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Table A.1

ISIS/WHT and HRS/HET observing log.

Star g N exp × t exp Observing run Literature S/N
mag at 4500 Å

ISIS/WHT

SDSS J010505+461521 19.3 13 × 1200 s I 38
SDSS J014036+234458 15.8 2 × 1200 s I 1, 2 90
SDSS J021958084955 16.4 4 × 1200 s I 80
SDSS J040114051259 18.6 5 × 1800 s IV 2 37
SDSS J044655+113741 18.6 4 × 1200 s I 22
SDSS J063055+255243 18.1 4 × 1800 s IV 40
SDSS J075818+653906 17.7 6 × 1800 s IV 60
SDSS J101600+172901 16.6 1 × 1200 s II 33
SDSS J120441+120111 16.4 2 × 1800 s II 4 50
SDSS J123055+000547 14.8 1 × 600 s II 58
SDSS J132250+012343 16.3 1 × 2400 s III 4 60
SDSS J164234+443004 17.8 5 × 1800 s IV 39
SDSS J165618+342523 15.7 2 × 1800 s II 70
SDSS J183455+421328 19.1 4 × 1800 s I 24
SDSS J214633003910 18.1 5 × 1200 s I 2 40
SDSS J220646092545 15.4 2 × 1200 s I 110

2MASS J204523284235 14.0 1 × 1200 s II 1 118

HRS/HET

SDSS J014036+234458 15.8 4 × 1500 s 11/12 Dec. 2012 1,2 80 at 5500 Å
SDSS J021958084955 16.4 8 × 3400 s 6 Dec. 2012 /13 Feb. 2013 52 at 5500 Å

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