February 2018 Amavasya Tharpanam Sankalpam Mantras are given here. In February 2018, Amavasya date is 15 February.
Amavasya of February 2018 is Amavasya of Magha Month, Falgun Month, Maasi Masam, Kumbha Masam in Amavasyant Chandramana Panchangams of South India (& Gujarat, Maharashtra), North Indian Hindi calendars, Tamil calendars and Malayalam calendars respectively.
15 February 2018 – Sarva Amavasya
Hevilambinama samvathsare ,Utharayane , Shishira rithou, khumba mase , Krishna pakshe, adhya Amavasyam punya thidhou , Guru vasara yukthayam, Sravana nakshatra yukthayam, shubhayoga, shubhaKarana evam guna viseshena, visishtayam asyam Amavasyam punya thidhou, amavasya punyakale, darsa sradham , thilatharpana roopena adhya karishye
(Amavasya up to 2.37 aM next day (afterwards Prathama) and Sravana Nakshtra up to 7.32 Am that day and afterwards Dhanishta Nakshatra.