Detector

Field of view

Average detector properties

NIRCam (Link)

Average NIRCam detector properties

Parameter	Short wavelength channel (0.6-2.3 μm)	Long wavelength channel (2.4-5.0 μm)
CDS readnoise (correlated double sampling)	15.77 ± 0.94e-	13.25 ± 0.08e-
Dark current in 1,000s	1.9 &plusmn: 1.1e-/ks	34.2 ± 5e-/ks
Effective noise in 1,000s (93 groups of full-frame RAPID)	7.79 ± 0.68e-	9.28 ± 0.12e-
Gain(e-/ADU)	2.05 ± 0.4	1.82 ± 0.4
Well capacity (saturation level with superbias subtracted)	105,750 ± 2.264e-	83,300 ± 1,200e-
Quantum efficiency (QE)	70%@0.6μm 80%@1.0μm 90%@2.0μm	80%@3μm 90%@4μm 60%@5μm
Interpixel capacitance (IPC)	0.53% ± 0.04%	0.59% ± 0.04%
Post-pixel coupling (PPC)	0.08% ± 0.02%	0.19% ± 0.03%
Persistence (for same exposure time as previous nearly saturated image)	<0.01%	<0.01%

Individual NIRCam detector properties

Detector	CDS read noise (e–)	Dark current (e–/ks)	Effective noise in 1,000 s (e–)	Gain (e–/ADU)	Saturation raw (ADU)
A1	15.99 ± 1.38	0.3 ± 1.6	6.86 ± 1.79	2.08	60,300 ± 1,760
A2	17.18 ± 1.51	2.7 ± 1.9	8.61 ± 2.12	2.02	63,100 ± 600
A3	14.80 ± 1.29	2.8 ± 1.6	8.40 ± 2.59	2.17	59,300 ± 220
A4	15.06 ± 1.30	3.3 ± 1.8	7.36 ± 1.92	2.02	62,000 ± 1,330
B1	16.76 ± 1.46	2.2 ± 1.5	6.83 ± 1.77	2.01	62,300 ± 440
B2	15.84 ± 1.37	0.8 ± 1.5	7.73 ± 2.14	2.14	61,000 ± 360
B3	16.30 ± 1.42	1.7 ± 1.4	7.98 ± 2.27	1.94	62,500 ± 860
B4	14.23 ± 1.24	1.1 ± 1.8	8.57 ± 2.99	2.03	61,000 ± 520
A5	13.17 ± 1.14	33.5 ± 3.1	9.16 ± 2.57	1.84	59,200 ± 960
B5	13.33 ± 1.18	35.0 ± 2.5	9.39 ± 2.20	1.80	58,500 ± 470

MIRI (Link)

Parameter	Value
Pixel gain (e–/ADU)	~4
Dark current (e–/s)	~0.2
Read noise (DN)	~6
Latent images (%)	< 1
Full well (e–)	~210,000