{"id":"vidhyamitra:city-day:vellore:2002-01-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vellore/2002-01-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2002-01-21","date_display":"January 21, 2002 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":2002,"month":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452295.770833,"kali_year":5103,"ahargana":1863830.2708,"sun":{"sidereal_longitude":276.8681,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":2.0965,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":85.2284,"elapsed_within_tithi_degrees":1.2284},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":2.0965,"elapsed_within_degrees":2.0965},"yoga":{"number":21,"name":"Siddha","sum_longitude":278.9645},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"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":2002,"month":1,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452295.770833,"ahargana":1863830.2708,"kali_year":5103,"ayanamsa_lahiri":23.8817,"grahas":{"sun":{"sidereal_longitude":276.937325,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":359.091825,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false,"latitude":-4.016},"mars":{"sidereal_longitude":337.649325,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":290.16312500000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":74.10672499999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":278.49142499999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":44.34702500000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":65.3029,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":245.3029,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":2002,"month":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452295.770833,"kali_year":5103,"ahargana":1863830.2708,"sun":{"sidereal_longitude":276.8681,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":2.0965,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":85.2284,"elapsed_within_tithi_degrees":1.2284},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":2.0965,"elapsed_within_degrees":2.0965},"yoga":{"number":21,"name":"Siddha","sum_longitude":278.9645},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.016,"elongation":85.228},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.016,"opposition_distance":94.772}},"eclipse_window_40days":[]},"city":{"slug":"vellore","name":"Vellore, Tamil Nadu","lat":12.9165,"lon":79.1325,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"vellore","name":"Vellore, Tamil Nadu","lat":12.9165,"lon":79.1325,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:40","sunsetLocal":"18:09","solarNoonLocal":"12:25","dayLengthHours":11.484130081914294,"dayLengthDisplay":"11 Hours 29 Mins 03 Secs","nightLengthDisplay":"12 Hours 30 Mins 57 Secs","moonriseLocal":"11:43","moonsetLocal":"00:04","rahuKala":{"name":"Rāhu Kāla","start":"08:06","end":"09:32","startHours":8.10554674010101,"endHours":9.541063000340298,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:59","end":"12:25","startHours":10.976579260579584,"endHours":12.41209552081887,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:51","end":"15:17","startHours":13.847611781058157,"endHours":15.283128041297445,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:21","end":"09:44","startHours":9.349660832308391,"endHours":9.732465168372201,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:09","end":"07:27","startHours":7.148535899941486,"endHours":7.454779368792534,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:48","startHours":12.02929118475506,"endHours":12.79489985688268,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:08","end":"05:54","startHours":5.138813135606484,"endHours":5.904421807734104,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:43","end":"06:40","startHours":5.713019639702199,"endHours":6.670030479861723,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:20","end":"15:06","startHours":14.326117201137919,"endHours":15.091725873265538,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.954160561776018,"endHours":18.354160561776016,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:38","startHours":18.154160561776017,"endHours":18.63266598185578,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.904160561776017,"endHours":19.654160561776017,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:48","startHours":24.02929118475506,"endHours":24.79489985688268,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:40","end":"08:06","startHours":6.670030479861723,"endHours":8.10554674010101,"quality":"auspicious"},{"name":"Kāla","start":"08:06","end":"09:32","startHours":8.10554674010101,"endHours":9.541063000340298,"quality":"inauspicious"},{"name":"Śubha","start":"09:32","end":"10:59","startHours":9.541063000340298,"endHours":10.976579260579584,"quality":"auspicious"},{"name":"Roga","start":"10:59","end":"12:25","startHours":10.976579260579584,"endHours":12.41209552081887,"quality":"inauspicious"},{"name":"Udveg","start":"12:25","end":"13:51","startHours":12.41209552081887,"endHours":13.847611781058157,"quality":"inauspicious"},{"name":"Chala","start":"13:51","end":"15:17","startHours":13.847611781058157,"endHours":15.283128041297445,"quality":"neutral"},{"name":"Labha","start":"15:17","end":"16:43","startHours":15.283128041297445,"endHours":16.71864430153673,"quality":"auspicious"},{"name":"Amṛta","start":"16:43","end":"18:09","startHours":16.71864430153673,"endHours":18.154160561776017,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:09","end":"19:43","startHours":18.154160561776017,"endHours":19.71864430153673,"quality":"neutral"},{"name":"Labha","start":"19:43","end":"21:17","startHours":19.71864430153673,"endHours":21.283128041297445,"quality":"auspicious"},{"name":"Amṛta","start":"21:17","end":"22:51","startHours":21.283128041297445,"endHours":22.847611781058156,"quality":"auspicious"},{"name":"Kāla","start":"22:51","end":"00:25","startHours":22.847611781058156,"endHours":24.41209552081887,"quality":"inauspicious"},{"name":"Śubha","start":"00:25","end":"01:59","startHours":24.41209552081887,"endHours":25.976579260579584,"quality":"auspicious"},{"name":"Roga","start":"01:59","end":"03:32","startHours":25.976579260579584,"endHours":27.541063000340294,"quality":"inauspicious"},{"name":"Udveg","start":"03:32","end":"05:06","startHours":27.541063000340294,"endHours":29.10554674010101,"quality":"inauspicious"},{"name":"Chala","start":"05:06","end":"06:40","startHours":29.10554674010101,"endHours":30.670030479861722,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:40","end":"07:40","startHours":6.670030479861723,"endHours":7.670030479861723,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:40","end":"08:40","startHours":7.670030479861723,"endHours":8.670030479861722,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:40","end":"09:40","startHours":8.670030479861722,"endHours":9.670030479861722,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:40","end":"10:40","startHours":9.670030479861722,"endHours":10.670030479861722,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:40","end":"11:40","startHours":10.670030479861722,"endHours":11.670030479861722,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:40","end":"12:40","startHours":11.670030479861722,"endHours":12.670030479861722,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:40","end":"13:40","startHours":12.670030479861722,"endHours":13.670030479861722,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:40","end":"14:40","startHours":13.670030479861722,"endHours":14.670030479861722,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:40","end":"15:40","startHours":14.670030479861722,"endHours":15.670030479861722,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:40","end":"16:40","startHours":15.670030479861722,"endHours":16.670030479861722,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:40","end":"17:40","startHours":16.670030479861722,"endHours":17.670030479861722,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:40","end":"18:40","startHours":17.670030479861722,"endHours":18.670030479861722,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:40","end":"19:40","startHours":18.670030479861722,"endHours":19.670030479861722,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:40","end":"20:40","startHours":19.670030479861722,"endHours":20.670030479861722,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:40","end":"21:40","startHours":20.670030479861722,"endHours":21.670030479861722,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:40","end":"22:40","startHours":21.670030479861722,"endHours":22.670030479861722,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:40","end":"23:40","startHours":22.670030479861722,"endHours":23.670030479861722,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:40","end":"00:40","startHours":23.670030479861722,"endHours":24.670030479861722,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:40","end":"01:40","startHours":24.670030479861722,"endHours":25.670030479861722,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:40","end":"02:40","startHours":25.670030479861722,"endHours":26.670030479861722,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:40","end":"03:40","startHours":26.670030479861722,"endHours":27.670030479861722,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:40","end":"04:40","startHours":27.670030479861722,"endHours":28.670030479861722,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:40","end":"05:40","startHours":28.670030479861722,"endHours":29.670030479861722,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:40","end":"06:40","startHours":29.670030479861722,"endHours":30.670030479861722,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","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":"Saumya","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-19.972469968639178,"eotMinutes":-11.255731249132124,"ayanamsa":23.8817}},"calendars":{"vikram_samvat":2059,"vikram_samvatsara":"Manmatha","saka_samvat":1924,"saka_samvatsara":"Citrabhānu","bengali_samvat":1409,"malayalam_era":1178,"nanakshahi_year":533,"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":"Makara (Tai)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Aṣṭamī · Vikram 2059 Manmatha · Śaka 1924 Citrabhānu"},"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":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","relevance":0.5},{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"vellore"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 21, 2002 CE · Vellore, Tamil Nadu · Vidhyamitra","description":"January 21, 2002 CE for Vellore, Tamil Nadu: Śukla Aṣṭamī, sūryodaya 06:40, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vellore/2002-01-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vellore/2002-01-21","sa":"https://sa.vidhyamitra.com/city/vellore/2002-01-21","hi":"https://hi.vidhyamitra.com/city/vellore/2002-01-21","x-default":"https://vidhyamitra.com/city/vellore/2002-01-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T10:45:44.734Z","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":"2026-06-02T10:45:44.734Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T10:45:44.734Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}