{"id":"vidhyamitra:city-day:chicago:2001-01-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2001-01-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-01-15","date_display":"January 15, 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":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451924.770833,"kali_year":5102,"ahargana":1863459.2708,"sun":{"sidereal_longitude":270.9765,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":158.9936,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":248.0171,"elapsed_within_tithi_degrees":8.0171},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.9936,"elapsed_within_degrees":12.3269},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":69.97},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"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":2001,"month":1,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451924.770833,"ahargana":1863459.2708,"kali_year":5102,"ayanamsa_lahiri":23.8675,"grahas":{"sun":{"sidereal_longitude":271.08939999999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":162.56449999999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false,"latitude":4.3261},"mars":{"sidereal_longitude":199.16219999999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":283.62379999999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":37.47090000000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":318.14239999999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":30.192000000000007,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":84.9602,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":264.9602,"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":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451924.770833,"kali_year":5102,"ahargana":1863459.2708,"sun":{"sidereal_longitude":270.9765,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":158.9936,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":248.0171,"elapsed_within_tithi_degrees":8.0171},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.9936,"elapsed_within_degrees":12.3269},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":69.97},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.326,"elongation":111.983},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.326,"opposition_distance":68.017}},"eclipse_window_40days":[{"offset_days":-5,"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":"07:16","sunsetLocal":"16:44","solarNoonLocal":"12:00","dayLengthHours":9.465767996491053,"dayLengthDisplay":"9 Hours 27 Mins 57 Secs","nightLengthDisplay":"14 Hours 32 Mins 03 Secs","moonriseLocal":"22:52","moonsetLocal":"10:40","rahuKala":{"name":"Rāhu Kāla","start":"08:27","end":"09:38","startHours":8.44815615875141,"endHours":9.631377158312791,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:49","end":"12:00","startHours":10.814598157874173,"endHours":11.997819157435554,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:11","end":"14:22","startHours":13.181040156996936,"endHours":14.364261156558317,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:47","startHours":9.473614358371274,"endHours":9.789139958254308,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:55","startHours":7.659342159043821,"endHours":7.91176263895025,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:19","startHours":11.68229355755252,"endHours":12.313344757318589,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:00","end":"06:38","startHours":6.002832759657887,"endHours":6.633883959423958,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:29","end":"07:16","startHours":6.47612115948244,"endHours":7.264935159190028,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:35","end":"14:12","startHours":13.575447156850728,"endHours":14.206498356616798,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:32","end":"16:56","startHours":16.53070315568108,"endHours":16.93070315568108,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:44","end":"17:08","startHours":16.73070315568108,"endHours":17.125110155534873,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:29","end":"18:14","startHours":16.48070315568108,"endHours":18.23070315568108,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:19","startHours":23.68229355755252,"endHours":24.31334475731859,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:16","end":"08:27","startHours":7.264935159190028,"endHours":8.44815615875141,"quality":"auspicious"},{"name":"Kāla","start":"08:27","end":"09:38","startHours":8.44815615875141,"endHours":9.631377158312791,"quality":"inauspicious"},{"name":"Śubha","start":"09:38","end":"10:49","startHours":9.631377158312791,"endHours":10.814598157874173,"quality":"auspicious"},{"name":"Roga","start":"10:49","end":"12:00","startHours":10.814598157874173,"endHours":11.997819157435554,"quality":"inauspicious"},{"name":"Udveg","start":"12:00","end":"13:11","startHours":11.997819157435554,"endHours":13.181040156996936,"quality":"inauspicious"},{"name":"Chala","start":"13:11","end":"14:22","startHours":13.181040156996936,"endHours":14.364261156558317,"quality":"neutral"},{"name":"Labha","start":"14:22","end":"15:33","startHours":14.364261156558317,"endHours":15.547482156119699,"quality":"auspicious"},{"name":"Amṛta","start":"15:33","end":"16:44","startHours":15.547482156119699,"endHours":16.73070315568108,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"16:44","end":"18:33","startHours":16.73070315568108,"endHours":18.5474821561197,"quality":"neutral"},{"name":"Labha","start":"18:33","end":"20:22","startHours":18.5474821561197,"endHours":20.364261156558317,"quality":"auspicious"},{"name":"Amṛta","start":"20:22","end":"22:11","startHours":20.364261156558317,"endHours":22.181040156996936,"quality":"auspicious"},{"name":"Kāla","start":"22:11","end":"00:00","startHours":22.181040156996936,"endHours":23.997819157435554,"quality":"inauspicious"},{"name":"Śubha","start":"00:00","end":"01:49","startHours":23.997819157435554,"endHours":25.814598157874173,"quality":"auspicious"},{"name":"Roga","start":"01:49","end":"03:38","startHours":25.814598157874173,"endHours":27.63137715831279,"quality":"inauspicious"},{"name":"Udveg","start":"03:38","end":"05:27","startHours":27.63137715831279,"endHours":29.44815615875141,"quality":"inauspicious"},{"name":"Chala","start":"05:27","end":"07:16","startHours":29.44815615875141,"endHours":31.264935159190028,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:16","end":"08:16","startHours":7.264935159190028,"endHours":8.264935159190028,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:16","end":"09:16","startHours":8.264935159190028,"endHours":9.264935159190028,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:16","end":"10:16","startHours":9.264935159190028,"endHours":10.264935159190028,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:16","end":"11:16","startHours":10.264935159190028,"endHours":11.264935159190028,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:16","end":"12:16","startHours":11.264935159190028,"endHours":12.264935159190028,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:16","end":"13:16","startHours":12.264935159190028,"endHours":13.264935159190028,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:16","end":"14:16","startHours":13.264935159190028,"endHours":14.264935159190028,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:16","end":"15:16","startHours":14.264935159190028,"endHours":15.264935159190028,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:16","end":"16:16","startHours":15.264935159190028,"endHours":16.264935159190028,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:16","end":"17:16","startHours":16.264935159190028,"endHours":17.264935159190028,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:16","end":"18:16","startHours":17.264935159190028,"endHours":18.264935159190028,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:16","end":"19:16","startHours":18.264935159190028,"endHours":19.264935159190028,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:16","end":"20:16","startHours":19.264935159190028,"endHours":20.264935159190028,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:16","end":"21:16","startHours":20.264935159190028,"endHours":21.264935159190028,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:16","end":"22:16","startHours":21.264935159190028,"endHours":22.264935159190028,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:16","end":"23:16","startHours":22.264935159190028,"endHours":23.264935159190028,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:16","end":"00:16","startHours":23.264935159190028,"endHours":24.264935159190028,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:16","end":"01:16","startHours":24.264935159190028,"endHours":25.264935159190028,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:16","end":"02:16","startHours":25.264935159190028,"endHours":26.264935159190028,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:16","end":"03:16","startHours":26.264935159190028,"endHours":27.264935159190028,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:16","end":"04:16","startHours":27.264935159190028,"endHours":28.264935159190028,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:16","end":"05:16","startHours":28.264935159190028,"endHours":29.264935159190028,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:16","end":"06:16","startHours":29.264935159190028,"endHours":30.264935159190028,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:16","end":"07:16","startHours":30.264935159190028,"endHours":31.264935159190028,"planetary_lord":"Venus"}],"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.13670264533962,"eotMinutes":-9.349949446133257,"ayanamsa":23.8675}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Ṣaṣṭhī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[],"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":"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 15, 2001 CE · Chicago, USA · Vidhyamitra","description":"January 15, 2001 CE for Chicago, USA: Kṛṣṇa Ṣaṣṭhī, sūryodaya 07:16, sūryāsta 16:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2001-01-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2001-01-15","sa":"https://sa.vidhyamitra.com/city/chicago/2001-01-15","hi":"https://hi.vidhyamitra.com/city/chicago/2001-01-15","x-default":"https://vidhyamitra.com/city/chicago/2001-01-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T23:10:12.116Z","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":"2026-06-01T23:10:12.116Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T23:10:12.116Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}