Table 1.

Fitted noise parameters for frequencies f < 5 kHz

	a1 (with a 95% confidence bound)	β (with a 95% confidence bound)
Level 0 noise	4.14 × 10–5 (1.30 × 10–5, 6.98 × 10–5)	0.202 (0.110, 0.294)
Level 1 noise	3.70 × 10–3 (1.90 × 10–3, 9.30 × 10–3)	0.380 (0.170, 0.591)
Level 2 noise	3.15 × 10–3 (9.33 × 10–4, 7.24 × 10–3)	0.473 (0.289, 0.656)