# BICEP2/Keck Array October 2018 Data Products
# BICEP2/Keck Array X: Constraints on Primordial Gravitational Waves using Planck, WMAP, and New BICEP2/Keck Observations through the 2015 Season
# http://bicepkeck.org/
#
# File: BK15_Nl_fsky_20181102.txt
# Date: 2018-11-02
#
# This file contains noise bandpowers for each ell bin, Nb,
# the standard deviation on these bandpowers, sigma(Nb), and effective
# fsky, which can be calculated from the first two quantities.
# Specifically, we calculate fsky as
#   1 / (2 * ell * Delta(ell)) * (sqrt(2) * Nb / sigma(Nb))^2,
# where ell is the nominal bin center and Delta(ell) is the
# nominal bin width. Nb and sigma(Nb) are in units of uK^2 and have
# not been scaled by ell * (ell+1) / (2*pi).
#
# Nb and fsky are plotted in Figure 3 of BK-X. For that figure, the
# x-axis position of the points is set to an ell value corresponding
# to the effective bin center, not the nominal bin center provided here.
# Those effective bin centers are calculated as the center of mass of
# the bandpower window functions (which can be found in the BK15 CosmoMC
# data release).
#
# Column 1: bin number
# Column 2: ell (nominal bin center)
# Column 3: Delta(ell) (nominal bin width)
# Columns 4-6:   Nb [uK^2], sigma(Nb) [uK^2], fsky for BK15 95 GHz
# Columns 7-9:   Nb [uK^2], sigma(Nb) [uK^2], fsky for BK15 150 GHz
# Columns 10-12: Nb [uK^2], sigma(Nb) [uK^2], fsky for BK15 220 GHz
#
1   37.5  35  1.63e-05  5.65e-06  0.0064  8.22e-06  2.85e-06  0.0063  6.12e-04  2.32e-04  0.0053
2   72.5  35  8.52e-06  1.69e-06  0.0100  2.66e-06  4.90e-07  0.0116  2.06e-04  3.72e-05  0.0121
3  107.5  35  8.70e-06  1.31e-06  0.0117  2.30e-06  3.23e-07  0.0135  1.67e-04  2.39e-05  0.0129
4  142.5  35  1.01e-05  1.22e-06  0.0139  2.32e-06  2.67e-07  0.0152  1.63e-04  1.85e-05  0.0157
5  177.5  35  1.31e-05  1.42e-06  0.0137  2.54e-06  2.75e-07  0.0137  1.69e-04  1.86e-05  0.0134
6  212.5  35  1.77e-05  1.72e-06  0.0142  2.95e-06  2.66e-07  0.0166  1.80e-04  1.83e-05  0.0130
7  247.5  35  2.57e-05  2.31e-06  0.0143  3.64e-06  3.17e-07  0.0153  2.03e-04  1.74e-05  0.0156
8  282.5  35  4.19e-05  3.25e-06  0.0169  4.72e-06  3.87e-07  0.0150  2.35e-04  1.87e-05  0.0160
9  317.5  35  7.40e-05  5.57e-06  0.0159  6.29e-06  5.00e-07  0.0142  2.77e-04  2.20e-05  0.0143