Table 1: Observational parameters and AO performances for NACO observations of SWAN fields. See the text for a full description of the entries. ^a CONICA was fitted with a new detector in June 2004. ^b The noise is that measured in the resulting co-added image, scaled to a 1 sec integration. Its statistical properties closely follow a Gaussian distribution with additional weak wings. ^c " $\theta _0$ '' refers to the isoplanatic angle in $K_{\rm s}$ band as measured fitting the variation of the Strehl ratio of the point sources in the fields as described in the text.
Name RA Dec Obs. $\Delta t$ $\sigma_{\rm image}$ ^b Mean Strehl N. of $\theta _0$ ^c

(J2000.0) (J2000.0) date^a (min) (e^- s^-1) airmass % stars ( $^{\prime\prime}$ )

(1)
(2) (3) (4) (5) (6) (7) (8) (9) (10)

SBSF 02
00 44 31.88 -29 52 30.3 07.09.04 54 0.29 1.08 - 2 5.90

SBSF 03 00 45 20.62 -29 56 46.0 08.09.04 54 0.29 1.24 - 2 11.20

SBSF 04 00 45 28.05 -29 31 40.1 09.12.04 68 0.28 1.22 33 2 10.65

SBSF 06 00 50 34.70 -29 26 32.0 09.09.04 54 0.33 1.17 24 0 [12.70]

SBSF 08 00 52 18.88 -29 27 17.8 12.09.04 56 0.32 1.09 42 1 12.00

SBSF 14 06 07 06.34 -13 13 37.1 15.12.02 60 0.22 1.20 - 4 11.95

SBSF 15 08 44 00.22 -16 34 01.1 17.12.02 60 0.25 1.12 46 10 21.78

SBSF 16 09 14 52.77 -19 26 17.0 18.12.02 50 0.25 1.07 - 1 12.84

SBSF 17 09 47 44.79 -21 37 12.7 20.03.03 44 0.28 1.05 35 2 10.61

SBSF 18 09 49 46.99 -21 45 13.3 17.12.02 40 0.30 1.06 - 7 21.18

SBSF 24 10 40 26.20 -30 00 36.5 21.03.03 60 0.24 1.02 30 8 11.77

SBSF 27 12 55 37.48 -31 42 41.3 11.04.04 44 0.30 1.07 35 12 17.85

SBSF 28 12 56 14.14 -42 09 10.9 11.04.04 44 0.27 1.26 42 2 9.94

SBSF 34 13 46 25.24 -31 45 47.5 11.04.04 44 0.28 1.36 28 2 4.89

SBSF 36 22 14 36.74 -28 25 31.6 05.09.03 60 0.23 1.09 35 2 13.25

SBSF 37 22 43 04.43 -39 49 29.3 06.09.03 60 0.23 1.10 34 0 [12.70]

SBSF 38 22 47 06.77 -40 10 01.3 05.09.03 60 0.22 1.04 31 2 10.68

SBSF 39 22 49 34.23 -39 33 05.3 15.06.03 60 0.24 1.04 22 1 10.00

SBSF 40 22 49 49.32 -39 53 15.0 12.06.03 48 0.34 1.04 10 0 12.70

SBSF 41 22 50 21.28 -40 07 38.6 14.06.03 60 0.26 1.04 33 3 19.72

SBSF 42 23 29 55.77 -18 35 54.1 16.06.03 60 0.24 1.03 35 0 [12.70]

**Table 1:** Observational parameters and AO performances for NACO observations of SWAN fields. See the text for a full description of the entries. ^a CONICA was fitted with a new detector in June 2004. ^b The noise is that measured in the resulting co-added image, scaled to a 1 sec integration. Its statistical properties closely follow a Gaussian distribution with additional weak wings. ^c " $\theta _0$ '' refers to the isoplanatic angle in $K_{\rm s}$ band as measured fitting the variation of the Strehl ratio of the point sources in the fields as described in the text.
Name	RA	Dec	Obs.	$\Delta t$	$\sigma_{\rm image}$ ^b	Mean	Strehl	N. of	$\theta _0$ ^c
	(J2000.0)	(J2000.0)	date^a	(min)	(e^- s^-1)	airmass	%	stars	( $^{\prime\prime}$ )
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
SBSF 02	00 44 31.88	-29 52 30.3	07.09.04	54	0.29	1.08	-	2	5.90
SBSF 03	00 45 20.62	-29 56 46.0	08.09.04	54	0.29	1.24	-	2	11.20
SBSF 04	00 45 28.05	-29 31 40.1	09.12.04	68	0.28	1.22	33	2	10.65
SBSF 06	00 50 34.70	-29 26 32.0	09.09.04	54	0.33	1.17	24	0	[12.70]
SBSF 08	00 52 18.88	-29 27 17.8	12.09.04	56	0.32	1.09	42	1	12.00
SBSF 14	06 07 06.34	-13 13 37.1	15.12.02	60	0.22	1.20	-	4	11.95
SBSF 15	08 44 00.22	-16 34 01.1	17.12.02	60	0.25	1.12	46	10	21.78
SBSF 16	09 14 52.77	-19 26 17.0	18.12.02	50	0.25	1.07	-	1	12.84
SBSF 17	09 47 44.79	-21 37 12.7	20.03.03	44	0.28	1.05	35	2	10.61
SBSF 18	09 49 46.99	-21 45 13.3	17.12.02	40	0.30	1.06	-	7	21.18
SBSF 24	10 40 26.20	-30 00 36.5	21.03.03	60	0.24	1.02	30	8	11.77
SBSF 27	12 55 37.48	-31 42 41.3	11.04.04	44	0.30	1.07	35	12	17.85
SBSF 28	12 56 14.14	-42 09 10.9	11.04.04	44	0.27	1.26	42	2	9.94
SBSF 34	13 46 25.24	-31 45 47.5	11.04.04	44	0.28	1.36	28	2	4.89
SBSF 36	22 14 36.74	-28 25 31.6	05.09.03	60	0.23	1.09	35	2	13.25
SBSF 37	22 43 04.43	-39 49 29.3	06.09.03	60	0.23	1.10	34	0	[12.70]
SBSF 38	22 47 06.77	-40 10 01.3	05.09.03	60	0.22	1.04	31	2	10.68
SBSF 39	22 49 34.23	-39 33 05.3	15.06.03	60	0.24	1.04	22	1	10.00
SBSF 40	22 49 49.32	-39 53 15.0	12.06.03	48	0.34	1.04	10	0	12.70
SBSF 41	22 50 21.28	-40 07 38.6	14.06.03	60	0.26	1.04	33	3	19.72
SBSF 42	23 29 55.77	-18 35 54.1	16.06.03	60	0.24	1.03	35	0	[12.70]

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