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- CHARACTERIZATION OF THE SHARDS FILTER SET AND DATA QUALITY -

In this page you will find practical information about SHARDS observations: filters, trasmission curves, calibration plots, data quality, ...

NOTES for second column (the one with filter names):
    green background: filters observed and data reduced
    khaki background: filters (partially) observed, data to be (or partially) reduced
    red background: filters not observed yet

NOTES for first row (measured parameters and observational info):
orange background: data from observations
yellow background: data from calibrations

Table of SHARDS filters and data quality (version 2015, Feb 25)

N Filter CWL Width A B X0 Y0 RMS ZP Δ(ZP) m_3σ m_75% seeing Exposure time (sec) Transmission curve (txt) Transmission curve plot (ps) Calibration curve plot (ps)

P1 P2 P1 P2 P1 P2 P1 P2 P1 P2 P1 P2

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17)

Note 1 - (1) Filter name. (2) Central wavelength (in nm) of the filter corresponding to the nominal CWL. (3) Filter width (in nm). (4) Coefficient A (in nm) for CWL calibration (from equation 1 of Perez-Gonzalez et al. 2013, ApJ, 762, 46). (5) Coefficient B (in pixel^-2) for CWL calibration (from equation 1 of Perez-Gonzalez et al. 2013, ApJ, 762, 46). (6) X coordinate for the OSIRIS optical center (in pixels). (7) Y coordinate for the OSIRIS optical center (in pixels). (8) RMS of the CWL calibration (in nm). (9) Zeropoint for pointings 1 and 2. (10) Zeropoint uncertainty for pointings 1 and 2. (11) Sensitivity limit at 3-sigma level (AB mag) for pointings 1 and 2. (12) Third quartil of the magnitude distribution (AB mag) for pointings 1 and 2. (13) Average seeing (in arcsec) for pointings 1 and 2. (14) Exposure time in seconds for pointings 1 and 2. (15)-(17) These files refer to the observed transmission curve extracted from the pinhole (in the 100 pihole mask used for calibration) whose CWL is the nearest to the nominal CWL of the filter.

Note 2 - The coefficients have changed with respect to those tabulated in Table 1 in Perez-Gonzalez et al. 2013, ApJ, 762, 46, however the CWL solutions are compatible and the ZEROPT have been updated accordingly to a new version of the catalogs (v1.14.5).

1 F500W17 500.0 15.0 503.37 -1.323E-6 -315.7 1003.7 0.1 32.515 33.235 0.106 0.106 26.9 26.6 27.3 27.2 0.96 0.94 6300 3780 f500w17_transCurve f500w17_transPlot f500w17_calCurve

2 F517W17 517.0 16.5 520.31 -1.304E-6 -430.5 991.6 0.1 32.572 32.587 0.085 0.085 26.3 27.0 27.1 27.3 0.79 0.93 5013 9469 f517w17_transCurve f517w17_transPlot f517w17_calCurve

3 F534W17 534.0 17.7 538.51 -1.379E-6 -370.3 1053.0 0.1 33.169 33.306 0.088 0.088 27.0 27.2 27.2 27.2 0.92 0.81 4800 4800 f534w17_transCurve f534w17_transPlot f534w17_calCurve

4 F551W17 551.0 13.8 555.01 -2.060E-6 -255.8 988.1 0.2 32.994 32.899 0.074 0.074 26.6 26.6 27.1 27.0 0.83 0.78 5190 5190 f551w17_transCurve f551w17_transPlot f551w17_calCurve

5 F568W17 568.0 14.4 572.11 -2.117E-6 -289.8 1008.8 0.2 33.361 33.339 0.081 0.081 26.6 26.7 27.0 27.1 0.83 0.82 5814 5814 f568w17_transCurve f568w17_transPlot f568w17_calCurve

6 F585W17 585.0 15.1 588.69 -2.327E-6 -123.2 1024.7 0.1 33.525 33.452 0.084 0.084 26.7 26.8 27.1 27.1 0.97 0.89 6126 6126 f585w17_transCurve f585w17_transPlot f585w17_calCurve

7 F602W17 602.0 15.5 605.75 -2.277E-6 -212.5 1001.2 0.2 33.424 33.443 0.063 0.063 26.6 27.0 27.0 27.1 0.88 0.89 7200 7200 f602w17_transCurve f602w17_transPlot f602w17_calCurve

8 F619W17 619.0 15.8 623.14 -2.404E-6 -202.3 984.8 0.1 33.534 33.429 0.055 0.055 26.9 27.1 27.0 27.1 0.85 0.90 7920 7920 f619w17_transCurve f619w17_transPlot f619w17_calCurve

9 F636W17 636.0 16.2 641.37 -2.589E-6 -116.3 985.8 0.1 33.762 33.683 0.050 0.050 26.9 26.9 27.0 27.0 0.79 0.92 9180 9180 f636w17_transCurve f636w17_transPlot f636w17_calCurve

10 F653W17 653.0 15.4 656.01 -2.636E-6 -151.1 998.6 0.1 33.875 33.856 0.054 0.054 27.1 27.3 27.1 27.1 0.98 1.00 10440 13920 f653w17_transCurve f653w17_transPlot f653w17_calCurve

11 F670W17 670.0 16.0 671.86 -2.602E-6 -183.3 1037.2 0.1 33.565 33.511 0.049 0.049 26.7 27.0 27.0 27.1 0.79 1.07 3795 4554 f670w17_transCurve f670w17_transPlot f670w17_calCurve

12 F687W17 687.0 17.2 691.22 -2.366E-6 -383.2 946.8 0.1 33.982 33.785 0.056 0.056 27.2 27.0 27.0 27.0 0.84 0.93 9270 12360 f687w17_transCurve f687w17_transPlot f687w17_calCurve

13 F704W17 704.0 17.9 707.78 -2.725E-6 -209.3 1027.9 0.1 33.661 33.708 0.049 0.049 26.9 26.8 26.9 26.9 0.89 0.92 6120 6120 f704w17_transCurve f704w17_transPlot f704w17_calCurve

14 F721W17 721.0 18.5 723.12 -2.972E-6 -94.5 960.0 0.2 33.778 33.067 0.051 0.051 26.7 26.7 26.9 26.9 0.93 1.02 9075 6620 f721w17_transCurve f721w17_transPlot f721w17_calCurve

15 F738W17 738.0 14.9 741.80 -2.413E-6 -328.0 1050.3 0.1 33.642 33.563 0.060 0.060 26.5 26.5 26.8 26.8 0.86 0.90 10620 7965 f738w17_transCurve f738w17_transPlot f738w17_calCurve

16 F755W17 755.0 15.3 758.12 -2.662E-6 -228.4 1033.5 0.1 33.882 33.815 0.061 0.061 26.9 26.5 26.9 26.8 0.92 0.93 12000 9000 f755w17_transCurve f755w17_transPlot f755w17_calCurve

17 F772W17 772.0 15.9 774.62 -2.931E-6 -122.0 1026.0 0.2 33.866 33.791 0.057 0.057 26.7 26.6 26.9 26.9 0.94 1.04 14300 12100 f772w17_transCurve f772w17_transPlot f772w17_calCurve

18 F789W17 789.0 16.0 791.22 -3.089E-6 -123.4 994.3 0.1 33.545 33.507 0.064 0.064 26.3 26.2 26.8 26.7 0.97 0.92 8160 11562 f789w17_transCurve f789w17_transPlot f789w17_calCurve

19 F806W17 806.0 16.1 809.42 -2.941E-6 -200.1 932.8 0.1 33.333 33.316 0.054 0.054 26.6 26.6 26.8 26.8 0.96 0.99 14900 14900 f806w17_transCurve f806w17_transPlot f806w17_calCurve

20 F823W17 823.0 14.7 829.15 -3.058E-6 -152.7 888.0 0.1 33.238 33.179 0.049 0.049 26.7 26.9 26.7 26.7 0.82 0.91 18570 24760 f823w17_transCurve f823w17_transPlot f823w17_calCurve

21 F840W17 840.0 15.6 843.57 -3.104E-6 -236.7 992.2 0.1 32.989 32.992 0.046 0.046 26.4 26.5 26.7 26.6 0.88 0.91 24816 25872 f840w17_transCurve f840w17_transPlot f840w17_calCurve

22 F857W17 857.0 15.9 859.97 -2.895E-6 -249.3 1002.1 0.2 33.856 33.708 0.057 0.057 27.0 26.5 26.7 26.7 0.73 0.95 40400 25250 f857w17_transCurve f857w17_transPlot f857w17_calCurve

23 F883W35 883.0 33.6 885.33 -2.892E-6 -285.2 977.5 0.4 33.866 33.774 0.053 0.053 26.4 26.4 26.7 26.6 0.93 1.02 16480 16480 f883w35_transCurve f883w35_transPlot f883w35_calCurve

24 F913W25 913.0 27.8 913.64 -4.055E-6 -60.4 975.4 0.2 f913w25_transCurve f913w25_transPlot f913w25_calCurve

25 F941W33 941.0 33.3 944.04 -3.406E-6 -165.0 1067.1 0.3 33.212 33.195 0.062 0.062 25.9 26.0 26.3 26.2 0.91 0.99 35711 30914 f941w33_transCurve f941w33_transPlot f941w33_calCurve

**Table of SHARDS filters and data quality (version 2015, Feb 25)**

N	Filter	CWL	Width	A	B	X0	Y0	RMS	ZP	Δ(ZP)	m_3σ	m_75%	seeing	Exposure time (sec)	Transmission curve (txt)	Transmission curve plot (ps)	Calibration curve plot (ps)
	P1	P2	P1	P2	P1	P2	P1	P2	P1	P2	P1	P2
	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)	(11)	(12)	(13)	(14)	(15)	(16)	(17)

Note 1 - (1) Filter name. (2) Central wavelength (in nm) of the filter corresponding to the nominal CWL. (3) Filter width (in nm). (4) Coefficient A (in nm) for CWL calibration (from equation 1 of Perez-Gonzalez et al. 2013, ApJ, 762, 46). (5) Coefficient B (in pixel^-2) for CWL calibration (from equation 1 of Perez-Gonzalez et al. 2013, ApJ, 762, 46). (6) X coordinate for the OSIRIS optical center (in pixels). (7) Y coordinate for the OSIRIS optical center (in pixels). (8) RMS of the CWL calibration (in nm). (9) Zeropoint for pointings 1 and 2. (10) Zeropoint uncertainty for pointings 1 and 2. (11) Sensitivity limit at 3-sigma level (AB mag) for pointings 1 and 2. (12) Third quartil of the magnitude distribution (AB mag) for pointings 1 and 2. (13) Average seeing (in arcsec) for pointings 1 and 2. (14) Exposure time in seconds for pointings 1 and 2. (15)-(17) These files refer to the observed transmission curve extracted from the pinhole (in the 100 pihole mask used for calibration) whose CWL is the nearest to the nominal CWL of the filter.
Note 2 - The coefficients have changed with respect to those tabulated in Table 1 in Perez-Gonzalez et al. 2013, ApJ, 762, 46, however the CWL solutions are compatible and the ZEROPT have been updated accordingly to a new version of the catalogs (v1.14.5).
1	F500W17	500.0	15.0	503.37	-1.323E-6	-315.7	1003.7	0.1	32.515	33.235	0.106	0.106	26.9	26.6	27.3	27.2	0.96	0.94	6300	3780	f500w17_transCurve	f500w17_transPlot	f500w17_calCurve
2	F517W17	517.0	16.5	520.31	-1.304E-6	-430.5	991.6	0.1	32.572	32.587	0.085	0.085	26.3	27.0	27.1	27.3	0.79	0.93	5013	9469	f517w17_transCurve	f517w17_transPlot	f517w17_calCurve
3	F534W17	534.0	17.7	538.51	-1.379E-6	-370.3	1053.0	0.1	33.169	33.306	0.088	0.088	27.0	27.2	27.2	27.2	0.92	0.81	4800	4800	f534w17_transCurve	f534w17_transPlot	f534w17_calCurve
4	F551W17	551.0	13.8	555.01	-2.060E-6	-255.8	988.1	0.2	32.994	32.899	0.074	0.074	26.6	26.6	27.1	27.0	0.83	0.78	5190	5190	f551w17_transCurve	f551w17_transPlot	f551w17_calCurve
5	F568W17	568.0	14.4	572.11	-2.117E-6	-289.8	1008.8	0.2	33.361	33.339	0.081	0.081	26.6	26.7	27.0	27.1	0.83	0.82	5814	5814	f568w17_transCurve	f568w17_transPlot	f568w17_calCurve
6	F585W17	585.0	15.1	588.69	-2.327E-6	-123.2	1024.7	0.1	33.525	33.452	0.084	0.084	26.7	26.8	27.1	27.1	0.97	0.89	6126	6126	f585w17_transCurve	f585w17_transPlot	f585w17_calCurve
7	F602W17	602.0	15.5	605.75	-2.277E-6	-212.5	1001.2	0.2	33.424	33.443	0.063	0.063	26.6	27.0	27.0	27.1	0.88	0.89	7200	7200	f602w17_transCurve	f602w17_transPlot	f602w17_calCurve
8	F619W17	619.0	15.8	623.14	-2.404E-6	-202.3	984.8	0.1	33.534	33.429	0.055	0.055	26.9	27.1	27.0	27.1	0.85	0.90	7920	7920	f619w17_transCurve	f619w17_transPlot	f619w17_calCurve
9	F636W17	636.0	16.2	641.37	-2.589E-6	-116.3	985.8	0.1	33.762	33.683	0.050	0.050	26.9	26.9	27.0	27.0	0.79	0.92	9180	9180	f636w17_transCurve	f636w17_transPlot	f636w17_calCurve
10	F653W17	653.0	15.4	656.01	-2.636E-6	-151.1	998.6	0.1	33.875	33.856	0.054	0.054	27.1	27.3	27.1	27.1	0.98	1.00	10440	13920	f653w17_transCurve	f653w17_transPlot	f653w17_calCurve
11	F670W17	670.0	16.0	671.86	-2.602E-6	-183.3	1037.2	0.1	33.565	33.511	0.049	0.049	26.7	27.0	27.0	27.1	0.79	1.07	3795	4554	f670w17_transCurve	f670w17_transPlot	f670w17_calCurve
12	F687W17	687.0	17.2	691.22	-2.366E-6	-383.2	946.8	0.1	33.982	33.785	0.056	0.056	27.2	27.0	27.0	27.0	0.84	0.93	9270	12360	f687w17_transCurve	f687w17_transPlot	f687w17_calCurve
13	F704W17	704.0	17.9	707.78	-2.725E-6	-209.3	1027.9	0.1	33.661	33.708	0.049	0.049	26.9	26.8	26.9	26.9	0.89	0.92	6120	6120	f704w17_transCurve	f704w17_transPlot	f704w17_calCurve
14	F721W17	721.0	18.5	723.12	-2.972E-6	-94.5	960.0	0.2	33.778	33.067	0.051	0.051	26.7	26.7	26.9	26.9	0.93	1.02	9075	6620	f721w17_transCurve	f721w17_transPlot	f721w17_calCurve
15	F738W17	738.0	14.9	741.80	-2.413E-6	-328.0	1050.3	0.1	33.642	33.563	0.060	0.060	26.5	26.5	26.8	26.8	0.86	0.90	10620	7965	f738w17_transCurve	f738w17_transPlot	f738w17_calCurve
16	F755W17	755.0	15.3	758.12	-2.662E-6	-228.4	1033.5	0.1	33.882	33.815	0.061	0.061	26.9	26.5	26.9	26.8	0.92	0.93	12000	9000	f755w17_transCurve	f755w17_transPlot	f755w17_calCurve
17	F772W17	772.0	15.9	774.62	-2.931E-6	-122.0	1026.0	0.2	33.866	33.791	0.057	0.057	26.7	26.6	26.9	26.9	0.94	1.04	14300	12100	f772w17_transCurve	f772w17_transPlot	f772w17_calCurve
18	F789W17	789.0	16.0	791.22	-3.089E-6	-123.4	994.3	0.1	33.545	33.507	0.064	0.064	26.3	26.2	26.8	26.7	0.97	0.92	8160	11562	f789w17_transCurve	f789w17_transPlot	f789w17_calCurve
19	F806W17	806.0	16.1	809.42	-2.941E-6	-200.1	932.8	0.1	33.333	33.316	0.054	0.054	26.6	26.6	26.8	26.8	0.96	0.99	14900	14900	f806w17_transCurve	f806w17_transPlot	f806w17_calCurve
20	F823W17	823.0	14.7	829.15	-3.058E-6	-152.7	888.0	0.1	33.238	33.179	0.049	0.049	26.7	26.9	26.7	26.7	0.82	0.91	18570	24760	f823w17_transCurve	f823w17_transPlot	f823w17_calCurve
21	F840W17	840.0	15.6	843.57	-3.104E-6	-236.7	992.2	0.1	32.989	32.992	0.046	0.046	26.4	26.5	26.7	26.6	0.88	0.91	24816	25872	f840w17_transCurve	f840w17_transPlot	f840w17_calCurve
22	F857W17	857.0	15.9	859.97	-2.895E-6	-249.3	1002.1	0.2	33.856	33.708	0.057	0.057	27.0	26.5	26.7	26.7	0.73	0.95	40400	25250	f857w17_transCurve	f857w17_transPlot	f857w17_calCurve
23	F883W35	883.0	33.6	885.33	-2.892E-6	-285.2	977.5	0.4	33.866	33.774	0.053	0.053	26.4	26.4	26.7	26.6	0.93	1.02	16480	16480	f883w35_transCurve	f883w35_transPlot	f883w35_calCurve
24	F913W25	913.0	27.8	913.64	-4.055E-6	-60.4	975.4	0.2													f913w25_transCurve	f913w25_transPlot	f913w25_calCurve
25	F941W33	941.0	33.3	944.04	-3.406E-6	-165.0	1067.1	0.3	33.212	33.195	0.062	0.062	25.9	26.0	26.3	26.2	0.91	0.99	35711	30914	f941w33_transCurve	f941w33_transPlot	f941w33_calCurve

Download the table in text format: SHARDS filters table

Download the tarball with all the transmission curves (text format): SHARDS transmission curves

Download the tarball with all the transmission plots (PostScript): SHARDS transmission plots

Download the tarball with all the CWL calibration plots (PostScript): SHARDS CWL calibration

TRANSMISSION CURVES FOR SHARDS FILTER SET (INDIVIDUALLY NORMALIZED)

TRANSMISSION CURVES FOR SHARDS FILTER SET (NORMALIZED TO OSIRIS CCD QUANTUM EFFICIENCY)

Printable version of the above plots (white background):
TRANSMISSION CURVES FOR SHARDS FILTER SET (INDIVIDUALLY NORMALIZED): png PostScript
TRANSMISSION CURVES FOR SHARDS FILTER SET (NORMALIZED TO OSIRIS CCD QUANTUM EFFICIENCY): png PostScript

Created: Nov 23, 2012 - A. Cava and P.G. Pérez-González
Last edit: Feb 25, 2015 - Helena Domínguez-Sánchez, Carmen Eliche Moral, Pilar Esquej, Pablo G. Pérez-González