filter B, bin 1, night 201002, compared to night 201001, sigma = 0.0015
filter C, bin 1, night 201002, compared to night 201001, sigma = 0.0016
filter I, bin 1, night 201002, compared to night 201001, sigma = 0.0015
filter R, bin 1, night 201002, compared to night 201001, sigma = 0.0015
filter V, bin 1, night 201002, compared to night 201001, sigma = 0.0015