{"id":"vidhyamitra:city-day:phoenix:2102-02-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2102-02-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2102-02-28","date_display":"February 28, 2102 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":2102,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488857.770833,"kali_year":5203,"ahargana":1900392.2708,"sun":{"sidereal_longitude":313.6465,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":76.3569,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.7103,"elapsed_within_tithi_degrees":2.7103},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":76.3569,"elapsed_within_degrees":9.6902},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":30.0034},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"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":2102,"month":2,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488857.770833,"ahargana":1900392.2708,"kali_year":5203,"ayanamsa_lahiri":25.2801,"grahas":{"sun":{"sidereal_longitude":313.73938799999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":78.056288,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false,"latitude":2.3639},"mars":{"sidereal_longitude":53.86358799999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":298.74028799999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":235.80388800000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":265.534488,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":203.987888,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":288.0722,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":108.0722,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":2102,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488857.770833,"kali_year":5203,"ahargana":1900392.2708,"sun":{"sidereal_longitude":313.6465,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":76.3569,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.7103,"elapsed_within_tithi_degrees":2.7103},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":76.3569,"elapsed_within_degrees":9.6902},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":30.0034},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.364,"elongation":122.71},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.364,"opposition_distance":57.29}},"eclipse_window_40days":[]},"city":{"slug":"phoenix","name":"Phoenix, USA","lat":33.4484,"lon":-112.074,"tz_offset_hours":-7,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"phoenix","name":"Phoenix, USA","lat":33.4484,"lon":-112.074,"tz_offset_hours":-7,"country":"US","tier":"diaspora"},"sunriseLocal":"06:59","sunsetLocal":"18:24","solarNoonLocal":"12:42","dayLengthHours":11.407815623785943,"dayLengthDisplay":"11 Hours 24 Mins 28 Secs","nightLengthDisplay":"12 Hours 35 Mins 32 Secs","moonriseLocal":"13:51","moonsetLocal":"04:06","rahuKala":{"name":"Rāhu Kāla","start":"15:33","end":"16:58","startHours":15.54393821971361,"endHours":16.96991517268685,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:50","end":"11:16","startHours":9.840030407820638,"endHours":11.26600736079388,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:42","end":"14:07","startHours":12.691984313767122,"endHours":14.117961266740366,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"10:02","startHours":9.649900147424205,"endHours":10.03016066821707,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:28","end":"07:46","startHours":7.463402152865233,"endHours":7.767610569499524,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:19","end":"13:04","startHours":12.311723792974258,"endHours":13.072244834559987,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:28","end":"06:14","startHours":5.467034418702692,"endHours":6.227555460288422,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:02","end":"06:59","startHours":6.03742519989199,"endHours":6.9880765018741515,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:36","end":"15:21","startHours":14.593286917731447,"endHours":15.353807959317177,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:12","end":"18:36","startHours":18.195892125660095,"endHours":18.595892125660093,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:24","end":"18:52","startHours":18.395892125660094,"endHours":18.871217776651175,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:09","end":"19:54","startHours":18.145892125660094,"endHours":19.895892125660094,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:19","end":"01:04","startHours":24.311723792974256,"endHours":25.07224483455999,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:59","end":"08:25","startHours":6.9880765018741515,"endHours":8.414053454847394,"quality":"inauspicious"},{"name":"Udveg","start":"08:25","end":"09:50","startHours":8.414053454847394,"endHours":9.840030407820638,"quality":"inauspicious"},{"name":"Chala","start":"09:50","end":"11:16","startHours":9.840030407820638,"endHours":11.26600736079388,"quality":"neutral"},{"name":"Labha","start":"11:16","end":"12:42","startHours":11.26600736079388,"endHours":12.691984313767122,"quality":"auspicious"},{"name":"Amṛta","start":"12:42","end":"14:07","startHours":12.691984313767122,"endHours":14.117961266740366,"quality":"auspicious"},{"name":"Kāla","start":"14:07","end":"15:33","startHours":14.117961266740366,"endHours":15.54393821971361,"quality":"inauspicious"},{"name":"Śubha","start":"15:33","end":"16:58","startHours":15.54393821971361,"endHours":16.96991517268685,"quality":"auspicious"},{"name":"Roga","start":"16:58","end":"18:24","startHours":16.96991517268685,"endHours":18.395892125660094,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:24","end":"19:58","startHours":18.395892125660094,"endHours":19.96991517268685,"quality":"inauspicious"},{"name":"Śubha","start":"19:58","end":"21:33","startHours":19.96991517268685,"endHours":21.54393821971361,"quality":"auspicious"},{"name":"Roga","start":"21:33","end":"23:07","startHours":21.54393821971361,"endHours":23.117961266740366,"quality":"inauspicious"},{"name":"Udveg","start":"23:07","end":"00:42","startHours":23.117961266740366,"endHours":24.691984313767122,"quality":"inauspicious"},{"name":"Chala","start":"00:42","end":"02:16","startHours":24.691984313767122,"endHours":26.26600736079388,"quality":"neutral"},{"name":"Labha","start":"02:16","end":"03:50","startHours":26.26600736079388,"endHours":27.840030407820635,"quality":"auspicious"},{"name":"Amṛta","start":"03:50","end":"05:25","startHours":27.840030407820635,"endHours":29.414053454847394,"quality":"auspicious"},{"name":"Kāla","start":"05:25","end":"06:59","startHours":29.414053454847394,"endHours":30.98807650187415,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:59","end":"07:59","startHours":6.9880765018741515,"endHours":7.9880765018741515,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:59","end":"08:59","startHours":7.9880765018741515,"endHours":8.98807650187415,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:59","end":"09:59","startHours":8.98807650187415,"endHours":9.98807650187415,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:59","end":"10:59","startHours":9.98807650187415,"endHours":10.98807650187415,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:59","end":"11:59","startHours":10.98807650187415,"endHours":11.98807650187415,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:59","end":"12:59","startHours":11.98807650187415,"endHours":12.98807650187415,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:59","end":"13:59","startHours":12.98807650187415,"endHours":13.98807650187415,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:59","end":"14:59","startHours":13.98807650187415,"endHours":14.98807650187415,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:59","end":"15:59","startHours":14.98807650187415,"endHours":15.98807650187415,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:59","end":"16:59","startHours":15.98807650187415,"endHours":16.98807650187415,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:59","end":"17:59","startHours":16.98807650187415,"endHours":17.98807650187415,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:59","end":"18:59","startHours":17.98807650187415,"endHours":18.98807650187415,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:59","end":"19:59","startHours":18.98807650187415,"endHours":19.98807650187415,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:59","end":"20:59","startHours":19.98807650187415,"endHours":20.98807650187415,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:59","end":"21:59","startHours":20.98807650187415,"endHours":21.98807650187415,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:59","end":"22:59","startHours":21.98807650187415,"endHours":22.98807650187415,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:59","end":"23:59","startHours":22.98807650187415,"endHours":23.98807650187415,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:59","end":"00:59","startHours":23.98807650187415,"endHours":24.98807650187415,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:59","end":"01:59","startHours":24.98807650187415,"endHours":25.98807650187415,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:59","end":"02:59","startHours":25.98807650187415,"endHours":26.98807650187415,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:59","end":"03:59","startHours":26.98807650187415,"endHours":27.98807650187415,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:59","end":"04:59","startHours":27.98807650187415,"endHours":28.98807650187415,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:59","end":"05:59","startHours":28.98807650187415,"endHours":29.98807650187415,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:59","end":"06:59","startHours":29.98807650187415,"endHours":30.98807650187415,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-8.1872261037094,"eotMinutes":-13.223058826027486,"ayanamsa":25.2801}},"calendars":{"vikram_samvat":2159,"vikram_samvatsara":"Yuva","saka_samvat":2024,"saka_samvatsara":"Dundubhi","bengali_samvat":1509,"malayalam_era":1278,"nanakshahi_year":633,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Ekādaśī · Vikram 2159 Yuva · Śaka 2024 Dundubhi"},"festivals":[{"id":"amalaki-ekadashi","name":"Āmalakī Ekādaśī","name_sanskrit":"आमलकी एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu (in Āmalakī tree)","significance":"Worship of Āmalakī (Indian gooseberry, sacred to Viṣṇu).","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Phālguna"},"precedence":4},{"id":"rangbhari-ekadashi","name":"Raṅgbhari Ekādaśī","name_sanskrit":"रङ्गभरी एकादशी","tradition":"Shaiva","associated_deity":"Śiva-Pārvatī","significance":"Kāśī tradition: Śiva brings Pārvatī home; rang-utsava begins.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Phālguna"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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":[]},"validity":{"eternal":false,"location_specific":"phoenix"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 28, 2102 CE · Phoenix, USA · Vidhyamitra","description":"February 28, 2102 CE for Phoenix, USA: Śukla Ekādaśī, sūryodaya 06:59, sūryāsta 18:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2102-02-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2102-02-28","sa":"https://sa.vidhyamitra.com/city/phoenix/2102-02-28","hi":"https://hi.vidhyamitra.com/city/phoenix/2102-02-28","x-default":"https://vidhyamitra.com/city/phoenix/2102-02-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T00:14:23.902Z","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":"2026-06-02T00:14:23.902Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T00:14:23.902Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}