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Table A.3.

General information about the spectroscopic observations of AT 2018hso.

Date MJD Phase (a) Telescope+Instrument Grism+Slit Spectral range Resolution Exp. time
(days) (Å) (Å) (s)
20181105 58 427.2 −3.8 NOT+ALFOSC gm4+1.0″ 3400–9650 15 1670
20181120 58 442.3 +11.3 NOT+ALFOSC gm4+1.0″ 3500–9630 15 3600
20181210 58 462.2 +31.2 NOT+ALFOSC gm4+1.0″ 3400–9600 15 3600
20181212 58 464.3 +33.3 NOT+ALFOSC gm4+1.3″ 3400–9600 18 3600
20181229 58 481.2 +50.2 NOT+ALFOSC gm4+1.0″ 3400–9600 15 3600
20190123 58 506.2 +75.2 NOT+ALFOSC gm4+1.0″ 3400–9650 15 3600
20190228 58 542.0 +111.0 NOT+ALFOSC gm4+1.0″ 3400–9650 15 3600
20190315 58 557.1 +126.1 NOT+ALFOSC gm4+1.0″ 3400–9650 15 3600
20190409 58 582.0 +151.0 NOT+ALFOSC gm4+1.0″ 4000–9600 15 3600
20190428 58 602.0 +171.0 NOT+ALFOSC gm4+1.0″ 3600–9600 15 3600
20190629 58 663.9 +232.9 GTC+OSIRIS R1000R+1.0″ 5100–10350 8 3 × 1800

Notes.

(a)

Phases are relative to the r-band maximum (MJDAT2018hso = 58 431.0 ± 1.0).

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