{"id":"vidhyamitra:city-day:ranchi:1998-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/1998-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-10-18","date_display":"October 18, 1998 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":1998,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451104.770833,"kali_year":5100,"ahargana":1862639.2708,"sun":{"sidereal_longitude":179.8997,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":153.3075,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":333.4078,"elapsed_within_tithi_degrees":9.4078},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":153.3075,"elapsed_within_degrees":6.6409},"yoga":{"number":25,"name":"Brahma","sum_longitude":333.2072},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1998,"month":10,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451104.770833,"ahargana":1862639.2708,"kali_year":5100,"ayanamsa_lahiri":23.8362,"grahas":{"sun":{"sidereal_longitude":180.62543000000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":154.66752999999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":1.893},"mars":{"sidereal_longitude":132.57423,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":195.25392999999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":325.49433,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":177.55033000000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":6.706430000000012,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":128.4078,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":308.4078,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":1998,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451104.770833,"kali_year":5100,"ahargana":1862639.2708,"sun":{"sidereal_longitude":179.8997,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":153.3075,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":333.4078,"elapsed_within_tithi_degrees":9.4078},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":153.3075,"elapsed_within_degrees":6.6409},"yoga":{"number":25,"name":"Brahma","sum_longitude":333.2072},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.893,"elongation":26.592},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.893,"opposition_distance":153.408}},"eclipse_window_40days":[]},"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"sunriseLocal":"05:46","sunsetLocal":"17:21","solarNoonLocal":"11:33","dayLengthHours":11.571894194717402,"dayLengthDisplay":"11 Hours 34 Mins 19 Secs","nightLengthDisplay":"12 Hours 25 Mins 41 Secs","moonriseLocal":"03:46","moonsetLocal":"15:53","rahuKala":{"name":"Rāhu Kāla","start":"15:54","end":"17:21","startHours":15.895559352965385,"endHours":17.34204612730506,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:33","end":"13:00","startHours":11.55609902994636,"endHours":13.002585804286035,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:27","end":"15:54","startHours":14.44907257862571,"endHours":15.895559352965385,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:28","end":"08:51","startHours":8.470260578021719,"endHours":8.8559903845123,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:15","end":"06:34","startHours":6.252314190700884,"endHours":6.560898035893348,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:10","end":"11:57","startHours":11.17036922345578,"endHours":11.94182883643694,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:14","end":"05:00","startHours":4.227232706625339,"endHours":4.998692319606499,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:46","startHours":4.8058274163612085,"endHours":5.770151932587659,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:29","end":"14:15","startHours":13.484748062399259,"endHours":14.256207675380418,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:09","end":"17:33","startHours":17.14204612730506,"endHours":17.54204612730506,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:21","end":"17:49","startHours":17.34204612730506,"endHours":17.824208385418284,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:06","end":"18:51","startHours":17.09204612730506,"endHours":18.84204612730506,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:10","end":"23:57","startHours":23.17036922345578,"endHours":23.94182883643694,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:46","end":"07:13","startHours":5.770151932587659,"endHours":7.216638706927334,"quality":"inauspicious"},{"name":"Chala","start":"07:13","end":"08:40","startHours":7.216638706927334,"endHours":8.66312548126701,"quality":"neutral"},{"name":"Labha","start":"08:40","end":"10:07","startHours":8.66312548126701,"endHours":10.109612255606685,"quality":"auspicious"},{"name":"Amṛta","start":"10:07","end":"11:33","startHours":10.109612255606685,"endHours":11.55609902994636,"quality":"auspicious"},{"name":"Kāla","start":"11:33","end":"13:00","startHours":11.55609902994636,"endHours":13.002585804286035,"quality":"inauspicious"},{"name":"Śubha","start":"13:00","end":"14:27","startHours":13.002585804286035,"endHours":14.44907257862571,"quality":"auspicious"},{"name":"Roga","start":"14:27","end":"15:54","startHours":14.44907257862571,"endHours":15.895559352965385,"quality":"inauspicious"},{"name":"Udveg","start":"15:54","end":"17:21","startHours":15.895559352965385,"endHours":17.34204612730506,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:21","end":"18:54","startHours":17.34204612730506,"endHours":18.895559352965385,"quality":"auspicious"},{"name":"Roga","start":"18:54","end":"20:27","startHours":18.895559352965385,"endHours":20.44907257862571,"quality":"inauspicious"},{"name":"Udveg","start":"20:27","end":"22:00","startHours":20.44907257862571,"endHours":22.002585804286035,"quality":"inauspicious"},{"name":"Chala","start":"22:00","end":"23:33","startHours":22.002585804286035,"endHours":23.55609902994636,"quality":"neutral"},{"name":"Labha","start":"23:33","end":"01:07","startHours":23.55609902994636,"endHours":25.109612255606685,"quality":"auspicious"},{"name":"Amṛta","start":"01:07","end":"02:40","startHours":25.109612255606685,"endHours":26.66312548126701,"quality":"auspicious"},{"name":"Kāla","start":"02:40","end":"04:13","startHours":26.66312548126701,"endHours":28.216638706927334,"quality":"inauspicious"},{"name":"Śubha","start":"04:13","end":"05:46","startHours":28.216638706927334,"endHours":29.77015193258766,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:46","end":"06:46","startHours":5.770151932587659,"endHours":6.770151932587659,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:46","end":"07:46","startHours":6.770151932587659,"endHours":7.770151932587659,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:46","end":"08:46","startHours":7.770151932587659,"endHours":8.770151932587659,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:46","end":"09:46","startHours":8.770151932587659,"endHours":9.770151932587659,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:46","end":"10:46","startHours":9.770151932587659,"endHours":10.770151932587659,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:46","end":"11:46","startHours":10.770151932587659,"endHours":11.770151932587659,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:46","end":"12:46","startHours":11.770151932587659,"endHours":12.770151932587659,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:46","end":"13:46","startHours":12.770151932587659,"endHours":13.770151932587659,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:46","end":"14:46","startHours":13.770151932587659,"endHours":14.770151932587659,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:46","end":"15:46","startHours":14.770151932587659,"endHours":15.770151932587659,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:46","end":"16:46","startHours":15.770151932587659,"endHours":16.77015193258766,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:46","end":"17:46","startHours":16.77015193258766,"endHours":17.77015193258766,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:46","end":"18:46","startHours":17.77015193258766,"endHours":18.77015193258766,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:46","end":"19:46","startHours":18.77015193258766,"endHours":19.77015193258766,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:46","end":"20:46","startHours":19.77015193258766,"endHours":20.77015193258766,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:46","end":"21:46","startHours":20.77015193258766,"endHours":21.77015193258766,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:46","end":"22:46","startHours":21.77015193258766,"endHours":22.77015193258766,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:46","end":"23:46","startHours":22.77015193258766,"endHours":23.77015193258766,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:46","end":"00:46","startHours":23.77015193258766,"endHours":24.77015193258766,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:46","end":"01:46","startHours":24.77015193258766,"endHours":25.77015193258766,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:46","end":"02:46","startHours":25.77015193258766,"endHours":26.77015193258766,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:46","end":"03:46","startHours":26.77015193258766,"endHours":27.77015193258766,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:46","end":"04:46","startHours":27.77015193258766,"endHours":28.77015193258766,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:46","end":"05:46","startHours":28.77015193258766,"endHours":29.77015193258766,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-9.479490994801816,"eotMinutes":15.395658203218455,"ayanamsa":23.8362}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Trayodaśī · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[{"id":"dhanteras","name":"Dhanteras (Dhanvantari Jayantī)","name_sanskrit":"धनतेरस / धन्वन्तरि जयन्ती","tradition":"Pan-Hindu","associated_deity":"Dhanvantari (Āyurveda-deva, avatāra of Viṣṇu)","significance":"Birth of Dhanvantari from samudra-mathana with amṛta-kalaśa. Day 1 of Diwali.","vrata":true,"detection":{"tithi_number":28,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2,"sources":["Bhāgavata 8.8.32-34"]},{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi_ingress":"Tulā"},"precedence":5},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"ranchi"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 18, 1998 CE · Ranchi, Jharkhand · Vidhyamitra","description":"October 18, 1998 CE for Ranchi, Jharkhand: Kṛṣṇa Trayodaśī, sūryodaya 05:46, sūryāsta 17:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/1998-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/1998-10-18","sa":"https://sa.vidhyamitra.com/city/ranchi/1998-10-18","hi":"https://hi.vidhyamitra.com/city/ranchi/1998-10-18","x-default":"https://vidhyamitra.com/city/ranchi/1998-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T05:10:22.525Z","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":"2026-06-02T05:10:22.525Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T05:10:22.525Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}