INT and IAC80 multi-band photometric follow up of SN2018hee

ATel #12235; J. Sanchez-Sierras (ULL), G. Panizo-Espinar (ULL), D. Moral-Pombo (ULL), E. A. Diaz-Suarez (ULL), A. Alvarez-Hernandez (ULL), A. Alvarez-Saavedra (ULL), P. Carro-Portos (ULL), R. M. Doblas-Cabezas (ULL), M. Fernandez-Torreiro (ULL), E. M. Garcia-Zamora (ULL), A. Hernandez-Garcia (ULL & IAC), M. Mallorquin (ULL), J. E. Mendez-Delgado (ULL & IAC), M. A. Nuñez-Cagigal (ULL & IAC), D. SanJulian-Jacques (ULL), H. Villegas-Beberide (ULL), L. Monteagudo (ING), I. Perez-Fournon (ULL & IAC)
on 21 Nov 2018; 14:49 UT
Credential Certification: Ismael Perez-Fournon (ipf@iac.es)

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We report multi-band photometry for the supernova SN2018hee based on CCD images taken with the Wide Field Camera of the Isaac Newton Telescope (Roque de los Muchachos Observatory, La Palma), from 2018 Oct 14.212 UT to 14.218 UT and with the CAMELOT camera of the IAC-80 telescope (Teide Observatory, Tenerife) on 2018 10 21.163. According to the magnitudes we report, the supernova was brighter than when discovered. The discovery of this supernova was reported to TNS by J.Tonry et al. on 2018 Oct 7. It was classified as SN Type Ia at redshift of z=0.034 by H. Kuncarayakti et al. (ATel #12107).

We report here the improved position based on the INT images, calibrated using the Gaia DR2 catalog. RA (J2000) = 03:38:40.349, Dec (J2000) = +07:39:48.83. The position is offset by 0.8 arcsec from the position given by J.Tonry et al (TNS). The INT Wide Field Camera and IAC-80 Camelot magnitudes of SN 2018hee, calibrated using PanSTARRS-1 are:

INT - Wide Field Camera:
r=17.44 +/- 0.02 (2018 Oct 14.218)
i=17.65 +/- 0.04 (2018 Oct 14.212)
g=17.24 +/- 0.02 (2018 Oct 14.215)

IAC-80 - Camelot:
g=17.67+/-0.02 (2018 Oct 21.163)

Based on observations made with the Isaac Newton Telescope operated on the island of La Palma by the Isaac Newton Group of Telescopes in the Observatorio del Roque de los Muchachos and with the IAC-80 telescope operated on the island of Tenerife by the Instituto de Astrofisica de Canarias in the Observatorio del Teide.

Prediscovery image (PanSTARRS-1)

INT Wide Field Camera Image