{"id":"vidhyamitra:city-day:erode:1990-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1990-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-10-01","date_display":"October 1, 1990 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":1990,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448165.770833,"kali_year":5092,"ahargana":1859700.2708,"sun":{"sidereal_longitude":163.159,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":299.3269,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":136.1679,"elapsed_within_tithi_degrees":4.1679},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.3269,"elapsed_within_degrees":5.9936},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.4859},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1990,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448165.770833,"ahargana":1859700.2708,"kali_year":5092,"ayanamsa_lahiri":23.7238,"grahas":{"sun":{"sidereal_longitude":163.88222199999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":299.23062200000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false,"latitude":1.1785},"mars":{"sidereal_longitude":48.28622200000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":148.589222,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":104.554822,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"venus":{"sidereal_longitude":155.84472200000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":264.854522,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":284.1301,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":104.1301,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":1990,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448165.770833,"kali_year":5092,"ahargana":1859700.2708,"sun":{"sidereal_longitude":163.159,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":299.3269,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":136.1679,"elapsed_within_tithi_degrees":4.1679},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.3269,"elapsed_within_degrees":5.9936},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.4859},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.178,"elongation":136.168},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.178,"opposition_distance":43.832}},"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":"06:07","sunsetLocal":"18:09","solarNoonLocal":"12:08","dayLengthHours":12.03265884729971,"dayLengthDisplay":"12 Hours 01 Mins 58 Secs","nightLengthDisplay":"11 Hours 58 Mins 02 Secs","moonriseLocal":"15:18","moonsetLocal":"03:00","rahuKala":{"name":"Rāhu Kāla","start":"07:37","end":"09:07","startHours":7.6204768624862025,"endHours":9.124559218398666,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:38","end":"12:08","startHours":10.62864157431113,"endHours":12.132723930223595,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:38","end":"15:08","startHours":13.636806286136057,"endHours":15.140888642048521,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:20","startHours":8.924014904277005,"endHours":9.325103532520329,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:56","startHours":6.617755291877893,"endHours":6.938626194472552,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:32","startHours":11.731635301980269,"endHours":12.533812558466916,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:19","startHours":4.512039993600444,"endHours":5.314217250087092,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:07","startHours":5.11367293596543,"endHours":6.116394506573739,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:56","startHours":14.138167071440211,"endHours":14.940344327926859,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.94905335387345,"endHours":18.349053353873447,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:39","startHours":18.149053353873448,"endHours":18.650414139177602,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.899053353873448,"endHours":19.649053353873448,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:32","startHours":23.73163530198027,"endHours":24.533812558466913,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:07","end":"07:37","startHours":6.116394506573739,"endHours":7.6204768624862025,"quality":"auspicious"},{"name":"Kāla","start":"07:37","end":"09:07","startHours":7.6204768624862025,"endHours":9.124559218398666,"quality":"inauspicious"},{"name":"Śubha","start":"09:07","end":"10:38","startHours":9.124559218398666,"endHours":10.62864157431113,"quality":"auspicious"},{"name":"Roga","start":"10:38","end":"12:08","startHours":10.62864157431113,"endHours":12.132723930223595,"quality":"inauspicious"},{"name":"Udveg","start":"12:08","end":"13:38","startHours":12.132723930223595,"endHours":13.636806286136057,"quality":"inauspicious"},{"name":"Chala","start":"13:38","end":"15:08","startHours":13.636806286136057,"endHours":15.140888642048521,"quality":"neutral"},{"name":"Labha","start":"15:08","end":"16:39","startHours":15.140888642048521,"endHours":16.644970997960982,"quality":"auspicious"},{"name":"Amṛta","start":"16:39","end":"18:09","startHours":16.644970997960982,"endHours":18.149053353873448,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:09","end":"19:39","startHours":18.149053353873448,"endHours":19.644970997960986,"quality":"neutral"},{"name":"Labha","start":"19:39","end":"21:08","startHours":19.644970997960986,"endHours":21.14088864204852,"quality":"auspicious"},{"name":"Amṛta","start":"21:08","end":"22:38","startHours":21.14088864204852,"endHours":22.636806286136057,"quality":"auspicious"},{"name":"Kāla","start":"22:38","end":"00:08","startHours":22.636806286136057,"endHours":24.132723930223595,"quality":"inauspicious"},{"name":"Śubha","start":"00:08","end":"01:38","startHours":24.132723930223595,"endHours":25.628641574311132,"quality":"auspicious"},{"name":"Roga","start":"01:38","end":"03:07","startHours":25.628641574311132,"endHours":27.124559218398666,"quality":"inauspicious"},{"name":"Udveg","start":"03:07","end":"04:37","startHours":27.124559218398666,"endHours":28.620476862486203,"quality":"inauspicious"},{"name":"Chala","start":"04:37","end":"06:07","startHours":28.620476862486203,"endHours":30.11639450657374,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:07","end":"07:07","startHours":6.116394506573739,"endHours":7.116394506573739,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:07","end":"08:07","startHours":7.116394506573739,"endHours":8.116394506573739,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:07","end":"09:07","startHours":8.116394506573739,"endHours":9.116394506573739,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:07","end":"10:07","startHours":9.116394506573739,"endHours":10.116394506573739,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:07","end":"11:07","startHours":10.116394506573739,"endHours":11.116394506573739,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:07","end":"12:07","startHours":11.116394506573739,"endHours":12.116394506573739,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:07","end":"13:07","startHours":12.116394506573739,"endHours":13.116394506573739,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:07","end":"14:07","startHours":13.116394506573739,"endHours":14.116394506573739,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:07","end":"15:07","startHours":14.116394506573739,"endHours":15.116394506573739,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:07","end":"16:07","startHours":15.116394506573739,"endHours":16.11639450657374,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:07","end":"17:07","startHours":16.11639450657374,"endHours":17.11639450657374,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:07","end":"18:07","startHours":17.11639450657374,"endHours":18.11639450657374,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:07","end":"19:07","startHours":18.11639450657374,"endHours":19.11639450657374,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:07","end":"20:07","startHours":19.11639450657374,"endHours":20.11639450657374,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:07","end":"21:07","startHours":20.11639450657374,"endHours":21.11639450657374,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:07","end":"22:07","startHours":21.11639450657374,"endHours":22.11639450657374,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:07","end":"23:07","startHours":22.11639450657374,"endHours":23.11639450657374,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:07","end":"00:07","startHours":23.11639450657374,"endHours":24.11639450657374,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:07","end":"01:07","startHours":24.11639450657374,"endHours":25.11639450657374,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:07","end":"02:07","startHours":25.11639450657374,"endHours":26.11639450657374,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:07","end":"03:07","startHours":26.11639450657374,"endHours":27.11639450657374,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:07","end":"04:07","startHours":27.11639450657374,"endHours":28.11639450657374,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:07","end":"05:07","startHours":28.11639450657374,"endHours":29.11639450657374,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:07","end":"06:07","startHours":29.11639450657374,"endHours":30.11639450657374,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-3.017679437117436,"eotMinutes":11.167764186584405,"ayanamsa":23.7238}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Dvādaśī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 October 1, 1990 CE · Erode, Tamil Nadu · Vidhyamitra","description":"October 1, 1990 CE for Erode, Tamil Nadu: Śukla Dvādaśī, sūryodaya 06:07, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1990-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1990-10-01","sa":"https://sa.vidhyamitra.com/city/erode/1990-10-01","hi":"https://hi.vidhyamitra.com/city/erode/1990-10-01","x-default":"https://vidhyamitra.com/city/erode/1990-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T17:00:52.898Z","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":"2026-05-17T17:00:52.899Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T17:00:52.899Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}