{"id":"vidhyamitra:city-day:mathura:1990-04-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1990-04-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-04-15","date_display":"April 15, 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":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447996.770833,"kali_year":5091,"ahargana":1859531.2708,"sun":{"sidereal_longitude":1.2539,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":238.5359,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":237.282,"elapsed_within_tithi_degrees":9.282},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4,"moon_longitude":238.5359,"elapsed_within_degrees":11.8692},"yoga":{"number":18,"name":"Varīyān","sum_longitude":239.7898},"karana":{"half_tithi_index":39,"name":"Taitila"},"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":1990,"month":4,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447996.770833,"ahargana":1859531.2708,"kali_year":5091,"ayanamsa_lahiri":23.7173,"grahas":{"sun":{"sidereal_longitude":1.1008790000000204,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":234.717979,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":-3.6645},"mars":{"sidereal_longitude":302.00177899999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":20.69207899999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":70.87347899999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":315.49547899999993,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":271.068679,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":293.0846,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":113.0846,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1990,"month":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447996.770833,"kali_year":5091,"ahargana":1859531.2708,"sun":{"sidereal_longitude":1.2539,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":238.5359,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":237.282,"elapsed_within_tithi_degrees":9.282},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4,"moon_longitude":238.5359,"elapsed_within_degrees":11.8692},"yoga":{"number":18,"name":"Varīyān","sum_longitude":239.7898},"karana":{"half_tithi_index":39,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.664,"elongation":122.718},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.664,"opposition_distance":57.282}},"eclipse_window_40days":[]},"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"05:55","sunsetLocal":"18:44","solarNoonLocal":"12:20","dayLengthHours":12.80159580297189,"dayLengthDisplay":"12 Hours 48 Mins 06 Secs","nightLengthDisplay":"11 Hours 11 Mins 54 Secs","moonriseLocal":"22:42","moonsetLocal":"09:06","rahuKala":{"name":"Rāhu Kāla","start":"17:08","end":"18:44","startHours":17.12635382707791,"endHours":18.726553302449396,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:20","end":"13:56","startHours":12.325755400963452,"endHours":13.925954876334938,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:32","end":"17:08","startHours":15.526154351706424,"endHours":17.12635382707791,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:20","startHours":8.911996520170947,"endHours":9.33871638027001,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:28","end":"06:48","startHours":6.458357324601335,"endHours":6.799733212680585,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:45","startHours":11.89903554086439,"endHours":12.752475261062514,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:13","end":"05:04","startHours":4.218078059081254,"endHours":5.07151777927938,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:51","end":"05:55","startHours":4.858157849229848,"endHours":5.924957499477506,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:19","startHours":14.459354701458766,"endHours":15.312794421656893,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:32","end":"18:56","startHours":18.526553302449397,"endHours":18.926553302449395,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:44","end":"19:16","startHours":18.726553302449396,"endHours":19.259953127573226,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:29","end":"20:14","startHours":18.476553302449396,"endHours":20.226553302449396,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:45","startHours":23.89903554086439,"endHours":24.752475261062514,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:55","end":"07:32","startHours":5.924957499477506,"endHours":7.525156974848992,"quality":"inauspicious"},{"name":"Chala","start":"07:32","end":"09:08","startHours":7.525156974848992,"endHours":9.125356450220478,"quality":"neutral"},{"name":"Labha","start":"09:08","end":"10:44","startHours":9.125356450220478,"endHours":10.725555925591966,"quality":"auspicious"},{"name":"Amṛta","start":"10:44","end":"12:20","startHours":10.725555925591966,"endHours":12.325755400963452,"quality":"auspicious"},{"name":"Kāla","start":"12:20","end":"13:56","startHours":12.325755400963452,"endHours":13.925954876334938,"quality":"inauspicious"},{"name":"Śubha","start":"13:56","end":"15:32","startHours":13.925954876334938,"endHours":15.526154351706424,"quality":"auspicious"},{"name":"Roga","start":"15:32","end":"17:08","startHours":15.526154351706424,"endHours":17.12635382707791,"quality":"inauspicious"},{"name":"Udveg","start":"17:08","end":"18:44","startHours":17.12635382707791,"endHours":18.726553302449396,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:44","end":"20:08","startHours":18.726553302449396,"endHours":20.12635382707791,"quality":"auspicious"},{"name":"Roga","start":"20:08","end":"21:32","startHours":20.12635382707791,"endHours":21.526154351706424,"quality":"inauspicious"},{"name":"Udveg","start":"21:32","end":"22:56","startHours":21.526154351706424,"endHours":22.925954876334938,"quality":"inauspicious"},{"name":"Chala","start":"22:56","end":"00:20","startHours":22.925954876334938,"endHours":24.325755400963452,"quality":"neutral"},{"name":"Labha","start":"00:20","end":"01:44","startHours":24.325755400963452,"endHours":25.725555925591966,"quality":"auspicious"},{"name":"Amṛta","start":"01:44","end":"03:08","startHours":25.725555925591966,"endHours":27.12535645022048,"quality":"auspicious"},{"name":"Kāla","start":"03:08","end":"04:32","startHours":27.12535645022048,"endHours":28.52515697484899,"quality":"inauspicious"},{"name":"Śubha","start":"04:32","end":"05:55","startHours":28.52515697484899,"endHours":29.924957499477507,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:55","end":"06:55","startHours":5.924957499477506,"endHours":6.924957499477506,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:55","end":"07:55","startHours":6.924957499477506,"endHours":7.924957499477506,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:55","end":"08:55","startHours":7.924957499477506,"endHours":8.924957499477506,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:55","end":"09:55","startHours":8.924957499477506,"endHours":9.924957499477506,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:55","end":"10:55","startHours":9.924957499477506,"endHours":10.924957499477506,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:55","end":"11:55","startHours":10.924957499477506,"endHours":11.924957499477506,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:55","end":"12:55","startHours":11.924957499477506,"endHours":12.924957499477506,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:55","end":"13:55","startHours":12.924957499477506,"endHours":13.924957499477506,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:55","end":"14:55","startHours":13.924957499477506,"endHours":14.924957499477506,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:55","end":"15:55","startHours":14.924957499477506,"endHours":15.924957499477506,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:55","end":"16:55","startHours":15.924957499477506,"endHours":16.924957499477507,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:55","end":"17:55","startHours":16.924957499477507,"endHours":17.924957499477507,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:55","end":"18:55","startHours":17.924957499477507,"endHours":18.924957499477507,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:55","end":"19:55","startHours":18.924957499477507,"endHours":19.924957499477507,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:55","end":"20:55","startHours":19.924957499477507,"endHours":20.924957499477507,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:55","end":"21:55","startHours":20.924957499477507,"endHours":21.924957499477507,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:55","end":"22:55","startHours":21.924957499477507,"endHours":22.924957499477507,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:55","end":"23:55","startHours":22.924957499477507,"endHours":23.924957499477507,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:55","end":"00:55","startHours":23.924957499477507,"endHours":24.924957499477507,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:55","end":"01:55","startHours":24.924957499477507,"endHours":25.924957499477507,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:55","end":"02:55","startHours":25.924957499477507,"endHours":26.924957499477507,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:55","end":"03:55","startHours":26.924957499477507,"endHours":27.924957499477507,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:55","end":"04:55","startHours":27.924957499477507,"endHours":28.924957499477507,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:55","end":"05:55","startHours":28.924957499477507,"endHours":29.924957499477507,"planetary_lord":"Jupiter"}],"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","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"drikRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":9.610198957596362,"eotMinutes":-0.240124057807095,"ayanamsa":23.7173}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Pañcamī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"mathura"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 15, 1990 CE · Mathurā · Vidhyamitra","description":"April 15, 1990 CE for Mathurā: Kṛṣṇa Pañcamī, sūryodaya 05:55, sūryāsta 18:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1990-04-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1990-04-15","sa":"https://sa.vidhyamitra.com/city/mathura/1990-04-15","hi":"https://hi.vidhyamitra.com/city/mathura/1990-04-15","x-default":"https://vidhyamitra.com/city/mathura/1990-04-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T14:46:59.497Z","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":"2026-05-14T14:46:59.497Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T14:46:59.497Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}