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Table A.1
Detailed result of visual inspection of DR12 quasar targets for each target selection bit.
| Selection | Maskbits | # Objects | # QSO | # QSO z> 2.15 | # STAR | # GALAXY | # ? | # BAD |
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| BOSS_TARGET1 | ||||||||
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| QSO_CORE | 10 | 3410 | 1335 | 1070 | 1970 | 67 | 30 | 8 |
| QSO_BONUS | 11 | 4212 | 773 | 455 | 3311 | 87 | 31 | 10 |
| QSO_KNOWN_MIDZ | 12 | 20 249 | 20 121 | 19 949 | 37 | 2 | 44 | 45 |
| QSO_KNOWN_LOHIZ | 13 | 57 | 57 | 1 | 0 | 0 | 0 | 0 |
| QSO_NN | 14 | 212 531 | 143 118 | 114 815 | 64 981 | 1998 | 1173 | 1261 |
| QSO_UKIDSS | 15 | 47 | 27 | 22 | 18 | 2 | 0 | 0 |
| QSO_LIKE_COADD | 16 | 1326 | 314 | 228 | 889 | 53 | 52 | 18 |
| QSO_LIKE | 17 | 113 240 | 69 037 | 47 675 | 40 069 | 2127 | 1044 | 963 |
| QSO_FIRST_BOSS | 18 | 8607 | 6879 | 4655 | 745 | 356 | 533 | 94 |
| QSO_KDE | 19 | 238 770 | 145 345 | 111 257 | 87 802 | 2681 | 1538 | 1404 |
| QSO_CORE_MAIN | 40 | 187 229 | 122 692 | 101 556 | 59 745 | 2008 | 1448 | 1336 |
| QSO_BONUS_MAIN | 41 | 394 278 | 218 871 | 164 897 | 158 618 | 9195 | 4217 | 3377 |
| QSO_CORE_ED | 42 | 34 453 | 23 083 | 19 578 | 10 491 | 287 | 281 | 311 |
| QSO_CORE_LIKE | 43 | 36 998 | 27 495 | 20 008 | 8485 | 480 | 253 | 285 |
| QSO_KNOWN_SUPPZ | 44 | 57 | 57 | 1 | 0 | 0 | 0 | 0 |
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| ANCILLARY_TARGET1 | ||||||||
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| BLAZGVAR | 6 | 2 | 1 | 0 | 0 | 0 | 1 | 0 |
| BLAZR | 7 | 6 | 2 | 0 | 0 | 4 | 0 | 0 |
| BLAZXR | 8 | 610 | 203 | 12 | 36 | 333 | 36 | 2 |
| BLAZXRSAL | 9 | 3 | 3 | 1 | 0 | 0 | 0 | 0 |
| BLAZXRVAR | 10 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
| XMMBRIGHT | 11 | 623 | 489 | 29 | 15 | 114 | 5 | 0 |
| XMMGRIZ | 12 | 97 | 28 | 14 | 30 | 24 | 14 | 1 |
| XMMHR | 13 | 748 | 242 | 22 | 33 | 446 | 24 | 3 |
| XMMRED | 14 | 520 | 95 | 6 | 65 | 354 | 2 | 4 |
| FBQSBAL | 15 | 12 | 11 | 4 | 0 | 0 | 1 | 0 |
| LBQSBAL | 16 | 6 | 6 | 0 | 0 | 0 | 0 | 0 |
| ODDBAL | 17 | 32 | 24 | 8 | 1 | 1 | 6 | 0 |
| OTBAL | 18 | 15 | 2 | 0 | 0 | 0 | 13 | 0 |
| PREVBAL | 19 | 15 | 15 | 5 | 0 | 0 | 0 | 0 |
| VARBAL | 20 | 1470 | 1460 | 577 | 0 | 0 | 5 | 5 |
| QSO_AAL | 22 | 476 | 472 | 2 | 1 | 1 | 1 | 1 |
| QSO_AALS | 23 | 852 | 846 | 54 | 0 | 1 | 1 | 4 |
| QSO_IAL | 24 | 278 | 277 | 3 | 0 | 0 | 1 | 0 |
| QSO_RADIO | 25 | 235 | 231 | 11 | 1 | 0 | 1 | 2 |
| QSO_RADIO_AAL | 26 | 140 | 140 | 0 | 0 | 0 | 0 | 0 |
| QSO_RADIO_IAL | 27 | 74 | 73 | 1 | 0 | 0 | 1 | 0 |
| QSO_NOAALS | 28 | 66 | 66 | 1 | 0 | 0 | 0 | 0 |
| QSO_GRI | 29 | 1948 | 704 | 675 | 517 | 391 | 147 | 189 |
| QSO_HIZ | 30 | 475 | 1 | 1 | 394 | 5 | 16 | 59 |
| QSO_RIZ | 31 | 1344 | 87 | 83 | 1002 | 153 | 69 | 33 |
| BLAZGRFLAT | 50 | 102 | 59 | 8 | 10 | 7 | 22 | 4 |
| BLAZGRQSO | 51 | 119 | 77 | 19 | 15 | 3 | 24 | 0 |
| BLAZGX | 52 | 16 | 4 | 0 | 10 | 1 | 1 | 0 |
| BLAZGXQSO | 53 | 55 | 51 | 2 | 0 | 3 | 1 | 0 |
| BLAZGXR | 54 | 166 | 56 | 4 | 17 | 36 | 57 | 0 |
| BLAZXR | 55 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CXOBRIGHT | 58 | 188 | 130 | 5 | 3 | 50 | 5 | 0 |
| CXORED | 59 | 29 | 8 | 2 | 6 | 9 | 5 | 1 |
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| ANCILLARY_TARGET2 | ||||||||
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| HIZQSO82 | 0 | 62 | 2 | 2 | 55 | 1 | 0 | 4 |
| HIZQSOIR | 1 | 109 | 2 | 1 | 101 | 0 | 3 | 3 |
| KQSO_BOSS | 2 | 181 | 86 | 40 | 87 | 4 | 3 | 1 |
| QSO_VAR | 3 | 1394 | 877 | 313 | 429 | 85 | 0 | 3 |
| QSO_VAR_FPG | 4 | 607 | 589 | 306 | 5 | 3 | 6 | 4 |
| RADIO_2LOBE_QSO | 5 | 1133 | 590 | 63 | 345 | 113 | 62 | 23 |
| QSO_SUPPZ | 7 | 4933 | 4910 | 24 | 2 | 0 | 6 | 15 |
| QSO_VAR_SDSS | 8 | 24 361 | 90 43 | 4223 | 13 810 | 367 | 702 | 439 |
| QSO_WISE_SUPP | 9 | 5474 | 3262 | 1107 | 1726 | 329 | 134 | 23 |
| QSO_WISE_FULL_SKY | 10 | 26 966 | 25 881 | 16 651 | 309 | 450 | 201 | 125 |
| DISKEMITTER_REPEAT | 13 | 92 | 92 | 0 | 0 | 0 | 0 | 0 |
| WISE_BOSS_QSO | 14 | 20 898 | 19 333 | 3867 | 395 | 933 | 115 | 122 |
| QSO_XD_KDE_PAIR | 15 | 628 | 363 | 23 | 232 | 21 | 5 | 7 |
| TDSS_PILOT | 24 | 859 | 243 | 63 | 598 | 6 | 3 | 9 |
| SPIDERS_PILOT | 25 | 363 | 250 | 12 | 7 | 62 | 25 | 19 |
| TDSS_SPIDERS_PILOT | 26 | 107 | 107 | 6 | 0 | 0 | 0 | 0 |
| QSO_VAR_LF | 27 | 2401 | 1595 | 187 | 396 | 302 | 70 | 38 |
| QSO_EBOSS_W3_ADM | 31 | 3517 | 799 | 218 | 1931 | 637 | 107 | 43 |
| XMM_PRIME | 32 | 2422 | 1562 | 220 | 68 | 477 | 202 | 113 |
| XMM_SECOND | 33 | 648 | 209 | 63 | 47 | 288 | 59 | 45 |
| SEQUELS_TARGET | 53 | 36 263 | 20 333 | 3410 | 10 212 | 4477 | 702 | 539 |
| RM_TILE1 | 54 | 227 | 218 | 21 | 1 | 1 | 0 | 7 |
| RM_TILE2 | 55 | 615 | 615 | 172 | 0 | 0 | 0 | 0 |
| QSO_DEEP | 56 | 2484 | 363 | 97 | 420 | 321 | 365 | 1015 |
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| EBOSS_TARGET0 | ||||||||
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| QSO_EBOSS_CORE | 10 | 19 461 | 16 321 | 1208 | 679 | 1629 | 488 | 344 |
| QSO_PTF | 11 | 13 232 | 7485 | 935 | 3602 | 1776 | 175 | 194 |
| QSO_REOBS | 12 | 1368 | 1368 | 1365 | 0 | 0 | 0 | 0 |
| QSO_EBOSS_KDE | 13 | 11 843 | 9958 | 274 | 637 | 1031 | 86 | 131 |
| QSO_EBOSS_FIRST | 14 | 293 | 225 | 30 | 14 | 20 | 27 | 7 |
| QSO_BAD_BOSS | 15 | 59 | 23 | 7 | 2 | 1 | 32 | 1 |
| QSO_BOSS_TARGET | 16 | 59 | 23 | 7 | 2 | 1 | 32 | 1 |
| QSO_SDSS_TARGET | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| QSO_KNOWN | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SPIDERS_RASS_AGN | 20 | 162 | 49 | 1 | 52 | 56 | 1 | 4 |
| SPIDERS_ERASS_AGN | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| TDSS_A | 30 | 9418 | 4086 | 377 | 4906 | 290 | 41 | 95 |
| TDSS_FES_DE | 31 | 42 | 42 | 0 | 0 | 0 | 0 | 0 |
| TDSS_FES_NQHISN | 33 | 74 | 73 | 0 | 0 | 0 | 1 | 0 |
| TDSS_FES_MGII | 34 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| TDSS_FES_VARBAL | 35 | 62 | 62 | 18 | 0 | 0 | 0 | 0 |
| SEQUELS_PTF_VARIABLE | 40 | 701 | 32 | 7 | 550 | 112 | 2 | 5 |
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