TABLE 2.

Average Near-Infrared and Mid-Infrared Colors of L dwarfs

SpT (1)	${\mathrm{N}}_{\mathit{WIS}{E}^{\mathrm{a}}}$ (2)	${\mathrm{N}}_{2\mathit{MAS}{S}^{\mathrm{a}}}$ (3)	NLow–G (4)	${({\text{J-K}}_s)}_{\mathit{avg}}$ (5)	σ(J-Ks) (6)	(W1-W2)avg (7)	σ(W1-W2) (8)
L0	143	102	11	1.30	0.15	0.27	0.06
L1	125	95	2	1.35	0.16	0.26	0.06
L2	58	60	3	1.48	0.17	0.28	0.07
L3	69	51	3	1.64	0.18	0.31	0.06
L4	37	33	5	1.69	0.24	0.34	0.08
L5	43	28	2	1.72	0.22	0.35	0.08
L6	25	13	0	1.84	0.25	0.42	0.11
L7	13	9	0	1.75	0.26	0.46	0.09
L8–9	19	10	0	1.85	0.17	0.54	0.08

^aOnly normal (non-low surface gravity, subdwarf, or young) L dwarfs with photometric uncertainty < 0.1 were used in calculating the average.