{"id":"vidhyamitra:city-day:chicago:2001-01-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2001-01-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-01-06","date_display":"January 6, 2001 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":2001,"month":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451915.770833,"kali_year":5102,"ahargana":1863450.2708,"sun":{"sidereal_longitude":261.729,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":31.6982,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":129.9692,"elapsed_within_tithi_degrees":9.9692},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":31.6982,"elapsed_within_degrees":5.0315},"yoga":{"number":23,"name":"Śubha","sum_longitude":293.4272},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2001,"month":1,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451915.770833,"ahargana":1863450.2708,"kali_year":5102,"ayanamsa_lahiri":23.8672,"grahas":{"sun":{"sidereal_longitude":261.9195440000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":29.759143999999992,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false,"latitude":-3.6272},"mars":{"sidereal_longitude":193.97794399999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":268.695344,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":37.92494399999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":308.609644,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":30.43094400000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":85.4371,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":265.4371,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2001,"month":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451915.770833,"kali_year":5102,"ahargana":1863450.2708,"sun":{"sidereal_longitude":261.729,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":31.6982,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":129.9692,"elapsed_within_tithi_degrees":9.9692},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":31.6982,"elapsed_within_degrees":5.0315},"yoga":{"number":23,"name":"Śubha","sum_longitude":293.4272},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.627,"elongation":129.969},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.627,"opposition_distance":50.031}},"eclipse_window_40days":[{"offset_days":4,"type":"lunar","occurs":true,"moon_latitude":0.182,"opposition_distance":1.705}]},"city":{"slug":"chicago","name":"Chicago, USA","lat":41.8781,"lon":-87.6298,"tz_offset_hours":-6,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"chicago","name":"Chicago, USA","lat":41.8781,"lon":-87.6298,"tz_offset_hours":-6,"country":"US","tier":"diaspora"},"sunriseLocal":"07:18","sunsetLocal":"16:34","solarNoonLocal":"11:56","dayLengthHours":9.266029473381606,"dayLengthDisplay":"9 Hours 15 Mins 58 Secs","nightLengthDisplay":"14 Hours 44 Mins 02 Secs","moonriseLocal":"13:14","moonsetLocal":"03:42","rahuKala":{"name":"Rāhu Kāla","start":"09:37","end":"10:47","startHours":9.623406316770831,"endHours":10.781660000943532,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:06","end":"14:15","startHours":13.098167369288934,"endHours":14.256421053461633,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:18","end":"08:28","startHours":7.306898948425429,"endHours":8.46515263259813,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:47","startHours":9.468972492214471,"endHours":9.777840141327191,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:42","end":"07:56","startHours":7.6929835098163295,"endHours":7.940077629106506,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:15","startHours":11.63104603600351,"endHours":12.248781334228951,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:04","end":"06:41","startHours":6.071428351974548,"endHours":6.689163650199989,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:32","end":"07:18","startHours":6.534729825643629,"endHours":7.306898948425429,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:29","end":"14:06","startHours":13.484251930679832,"endHours":14.101987228905273,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:22","end":"16:46","startHours":16.372928421807035,"endHours":16.772928421807034,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:34","end":"16:58","startHours":16.572928421807035,"endHours":16.959012983197933,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:19","end":"18:04","startHours":16.322928421807035,"endHours":18.072928421807035,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:15","startHours":23.63104603600351,"endHours":24.24878133422895,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:18","end":"08:28","startHours":7.306898948425429,"endHours":8.46515263259813,"quality":"inauspicious"},{"name":"Śubha","start":"08:28","end":"09:37","startHours":8.46515263259813,"endHours":9.623406316770831,"quality":"auspicious"},{"name":"Roga","start":"09:37","end":"10:47","startHours":9.623406316770831,"endHours":10.781660000943532,"quality":"inauspicious"},{"name":"Udveg","start":"10:47","end":"11:56","startHours":10.781660000943532,"endHours":11.939913685116231,"quality":"inauspicious"},{"name":"Chala","start":"11:56","end":"13:06","startHours":11.939913685116231,"endHours":13.098167369288934,"quality":"neutral"},{"name":"Labha","start":"13:06","end":"14:15","startHours":13.098167369288934,"endHours":14.256421053461633,"quality":"auspicious"},{"name":"Amṛta","start":"14:15","end":"15:25","startHours":14.256421053461633,"endHours":15.414674737634334,"quality":"auspicious"},{"name":"Kāla","start":"15:25","end":"16:34","startHours":15.414674737634334,"endHours":16.572928421807035,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"16:34","end":"18:25","startHours":16.572928421807035,"endHours":18.414674737634336,"quality":"auspicious"},{"name":"Amṛta","start":"18:25","end":"20:15","startHours":18.414674737634336,"endHours":20.256421053461633,"quality":"auspicious"},{"name":"Kāla","start":"20:15","end":"22:06","startHours":20.256421053461633,"endHours":22.098167369288934,"quality":"inauspicious"},{"name":"Śubha","start":"22:06","end":"23:56","startHours":22.098167369288934,"endHours":23.93991368511623,"quality":"auspicious"},{"name":"Roga","start":"23:56","end":"01:47","startHours":23.93991368511623,"endHours":25.781660000943532,"quality":"inauspicious"},{"name":"Udveg","start":"01:47","end":"03:37","startHours":25.781660000943532,"endHours":27.623406316770833,"quality":"inauspicious"},{"name":"Chala","start":"03:37","end":"05:28","startHours":27.623406316770833,"endHours":29.46515263259813,"quality":"neutral"},{"name":"Labha","start":"05:28","end":"07:18","startHours":29.46515263259813,"endHours":31.306898948425427,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:18","end":"08:18","startHours":7.306898948425429,"endHours":8.30689894842543,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:18","end":"09:18","startHours":8.30689894842543,"endHours":9.30689894842543,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:18","end":"10:18","startHours":9.30689894842543,"endHours":10.30689894842543,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:18","end":"11:18","startHours":10.30689894842543,"endHours":11.30689894842543,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:18","end":"12:18","startHours":11.30689894842543,"endHours":12.30689894842543,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:18","end":"13:18","startHours":12.30689894842543,"endHours":13.30689894842543,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:18","end":"14:18","startHours":13.30689894842543,"endHours":14.30689894842543,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:18","end":"15:18","startHours":14.30689894842543,"endHours":15.30689894842543,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:18","end":"16:18","startHours":15.30689894842543,"endHours":16.306898948425427,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:18","end":"17:18","startHours":16.306898948425427,"endHours":17.306898948425427,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:18","end":"18:18","startHours":17.306898948425427,"endHours":18.306898948425427,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:18","end":"19:18","startHours":18.306898948425427,"endHours":19.306898948425427,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:18","end":"20:18","startHours":19.306898948425427,"endHours":20.306898948425427,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:18","end":"21:18","startHours":20.306898948425427,"endHours":21.306898948425427,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:18","end":"22:18","startHours":21.306898948425427,"endHours":22.306898948425427,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:18","end":"23:18","startHours":22.306898948425427,"endHours":23.306898948425427,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:18","end":"00:18","startHours":23.306898948425427,"endHours":24.306898948425427,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:18","end":"01:18","startHours":24.306898948425427,"endHours":25.306898948425427,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:18","end":"02:18","startHours":25.306898948425427,"endHours":26.306898948425427,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:18","end":"03:18","startHours":26.306898948425427,"endHours":27.306898948425427,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:18","end":"04:18","startHours":27.306898948425427,"endHours":28.306898948425427,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:18","end":"05:18","startHours":28.306898948425427,"endHours":29.306898948425427,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:18","end":"06:18","startHours":29.306898948425427,"endHours":30.306898948425427,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:18","end":"07:18","startHours":30.306898948425427,"endHours":31.306898948425427,"planetary_lord":"Mercury"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.502911289340833,"eotMinutes":-5.875621106973772,"ayanamsa":23.8672}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Ekādaśī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[{"id":"putrada-ekadashi","name":"Pauṣa Putradā Ekādaśī","name_sanskrit":"पौष पुत्रदा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Ekādaśī granting putra-prāpti.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"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":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"chicago"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 6, 2001 CE · Chicago, USA · Vidhyamitra","description":"January 6, 2001 CE for Chicago, USA: Śukla Ekādaśī, sūryodaya 07:18, sūryāsta 16:34.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2001-01-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2001-01-06","sa":"https://sa.vidhyamitra.com/city/chicago/2001-01-06","hi":"https://hi.vidhyamitra.com/city/chicago/2001-01-06","x-default":"https://vidhyamitra.com/city/chicago/2001-01-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T23:51:42.391Z","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":"2026-05-30T23:51:42.391Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T23:51:42.391Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}