Open Access

Table B.1.

Log of spectroscopic observations.

SN 2020ue
MJD Phase Spectrograph Range Resolution
(days) (days) (Å) (Å)

58861.720 -12 FLOYDS 3500-10000 3.5
58865.650 -8 1.82m+Echelle 3792-7342 0.7
58867.550 -6 FLOYDS 3500-10000 3.5
58869.605 -4 1.22m+B&C 3561-8282 9
58869.624 -4 1.82m+AFOSC 3218-9296 14
58871.562 -2 1.82m+AFOSC 3270-9302 14
58871.950 -2 APF+Levy 3740-9700 100,000
58872.583 -1 1.82m+AFOSC 3294-9302 14
58876.730 +3 FLOYDS 3500-10000 3.5
58877.950 +4 APF+Levy 3740-9700 100,000
58879.580 +6 FLOYDS 3500-10000 3.5
58880.730 +7 1.82m+AFOSC 3158-9299 14
58881.594 +8 1.82m+AFOSC 3147-9298 14
58886.588 +13 1.22m+B&C 3285-8000 9
58891.503 +18 1.22m+B&C 3312-7893 9
58892.950 +19 APF+Levy 3740-9700 100,000
58893.750 +20 FLOYDS 3500-10000 3.5
58894.580 +21 1.82m+AFOSC 3148-9299 14
58899.643 +26 1.22m+B&C 3284-7999 9
58899.690 +26 FLOYDS 3500-10000 3.5
58907.560 +34 1.22m+B&C 3274-7988 9
58908.427 +35 1.82m+AFOSC 3151-9302 14
58926.476 +53 1.22m+B&C 3088-7800 9
58927.520 +54 FLOYDS 3500-10000 3.5
58928.426 +55 1.82m+AFOSC 5002-9306 14
58939.354 +66 1.82m+AFOSC 3149-9299 14
58944.510 +71 FLOYDS 3500-10000 3.5
58945.463 +72 1.82m+B&C 4996-9301 14
58949.452 +76 1.22m+B&C 3240-7951 9
58953.384 +80 1.82m+AFOSC 3149-9300 14
58960.500 +87 FLOYDS 3500-10000 3.5
58970.397 +97 1.82m+AFOSC 4998-9302 14
58977.490 +104 FLOYDS 3500-10000 3.5
58999.430 +126 FLOYDS 3500-10000 3.5
59018.350 +145 FLOYDS 3500-10000 3.5
59258.066 +384 Keck+LRIS 3162-10148 6.9

SN 2020nlb

MJD Phase Spectrograph Range Resolution
(days) (days) (Å) (Å)

59026.290 -16 FLOYDS 3500-10000 3.5
59029.250 -13 FLOYDS 3500-10000 3.5
59033.650 -9 APF+Levy 3740-9700 100,000
59036.900 -5 NOT+AlFOSC 3800-9000 16.2
59049.184 +7 Shane+KAST 3500-10000 16.2
59051.650 +9 APF+Levy 3740-9700 100,000
59054.884 +12 NOT+AlFOSC 3800-9000 16.2
59057.198 +15 Shane+KAST 3500-10000 16.2
59060.883 +18 NOT+AlFOSC 3800-9000 16.2
59070.190 +28 Shane+KAST 3500-10000 16.2
59127.750 +85 Shane+KAST 3500-5600 16.2
59189.529 +147 Shane+KAST 3500-5600 16.2

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