Open Access

Table A.2.

List of 4FGL associated sources observing information.

4FGL Source Name Obs. Date R mag Exp. time E(B-V) SNR Airmass Seeing
yyyy-mm-dd s "
J0128.2+4400 2023-01-26 20.2 5400 0.0651 2 1.37 1.2
J0138.6+2923 2022-11-20 19.8 5400 0.0425 8 1.07 3
J0304.5+3349 2022-11-19 18.9 3600 0.3007 10 1.01 1.3
J0328.9+3514 2023-01-25 17.3 1800 0.2200 66 1.17 1.3
J0429.8+2843 2022-11-19 20.8 7200 0.7408 8 1.13 1.6
J0436.2−0038 2023-01-26 18.4 3600 0.0375 15 1.36 1.2
J0539.7−0521c 2023-01-25 18.7 3600 0.1784 30 1.26 1.22
J0614.8+6136 2023-01-24 19.9 5400 0.1909 12 1.19 1.3
J0704.7+4508 2023-01-26 18.2 2400 0.0881 25 1.28 1.2
J0713.0+5738 2023-01-25 19.0 2400 0.0461 7 1.15 1.8
J0733.0+4915 2023-01-24 19.6 3600 0.0747 10 1.44 1.6
J0746.5−0710 2023-01-25 18.9 2400 0.0957 6 1.54 1.8
J1054.5+2211 2023-01-24 17.2 3600 0.0138 93 1.08 1.6
J1229.1+5521 2023-01-26 17.9 2400 0.0110 72 1.12 1.2
J1517.0+2639 2023-06-22 19.5 3600 0.0297 4 1.01 0.7
J1556.6+1417 2023-06-23 20.2 2400 0.0388 7 1.06 0.7
J1754.7+3444 2023-06-23 19.6 1800 0.0321 10 1.02 0.7
J1959.0+3844 2023-06-22, 23 20.2 3000 0.5232 5 1.09, 1.07 0.5, 0.6
J2000.0+4214 2023-06-22 19.4 5400 0.3741 20 1.20 0.6
J2120.7+4428 2023-06-22 21.7 3600 0.5558 3 1.13 0.8
J2139.1+3724 2022-11-20 20.1 5400 0.0496 7 1.07 2
J2317.0+3756 2022-11-19 19.9 3600 0.1340 4 1.11 1.6

Notes. Column information are as follows: (1) 4FGL source name; (2) date of observation (yyyy-mm-dd); (3) apparent R-band magnitude; (4) exposure time in seconds; (5) reddening E(B - V) in mag; (6) mean signal-to-noise ratio of the spectrum; (7) airmass and (8) mean seeing of the exposure in arcsec.

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