{"id":"vidhyamitra:city-day:chicago:1998-02-02:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/1998-02-02","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-02-02","date_display":"February 2, 1998 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1998,"month":2,"day":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450846.770833,"kali_year":5099,"ahargana":1862381.2708,"sun":{"sidereal_longitude":289.1868,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":351.4124,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":62.2256,"elapsed_within_tithi_degrees":2.2256},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":351.4124,"elapsed_within_degrees":4.7457},"yoga":{"number":22,"name":"Sādhya","sum_longitude":280.5993},"karana":{"half_tithi_index":10,"name":"Kaulava"},"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":1998,"month":2,"day":2,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450846.770833,"ahargana":1862381.2708,"kali_year":5099,"ayanamsa_lahiri":23.8263,"grahas":{"sun":{"sidereal_longitude":289.15888799999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":354.056588,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false,"latitude":-2.2029},"mars":{"sidereal_longitude":312.22668799999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":275.33278799999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":305.59048800000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":264.8167880000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":351.674488,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":142.0779,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":322.0779,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1998,"month":2,"day":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450846.770833,"kali_year":5099,"ahargana":1862381.2708,"sun":{"sidereal_longitude":289.1868,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":351.4124,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":62.2256,"elapsed_within_tithi_degrees":2.2256},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":351.4124,"elapsed_within_degrees":4.7457},"yoga":{"number":22,"name":"Sādhya","sum_longitude":280.5993},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.203,"elongation":62.226},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.203,"opposition_distance":117.774}},"eclipse_window_40days":[]},"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":"07:03","sunsetLocal":"17:06","solarNoonLocal":"12:04","dayLengthHours":10.051955208095544,"dayLengthDisplay":"10 Hours 03 Mins 07 Secs","nightLengthDisplay":"13 Hours 56 Mins 53 Secs","moonriseLocal":"09:55","moonsetLocal":"22:52","rahuKala":{"name":"Rāhu Kāla","start":"08:18","end":"09:34","startHours":8.303109083420658,"endHours":9.5596034844326,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:49","end":"12:04","startHours":10.816097885444544,"endHours":12.072592286456487,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:20","end":"14:35","startHours":13.329086687468429,"endHours":14.585581088480373,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:44","startHours":9.392070897631008,"endHours":9.727136071234192,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:28","end":"07:44","startHours":7.465446149412696,"endHours":7.733498288295244,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:24","startHours":11.737527112853302,"endHours":12.407657460059673,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:42","end":"06:23","startHours":5.706353987995975,"endHours":6.376484335202345,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:13","end":"07:03","startHours":6.208951748400752,"endHours":7.046614682408714,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:45","end":"14:25","startHours":13.74791815447241,"endHours":14.41804850167878,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:54","end":"17:18","startHours":16.89856989050426,"endHours":17.298569890504258,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:06","end":"17:31","startHours":17.09856989050426,"endHours":17.517401357508238,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:51","end":"18:36","startHours":16.84856989050426,"endHours":18.59856989050426,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:24","startHours":23.737527112853304,"endHours":24.40765746005967,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:03","end":"08:18","startHours":7.046614682408714,"endHours":8.303109083420658,"quality":"auspicious"},{"name":"Kāla","start":"08:18","end":"09:34","startHours":8.303109083420658,"endHours":9.5596034844326,"quality":"inauspicious"},{"name":"Śubha","start":"09:34","end":"10:49","startHours":9.5596034844326,"endHours":10.816097885444544,"quality":"auspicious"},{"name":"Roga","start":"10:49","end":"12:04","startHours":10.816097885444544,"endHours":12.072592286456487,"quality":"inauspicious"},{"name":"Udveg","start":"12:04","end":"13:20","startHours":12.072592286456487,"endHours":13.329086687468429,"quality":"inauspicious"},{"name":"Chala","start":"13:20","end":"14:35","startHours":13.329086687468429,"endHours":14.585581088480373,"quality":"neutral"},{"name":"Labha","start":"14:35","end":"15:51","startHours":14.585581088480373,"endHours":15.842075489492315,"quality":"auspicious"},{"name":"Amṛta","start":"15:51","end":"17:06","startHours":15.842075489492315,"endHours":17.09856989050426,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:06","end":"18:51","startHours":17.09856989050426,"endHours":18.842075489492316,"quality":"neutral"},{"name":"Labha","start":"18:51","end":"20:35","startHours":18.842075489492316,"endHours":20.58558108848037,"quality":"auspicious"},{"name":"Amṛta","start":"20:35","end":"22:20","startHours":20.58558108848037,"endHours":22.32908668746843,"quality":"auspicious"},{"name":"Kāla","start":"22:20","end":"00:04","startHours":22.32908668746843,"endHours":24.072592286456487,"quality":"inauspicious"},{"name":"Śubha","start":"00:04","end":"01:49","startHours":24.072592286456487,"endHours":25.81609788544454,"quality":"auspicious"},{"name":"Roga","start":"01:49","end":"03:34","startHours":25.81609788544454,"endHours":27.5596034844326,"quality":"inauspicious"},{"name":"Udveg","start":"03:34","end":"05:18","startHours":27.5596034844326,"endHours":29.303109083420658,"quality":"inauspicious"},{"name":"Chala","start":"05:18","end":"07:03","startHours":29.303109083420658,"endHours":31.046614682408716,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:03","end":"08:03","startHours":7.046614682408714,"endHours":8.046614682408714,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:03","end":"09:03","startHours":8.046614682408714,"endHours":9.046614682408714,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:03","end":"10:03","startHours":9.046614682408714,"endHours":10.046614682408714,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:03","end":"11:03","startHours":10.046614682408714,"endHours":11.046614682408714,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:03","end":"12:03","startHours":11.046614682408714,"endHours":12.046614682408714,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:03","end":"13:03","startHours":12.046614682408714,"endHours":13.046614682408714,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:03","end":"14:03","startHours":13.046614682408714,"endHours":14.046614682408714,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:03","end":"15:03","startHours":14.046614682408714,"endHours":15.046614682408714,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:03","end":"16:03","startHours":15.046614682408714,"endHours":16.046614682408716,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:03","end":"17:03","startHours":16.046614682408716,"endHours":17.046614682408716,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:03","end":"18:03","startHours":17.046614682408716,"endHours":18.046614682408716,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:03","end":"19:03","startHours":18.046614682408716,"endHours":19.046614682408716,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:03","end":"20:03","startHours":19.046614682408716,"endHours":20.046614682408716,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:03","end":"21:03","startHours":20.046614682408716,"endHours":21.046614682408716,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:03","end":"22:03","startHours":21.046614682408716,"endHours":22.046614682408716,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:03","end":"23:03","startHours":22.046614682408716,"endHours":23.046614682408716,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:03","end":"00:03","startHours":23.046614682408716,"endHours":24.046614682408716,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:03","end":"01:03","startHours":24.046614682408716,"endHours":25.046614682408716,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:03","end":"02:03","startHours":25.046614682408716,"endHours":26.046614682408716,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:03","end":"03:03","startHours":26.046614682408716,"endHours":27.046614682408716,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:03","end":"04:03","startHours":27.046614682408716,"endHours":28.046614682408716,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:03","end":"05:03","startHours":28.046614682408716,"endHours":29.046614682408716,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:03","end":"06:03","startHours":29.046614682408716,"endHours":30.046614682408716,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:03","end":"07:03","startHours":30.046614682408716,"endHours":31.046614682408716,"planetary_lord":"Venus"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-16.91503263600692,"eotMinutes":-13.836337187389248,"ayanamsa":23.8263}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","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 Śukla Ṣaṣṭhī · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7, 6.34-35.","step_count":5,"url":"/walk/chandra-walk","steps":[{"label":"BG 6.5","url":"/bhagavad-gita/6/5","purpose":"Lift the self by the Self; begin the walk with inner responsibility."},{"label":"BG 6.6","url":"/bhagavad-gita/6/6","purpose":"See the mind as friend when mastered and enemy when unmastered."},{"label":"BG 6.7","url":"/bhagavad-gita/6/7","purpose":"Stabilize the conquered mind in heat/cold, honor/dishonor, pleasure/pain."},{"label":"BG 6.34","url":"/bhagavad-gita/6/34","purpose":"Name the restless mind honestly before trying to discipline it."},{"label":"BG 6.35","url":"/bhagavad-gita/6/35","purpose":"Complete with abhyāsa and vairāgya: practice and detachment."}]},"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 February 2, 1998 CE · Chicago, USA · Vidhyamitra","description":"February 2, 1998 CE for Chicago, USA: Śukla Ṣaṣṭhī, sūryodaya 07:03, sūryāsta 17:06.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/1998-02-02","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/1998-02-02","sa":"https://sa.vidhyamitra.com/city/chicago/1998-02-02","hi":"https://hi.vidhyamitra.com/city/chicago/1998-02-02","x-default":"https://vidhyamitra.com/city/chicago/1998-02-02"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-06T11:05:41.377Z","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":"2026-09-06T11:05:41.377Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-06T11:05:41.377Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}