{"id":"vidhyamitra:city-day:kozhikode:1998-01-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kozhikode/1998-01-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-01-04","date_display":"January 4, 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":"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":1998,"month":1,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450817.770833,"kali_year":5099,"ahargana":1862352.2708,"sun":{"sidereal_longitude":259.4429,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":327.7528,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":68.3099,"elapsed_within_tithi_degrees":8.3099},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":327.7528,"elapsed_within_degrees":7.7528},"yoga":{"number":18,"name":"Varīyān","sum_longitude":227.1958},"karana":{"half_tithi_index":11,"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":1998,"month":1,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450817.770833,"ahargana":1862352.2708,"kali_year":5099,"ayanamsa_lahiri":23.8252,"grahas":{"sun":{"sidereal_longitude":259.64569600000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":329.22399599999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false,"latitude":-0.3244},"mars":{"sidereal_longitude":289.353696,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":236.753696,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":299.050396,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":278.72349600000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":349.993196,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":143.6144,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":323.6144,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1998,"month":1,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450817.770833,"kali_year":5099,"ahargana":1862352.2708,"sun":{"sidereal_longitude":259.4429,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":327.7528,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":68.3099,"elapsed_within_tithi_degrees":8.3099},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":327.7528,"elapsed_within_degrees":7.7528},"yoga":{"number":18,"name":"Varīyān","sum_longitude":227.1958},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.324,"elongation":68.31},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.324,"opposition_distance":111.69}},"eclipse_window_40days":[]},"city":{"slug":"kozhikode","name":"Kozhikode (Calicut), Kerala","lat":11.2588,"lon":75.7804,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"kozhikode","name":"Kozhikode (Calicut), Kerala","lat":11.2588,"lon":75.7804,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"sunriseLocal":"06:47","sunsetLocal":"18:16","solarNoonLocal":"12:32","dayLengthHours":11.48453147974572,"dayLengthDisplay":"11 Hours 29 Mins 04 Secs","nightLengthDisplay":"12 Hours 30 Mins 56 Secs","moonriseLocal":"11:10","moonsetLocal":"23:10","rahuKala":{"name":"Rāhu Kāla","start":"16:50","end":"18:16","startHours":16.83840441932708,"endHours":18.273970854295296,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:32","end":"13:58","startHours":12.531705114422437,"endHours":13.967271549390652,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:24","end":"16:50","startHours":15.402837984358866,"endHours":16.83840441932708,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:51","startHours":9.469163386490244,"endHours":9.85198110248177,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:16","end":"07:34","startHours":7.267961519538982,"endHours":7.574215692332201,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:55","startHours":12.148887398430913,"endHours":12.91452283041396,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:15","end":"06:01","startHours":5.258168510583481,"endHours":6.023803942566529,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:50","end":"06:47","startHours":5.832395084570767,"endHours":6.789439374549577,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:27","end":"15:13","startHours":14.445793694380058,"endHours":15.211429126363106,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:04","end":"18:28","startHours":18.073970854295297,"endHours":18.473970854295295,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:16","end":"18:45","startHours":18.273970854295296,"endHours":18.7524929992847,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:01","end":"19:46","startHours":18.023970854295296,"endHours":19.773970854295296,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:55","startHours":24.14888739843091,"endHours":24.91452283041396,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:47","end":"08:14","startHours":6.789439374549577,"endHours":8.225005809517793,"quality":"inauspicious"},{"name":"Chala","start":"08:14","end":"09:40","startHours":8.225005809517793,"endHours":9.660572244486007,"quality":"neutral"},{"name":"Labha","start":"09:40","end":"11:06","startHours":9.660572244486007,"endHours":11.09613867945422,"quality":"auspicious"},{"name":"Amṛta","start":"11:06","end":"12:32","startHours":11.09613867945422,"endHours":12.531705114422437,"quality":"auspicious"},{"name":"Kāla","start":"12:32","end":"13:58","startHours":12.531705114422437,"endHours":13.967271549390652,"quality":"inauspicious"},{"name":"Śubha","start":"13:58","end":"15:24","startHours":13.967271549390652,"endHours":15.402837984358866,"quality":"auspicious"},{"name":"Roga","start":"15:24","end":"16:50","startHours":15.402837984358866,"endHours":16.83840441932708,"quality":"inauspicious"},{"name":"Udveg","start":"16:50","end":"18:16","startHours":16.83840441932708,"endHours":18.273970854295296,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:16","end":"19:50","startHours":18.273970854295296,"endHours":19.83840441932708,"quality":"auspicious"},{"name":"Roga","start":"19:50","end":"21:24","startHours":19.83840441932708,"endHours":21.402837984358868,"quality":"inauspicious"},{"name":"Udveg","start":"21:24","end":"22:58","startHours":21.402837984358868,"endHours":22.967271549390652,"quality":"inauspicious"},{"name":"Chala","start":"22:58","end":"00:32","startHours":22.967271549390652,"endHours":24.531705114422437,"quality":"neutral"},{"name":"Labha","start":"00:32","end":"02:06","startHours":24.531705114422437,"endHours":26.09613867945422,"quality":"auspicious"},{"name":"Amṛta","start":"02:06","end":"03:40","startHours":26.09613867945422,"endHours":27.660572244486005,"quality":"auspicious"},{"name":"Kāla","start":"03:40","end":"05:14","startHours":27.660572244486005,"endHours":29.225005809517793,"quality":"inauspicious"},{"name":"Śubha","start":"05:14","end":"06:47","startHours":29.225005809517793,"endHours":30.789439374549577,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:47","end":"07:47","startHours":6.789439374549577,"endHours":7.789439374549577,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:47","end":"08:47","startHours":7.789439374549577,"endHours":8.789439374549577,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:47","end":"09:47","startHours":8.789439374549577,"endHours":9.789439374549577,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:47","end":"10:47","startHours":9.789439374549577,"endHours":10.789439374549577,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:47","end":"11:47","startHours":10.789439374549577,"endHours":11.789439374549577,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:47","end":"12:47","startHours":11.789439374549577,"endHours":12.789439374549577,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:47","end":"13:47","startHours":12.789439374549577,"endHours":13.789439374549577,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:47","end":"14:47","startHours":13.789439374549577,"endHours":14.789439374549577,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:47","end":"15:47","startHours":14.789439374549577,"endHours":15.789439374549577,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:47","end":"16:47","startHours":15.789439374549577,"endHours":16.789439374549577,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:47","end":"17:47","startHours":16.789439374549577,"endHours":17.789439374549577,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:47","end":"18:47","startHours":17.789439374549577,"endHours":18.789439374549577,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:47","end":"19:47","startHours":18.789439374549577,"endHours":19.789439374549577,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:47","end":"20:47","startHours":19.789439374549577,"endHours":20.789439374549577,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:47","end":"21:47","startHours":20.789439374549577,"endHours":21.789439374549577,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:47","end":"22:47","startHours":21.789439374549577,"endHours":22.789439374549577,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:47","end":"23:47","startHours":22.789439374549577,"endHours":23.789439374549577,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:47","end":"00:47","startHours":23.789439374549577,"endHours":24.789439374549577,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:47","end":"01:47","startHours":24.789439374549577,"endHours":25.789439374549577,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:47","end":"02:47","startHours":25.789439374549577,"endHours":26.789439374549577,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:47","end":"03:47","startHours":26.789439374549577,"endHours":27.789439374549577,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:47","end":"04:47","startHours":27.789439374549577,"endHours":28.789439374549577,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:47","end":"05:47","startHours":28.789439374549577,"endHours":29.789439374549577,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:47","end":"06:47","startHours":29.789439374549577,"endHours":30.789439374549577,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"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":-22.754922823855598,"eotMinutes":-5.02390686534617,"ayanamsa":23.8252}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"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 Ṣaṣṭhī · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[],"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":[]},"validity":{"eternal":false,"location_specific":"kozhikode"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 4, 1998 CE · Kozhikode (Calicut), Kerala · Vidhyamitra","description":"January 4, 1998 CE for Kozhikode (Calicut), Kerala: Śukla Ṣaṣṭhī, sūryodaya 06:47, sūryāsta 18:16.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kozhikode/1998-01-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kozhikode/1998-01-04","sa":"https://sa.vidhyamitra.com/city/kozhikode/1998-01-04","hi":"https://hi.vidhyamitra.com/city/kozhikode/1998-01-04","x-default":"https://vidhyamitra.com/city/kozhikode/1998-01-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T20:28:08.709Z","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":"2026-06-02T20:28:08.709Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T20:28:08.709Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}