venus":{"sidereal_longitude":135.66664000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":161.67894,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":101.5233,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":281.5233,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"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":8,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444817.770833,"kali_year":5083,"ahargana":1856352.2708,"sun":{"sidereal_longitude":104.627,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":117.5905,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":12.9636,"elapsed_within_tithi_degrees":0.9636},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":117.5905,"elapsed_within_degrees":10.9239},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":222.2175},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.244,"elongation":12.964},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.244,"opposition_distance":167.036}},"eclipse_window_40days":[{"offset_days":-15,"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128},{"offset_days":-1,"type":"solar","occurs":true,"moon_latitude":0.181,"elongation":0.207}]},"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":"06:07","sunsetLocal":"18:44","solarNoonLocal":"12:25","dayLengthHours":12.620027215739222,"dayLengthDisplay":"12 Hours 37 Mins 12 Secs","nightLengthDisplay":"11 Hours 22 Mins 48 Secs","moonriseLocal":"06:55","moonsetLocal":"19:25","rahuKala":{"name":"Rāhu Kāla","start":"09:16","end":"10:50","startHours":9.264141027177033,"endHours":10.841644429144436,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:00","end":"15:34","startHours":13.996651233079241,"endHours":15.574154635046645,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:07","end":"07:41","startHours":6.109134223242227,"endHours":7.68663762520963,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:03","end":"09:28","startHours":9.053807240248046,"endHours":9.47447481410602,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:58","startHours":6.634968690564695,"endHours":6.971502749651075,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:50","startHours":11.998480257253865,"endHours":12.839815404969814,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:26","end":"05:16","startHours":4.426463927810331,"endHours":5.26779907552628,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:03","end":"06:07","startHours":5.057465288597292,"endHours":6.109134223242227,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:22","startHours":14.52248570040171,"endHours":15.363820848117658,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:32","end":"18:56","startHours":18.52916143898145,"endHours":18.92916143898145,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:44","end":"19:15","startHours":18.72916143898145,"endHours":19.254995906303918,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:29","end":"20:14","startHours":18.47916143898145,"endHours":20.22916143898145,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:50","startHours":23.998480257253867,"endHours":24.839815404969812,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:07","end":"07:41","startHours":6.109134223242227,"endHours":7.68663762520963,"quality":"inauspicious"},{"name":"Śubha","start":"07:41","end":"09:16","startHours":7.68663762520963,"endHours":9.264141027177033,"quality":"auspicious"},{"name":"Roga","start":"09:16","end":"10:50","startHours":9.264141027177033,"endHours":10.841644429144436,"quality":"inauspicious"},{"name":"Udveg","start":"10:50","end":"12:25","startHours":10.841644429144436,"endHours":12.41914783111184,"quality":"inauspicious"},{"name":"Chala","start":"12:25","end":"14:00","startHours":12.41914783111184,"endHours":13.996651233079241,"quality":"neutral"},{"name":"Labha","start":"14:00","end":"15:34","startHours":13.996651233079241,"endHours":15.574154635046645,"quality":"auspicious"},{"name":"Amṛta","start":"15:34","end":"17:09","startHours":15.574154635046645,"endHours":17.151658037014045,"quality":"auspicious"},{"name":"Kāla","start":"17:09","end":"18:44","startHours":17.151658037014045,"endHours":18.72916143898145,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:44","end":"20:09","startHours":18.72916143898145,"endHours":20.151658037014048,"quality":"auspicious"},{"name":"Amṛta","start":"20:09","end":"21:34","startHours":20.151658037014048,"endHours":21.574154635046643,"quality":"auspicious"},{"name":"Kāla","start":"21:34","end":"23:00","startHours":21.574154635046643,"endHours":22.99665123307924,"quality":"inauspicious"},{"name":"Śubha","start":"23:00","end":"00:25","startHours":22.99665123307924,"endHours":24.41914783111184,"quality":"auspicious"},{"name":"Roga","start":"00:25","end":"01:50","startHours":24.41914783111184,"endHours":25.841644429144438,"quality":"inauspicious"},{"name":"Udveg","start":"01:50","end":"03:16","startHours":25.841644429144438,"endHours":27.264141027177033,"quality":"inauspicious"},{"name":"Chala","start":"03:16","end":"04:41","startHours":27.264141027177033,"endHours":28.68663762520963,"quality":"neutral"},{"name":"Labha","start":"04:41","end":"06:07","startHours":28.68663762520963,"endHours":30.10913422324223,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:07","end":"07:07","startHours":6.109134223242227,"endHours":7.109134223242227,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:07","end":"08:07","startHours":7.109134223242227,"endHours":8.109134223242227,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:07","end":"09:07","startHours":8.109134223242227,"endHours":9.109134223242227,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:07","end":"10:07","startHours":9.109134223242227,"endHours":10.109134223242227,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:07","end":"11:07","startHours":10.109134223242227,"endHours":11.109134223242227,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:07","end":"12:07","startHours":11.109134223242227,"endHours":12.109134223242227,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:07","end":"13:07","startHours":12.109134223242227,"endHours":13.109134223242227,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:07","end":"14:07","startHours":13.109134223242227,"endHours":14.109134223242227,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:07","end":"15:07","startHours":14.109134223242227,"endHours":15.109134223242227,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:07","end":"16:07","startHours":15.109134223242227,"endHours":16.10913422324223,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:07","end":"17:07","startHours":16.10913422324223,"endHours":17.10913422324223,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:07","end":"18:07","startHours":17.10913422324223,"endHours":18.10913422324223,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:07","end":"19:07","startHours":18.10913422324223,"endHours":19.10913422324223,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:07","end":"20:07","startHours":19.10913422324223,"endHours":20.10913422324223,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:07","end":"21:07","startHours":20.10913422324223,"endHours":21.10913422324223,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:07","end":"22:07","startHours":21.10913422324223,"endHours":22.10913422324223,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:07","end":"23:07","startHours":22.10913422324223,"endHours":23.10913422324223,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:07","end":"00:07","startHours":23.10913422324223,"endHours":24.10913422324223,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:07","end":"01:07","startHours":24.10913422324223,"endHours":25.10913422324223,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:07","end":"02:07","startHours":25.10913422324223,"endHours":26.10913422324223,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:07","end":"03:07","startHours":26.10913422324223,"endHours":27.10913422324223,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:07","end":"04:07","startHours":27.10913422324223,"endHours":28.10913422324223,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:07","end":"05:07","startHours":28.10913422324223,"endHours":29.10913422324223,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:07","end":"06:07","startHours":29.10913422324223,"endHours":30.10913422324223,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.07939698973757,"eotMinutes":-6.017669866710306,"ayanamsa":23.5957}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Dvitīyā · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 August 1, 1981 CE · Erode, Tamil Nadu · Vidhyamitra","description":"August 1, 1981 CE for Erode, Tamil Nadu: Śukla Dvitīyā, sūryodaya 06:07, sūryāsta 18:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1981-08-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1981-08-01","sa":"https://sa.vidhyamitra.com/city/erode/1981-08-01","hi":"https://hi.vidhyamitra.com/city/erode/1981-08-01","x-default":"https://vidhyamitra.com/city/erode/1981-08-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T17:28:24.082Z","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":"2026-05-18T17:28:24.082Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T17:28:24.082Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}