{"id":"vidhyamitra:city-day:erode:1998-09-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1998-09-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-09-17","date_display":"September 17, 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":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451073.770833,"kali_year":5100,"ahargana":1862608.2708,"sun":{"sidereal_longitude":149.3972,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":106.7078,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":317.3107,"elapsed_within_tithi_degrees":5.3107},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":106.7078,"elapsed_within_degrees":0.0412},"yoga":{"number":20,"name":"Śiva","sum_longitude":256.105},"karana":{"half_tithi_index":52,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":9,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451073.770833,"ahargana":1862608.2708,"kali_year":5100,"ayanamsa_lahiri":23.835,"grahas":{"sun":{"sidereal_longitude":150.124615,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":108.57291499999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false,"latitude":-1.7815},"mars":{"sidereal_longitude":113.50231500000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":142.461115,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":329.10071500000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":138.905715,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":8.847915,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":130.0503,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":310.0503,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"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":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451073.770833,"kali_year":5100,"ahargana":1862608.2708,"sun":{"sidereal_longitude":149.3972,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":106.7078,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":317.3107,"elapsed_within_tithi_degrees":5.3107},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":106.7078,"elapsed_within_degrees":0.0412},"yoga":{"number":20,"name":"Śiva","sum_longitude":256.105},"karana":{"half_tithi_index":52,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.781,"elongation":42.689},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.781,"opposition_distance":137.311}},"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":"06:08","sunsetLocal":"18:18","solarNoonLocal":"12:13","dayLengthHours":12.177573342282685,"dayLengthDisplay":"12 Hours 10 Mins 39 Secs","nightLengthDisplay":"11 Hours 49 Mins 21 Secs","moonriseLocal":"03:10","moonsetLocal":"15:43","rahuKala":{"name":"Rāhu Kāla","start":"13:44","end":"15:16","startHours":13.737057271862536,"endHours":15.259253939647873,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:08","end":"07:39","startHours":6.126073932935859,"endHours":7.648270600721195,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:10","end":"10:42","startHours":9.170467268506531,"endHours":10.692663936291865,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:58","end":"09:22","startHours":8.967507712801819,"endHours":9.373426824211242,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.633472822197637,"endHours":6.958208111325176,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:37","startHours":11.80894149266778,"endHours":12.620779715486625,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:30","end":"05:19","startHours":4.502397487298168,"endHours":5.314235710117013,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:08","startHours":5.111276154412302,"endHours":6.126073932935859,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"15:03","startHours":14.244456161124315,"endHours":15.056294383943161,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:06","end":"18:30","startHours":18.103647275218545,"endHours":18.503647275218544,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:18","end":"18:49","startHours":18.303647275218545,"endHours":18.811046164480324,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:03","end":"19:48","startHours":18.053647275218545,"endHours":19.803647275218545,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:37","startHours":23.80894149266778,"endHours":24.620779715486623,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:08","end":"07:39","startHours":6.126073932935859,"endHours":7.648270600721195,"quality":"auspicious"},{"name":"Roga","start":"07:39","end":"09:10","startHours":7.648270600721195,"endHours":9.170467268506531,"quality":"inauspicious"},{"name":"Udveg","start":"09:10","end":"10:42","startHours":9.170467268506531,"endHours":10.692663936291865,"quality":"inauspicious"},{"name":"Chala","start":"10:42","end":"12:13","startHours":10.692663936291865,"endHours":12.214860604077202,"quality":"neutral"},{"name":"Labha","start":"12:13","end":"13:44","startHours":12.214860604077202,"endHours":13.737057271862536,"quality":"auspicious"},{"name":"Amṛta","start":"13:44","end":"15:16","startHours":13.737057271862536,"endHours":15.259253939647873,"quality":"auspicious"},{"name":"Kāla","start":"15:16","end":"16:47","startHours":15.259253939647873,"endHours":16.781450607433207,"quality":"inauspicious"},{"name":"Śubha","start":"16:47","end":"18:18","startHours":16.781450607433207,"endHours":18.303647275218545,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:18","end":"19:47","startHours":18.303647275218545,"endHours":19.781450607433207,"quality":"auspicious"},{"name":"Kāla","start":"19:47","end":"21:16","startHours":19.781450607433207,"endHours":21.259253939647873,"quality":"inauspicious"},{"name":"Śubha","start":"21:16","end":"22:44","startHours":21.259253939647873,"endHours":22.73705727186254,"quality":"auspicious"},{"name":"Roga","start":"22:44","end":"00:13","startHours":22.73705727186254,"endHours":24.214860604077202,"quality":"inauspicious"},{"name":"Udveg","start":"00:13","end":"01:42","startHours":24.214860604077202,"endHours":25.692663936291865,"quality":"inauspicious"},{"name":"Chala","start":"01:42","end":"03:10","startHours":25.692663936291865,"endHours":27.17046726850653,"quality":"neutral"},{"name":"Labha","start":"03:10","end":"04:39","startHours":27.17046726850653,"endHours":28.648270600721197,"quality":"auspicious"},{"name":"Amṛta","start":"04:39","end":"06:08","startHours":28.648270600721197,"endHours":30.12607393293586,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.126073932935859,"endHours":7.126073932935859,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.126073932935859,"endHours":8.12607393293586,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.12607393293586,"endHours":9.12607393293586,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.12607393293586,"endHours":10.12607393293586,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.12607393293586,"endHours":11.12607393293586,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.12607393293586,"endHours":12.12607393293586,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.12607393293586,"endHours":13.12607393293586,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.12607393293586,"endHours":14.12607393293586,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.12607393293586,"endHours":15.12607393293586,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.12607393293586,"endHours":16.12607393293586,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.12607393293586,"endHours":17.12607393293586,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.12607393293586,"endHours":18.12607393293586,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.12607393293586,"endHours":19.12607393293586,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.12607393293586,"endHours":20.12607393293586,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.12607393293586,"endHours":21.12607393293586,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.12607393293586,"endHours":22.12607393293586,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.12607393293586,"endHours":23.12607393293586,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.12607393293586,"endHours":24.12607393293586,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.12607393293586,"endHours":25.12607393293586,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.12607393293586,"endHours":26.12607393293586,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.12607393293586,"endHours":27.12607393293586,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.12607393293586,"endHours":28.12607393293586,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.12607393293586,"endHours":29.12607393293586,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.12607393293586,"endHours":30.12607393293586,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":2.398710020205051,"eotMinutes":6.239563755367786,"ayanamsa":23.835}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Dvādaśī · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 September 17, 1998 CE · Erode, Tamil Nadu · Vidhyamitra","description":"September 17, 1998 CE for Erode, Tamil Nadu: Kṛṣṇa Dvādaśī, sūryodaya 06:08, sūryāsta 18:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1998-09-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1998-09-17","sa":"https://sa.vidhyamitra.com/city/erode/1998-09-17","hi":"https://hi.vidhyamitra.com/city/erode/1998-09-17","x-default":"https://vidhyamitra.com/city/erode/1998-09-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T11:12:50.426Z","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":"2026-05-17T11:12:50.426Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T11:12:50.426Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}