The fourth data release of the Kilo-Degree Survey: ugri imaging and nine-band optical-IR photometry over 1000 square degrees

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Volume 625 (May 2019)

A&A, 625 (2019) A2

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Table A.5.

Bit values of the nine-band MASK parameter.

Bit	Meaning
0	THELI manual mask (very conservative)
1	THELI automatic large star halo mask (faint) ^(a)
2	THELI automatic large star halo mask (bright) or star mask ^(b)
3	manual mask of regions around globular clusters, Fornax dwarf, ISS
4	THELI weight=0, or void mask, or asteroids
5	VIKING Z band masked ^(c)
6	VIKING Y band masked
7	VIKING J band masked
8	VIKING H band masked
9	VIKING K_s band masked
10	ASTRO-WISEu band halo+stellar PULECENELLA mask or weight = 0
11	ASTRO-WISEg band halo+stellar PULECENELLA mask or weight = 0
12	ASTRO-WISEr band halo+stellar PULECENELLA mask ^(d) or weight = 0
13	ASTRO-WISEi band halo+stellar PULECENELLA mask or weight = 0
14	Object outside the RA/Dec cut for its tile
15	Reserved (used for sign in FITS 2-byte integer)

Notes.

^(a)

Haloes from stars with 10.5 < m_r < 11.5 in UCAC4/GSC1 stellar catalog.

^(b)

Stars with m_r < 14 or haloes from stars with m_r < 10.5 in UCAC4/GSC1.

^(c)

The VIKING masks are described in Wright et al. (2018).

^(d)

Note that these tend to more conservative than the THELI flag in bit 2.

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