{"id":"vidhyamitra:city-day:cuttack:1981-10-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/cuttack/1981-10-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-10-13","date_display":"October 13, 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":10,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444890.770833,"kali_year":5083,"ahargana":1856425.2708,"sun":{"sidereal_longitude":175.33,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":347.6514,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":172.3214,"elapsed_within_tithi_degrees":4.3214},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":347.6514,"elapsed_within_degrees":0.9847},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":162.9814},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"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":10,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444890.770833,"ahargana":1856425.2708,"kali_year":5083,"ayanamsa_lahiri":23.5985,"grahas":{"sun":{"sidereal_longitude":176.02325099999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":349.220351,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false,"latitude":-4.228},"mars":{"sidereal_longitude":121.91015099999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":187.91995099999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":177.26345100000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":221.24575099999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":169.769951,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":97.6554,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":277.6554,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara 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":1981,"month":10,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444890.770833,"kali_year":5083,"ahargana":1856425.2708,"sun":{"sidereal_longitude":175.33,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":347.6514,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":172.3214,"elapsed_within_tithi_degrees":4.3214},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":347.6514,"elapsed_within_degrees":0.9847},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":162.9814},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.228,"elongation":172.321},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.228,"opposition_distance":7.679}},"eclipse_window_40days":[]},"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":"05:40","sunsetLocal":"17:24","solarNoonLocal":"11:32","dayLengthHours":11.73539087437841,"dayLengthDisplay":"11 Hours 44 Mins 07 Secs","nightLengthDisplay":"12 Hours 15 Mins 53 Secs","moonriseLocal":"16:55","moonsetLocal":"05:15","rahuKala":{"name":"Rāhu Kāla","start":"14:28","end":"15:56","startHours":14.46762056512668,"endHours":15.934544424423983,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:36","end":"10:04","startHours":8.599925127937475,"endHours":10.066848987234778,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:32","end":"13:00","startHours":11.533772846532077,"endHours":13.00069670582938,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:24","end":"08:48","startHours":8.40433528003117,"endHours":8.795514975843783,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:09","end":"06:28","startHours":6.15505202910864,"endHours":6.467995785758731,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:09","end":"11:55","startHours":11.142593150719463,"endHours":11.924952542344691,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:06","end":"04:53","startHours":4.101358626092418,"endHours":4.883718017717646,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:41","end":"05:40","startHours":4.688128169811339,"endHours":5.666077409342873,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:29","end":"14:16","startHours":13.489671325595147,"endHours":14.272030717220375,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:12","end":"17:36","startHours":17.201468283721283,"endHours":17.60146828372128,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:24","end":"17:53","startHours":17.401468283721282,"endHours":17.89044290348705,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:09","end":"18:54","startHours":17.151468283721282,"endHours":18.901468283721282,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:09","end":"23:55","startHours":23.142593150719463,"endHours":23.92495254234469,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:40","end":"07:08","startHours":5.666077409342873,"endHours":7.133001268640174,"quality":"inauspicious"},{"name":"Udveg","start":"07:08","end":"08:36","startHours":7.133001268640174,"endHours":8.599925127937475,"quality":"inauspicious"},{"name":"Chala","start":"08:36","end":"10:04","startHours":8.599925127937475,"endHours":10.066848987234778,"quality":"neutral"},{"name":"Labha","start":"10:04","end":"11:32","startHours":10.066848987234778,"endHours":11.533772846532077,"quality":"auspicious"},{"name":"Amṛta","start":"11:32","end":"13:00","startHours":11.533772846532077,"endHours":13.00069670582938,"quality":"auspicious"},{"name":"Kāla","start":"13:00","end":"14:28","startHours":13.00069670582938,"endHours":14.46762056512668,"quality":"inauspicious"},{"name":"Śubha","start":"14:28","end":"15:56","startHours":14.46762056512668,"endHours":15.934544424423983,"quality":"auspicious"},{"name":"Roga","start":"15:56","end":"17:24","startHours":15.934544424423983,"endHours":17.401468283721282,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:24","end":"18:56","startHours":17.401468283721282,"endHours":18.934544424423983,"quality":"inauspicious"},{"name":"Śubha","start":"18:56","end":"20:28","startHours":18.934544424423983,"endHours":20.46762056512668,"quality":"auspicious"},{"name":"Roga","start":"20:28","end":"22:00","startHours":20.46762056512668,"endHours":22.000696705829377,"quality":"inauspicious"},{"name":"Udveg","start":"22:00","end":"23:32","startHours":22.000696705829377,"endHours":23.533772846532077,"quality":"inauspicious"},{"name":"Chala","start":"23:32","end":"01:04","startHours":23.533772846532077,"endHours":25.066848987234778,"quality":"neutral"},{"name":"Labha","start":"01:04","end":"02:36","startHours":25.066848987234778,"endHours":26.599925127937475,"quality":"auspicious"},{"name":"Amṛta","start":"02:36","end":"04:08","startHours":26.599925127937475,"endHours":28.13300126864017,"quality":"auspicious"},{"name":"Kāla","start":"04:08","end":"05:40","startHours":28.13300126864017,"endHours":29.666077409342872,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:40","end":"06:40","startHours":5.666077409342873,"endHours":6.666077409342873,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:40","end":"07:40","startHours":6.666077409342873,"endHours":7.666077409342873,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:40","end":"08:40","startHours":7.666077409342873,"endHours":8.666077409342872,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:40","end":"09:40","startHours":8.666077409342872,"endHours":9.666077409342872,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:40","end":"10:40","startHours":9.666077409342872,"endHours":10.666077409342872,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:40","end":"11:40","startHours":10.666077409342872,"endHours":11.666077409342872,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:40","end":"12:40","startHours":11.666077409342872,"endHours":12.666077409342872,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:40","end":"13:40","startHours":12.666077409342872,"endHours":13.666077409342872,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:40","end":"14:40","startHours":13.666077409342872,"endHours":14.666077409342872,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:40","end":"15:40","startHours":14.666077409342872,"endHours":15.666077409342872,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:40","end":"16:40","startHours":15.666077409342872,"endHours":16.666077409342872,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:40","end":"17:40","startHours":16.666077409342872,"endHours":17.666077409342872,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:40","end":"18:40","startHours":17.666077409342872,"endHours":18.666077409342872,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:40","end":"19:40","startHours":18.666077409342872,"endHours":19.666077409342872,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:40","end":"20:40","startHours":19.666077409342872,"endHours":20.666077409342872,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:40","end":"21:40","startHours":20.666077409342872,"endHours":21.666077409342872,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:40","end":"22:40","startHours":21.666077409342872,"endHours":22.666077409342872,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:40","end":"23:40","startHours":22.666077409342872,"endHours":23.666077409342872,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:40","end":"00:40","startHours":23.666077409342872,"endHours":24.666077409342872,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:40","end":"01:40","startHours":24.666077409342872,"endHours":25.666077409342872,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:40","end":"02:40","startHours":25.666077409342872,"endHours":26.666077409342872,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:40","end":"03:40","startHours":26.666077409342872,"endHours":27.666077409342872,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:40","end":"04:40","startHours":27.666077409342872,"endHours":28.666077409342872,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:40","end":"05:40","startHours":28.666077409342872,"endHours":29.666077409342872,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-7.675487670972242,"eotMinutes":14.442429208075392,"ayanamsa":23.5985}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"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 Pūrṇimā · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"sharad-purnima","name":"Śarad Pūrṇimā / Kojāgarī Pūrṇimā","name_sanskrit":"शरद पूर्णिमा","tradition":"Vaishnava","associated_deity":"Krishna + Lakṣmī","significance":"Krishna's Mahā-rāsa with the gopīs at Vṛndāvana. Lakṣmī wakes (\"ko jāgartti?\")","vrata":true,"primary_observance":"Night-long jāgaraṇa; offering of pāyasa under moonlight","detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":2,"sources":["Bhāgavata 10.29-33"]},{"id":"rasa-purnima","name":"Rāsa Pūrṇimā (Vraja Mahā-Rāsa)","name_sanskrit":"रास पूर्णिमा","tradition":"Vaishnava","associated_deity":"Krishna + Gopīs","significance":"Krishna's Mahā-rāsa with the gopīs at Vraja (Bhāgavata 10.29-33). Same as Śarad Pūrṇimā but emphasized in Vraja tradition.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":2},{"id":"valmiki-jayanti","name":"Mahārṣi Vālmīki Jayantī","name_sanskrit":"महर्षि वाल्मीकि जयन्ती","tradition":"Pan-Hindu","associated_deity":"Maharṣi Vālmīki (ādi-kavi)","significance":"Composer of Vālmīki Rāmāyaṇa. Āśvina Pūrṇimā tradition.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":3}],"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":[{"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 October 13, 1981 CE · Cuttack, Odisha · Vidhyamitra","description":"October 13, 1981 CE for Cuttack, Odisha: Śukla Pūrṇimā, sūryodaya 05:40, sūryāsta 17:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/cuttack/1981-10-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/cuttack/1981-10-13","sa":"https://sa.vidhyamitra.com/city/cuttack/1981-10-13","hi":"https://hi.vidhyamitra.com/city/cuttack/1981-10-13","x-default":"https://vidhyamitra.com/city/cuttack/1981-10-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T02:30:43.821Z","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":"2026-05-31T02:30:43.821Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T02:30:43.821Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}