bp = Bandpass(wavelen_max=1200)
components = common_components + [os.path.join(tp_dir, "baseline", "filter_%s.dat" % (bpname)),
os.path.join(tp_dir, "atmos", "atmos_%d.dat" % (airmass))]
#print components
bp.readThroughputList(components)
bp.sbTophi()
wavelen = sed.wavelen
fnu = sed.fnu
wavelen, fnu = sed.resampleSED(wavelen, fnu, wavelen_match=bp.wavelen)
wavelenf, flambda = sed.fnuToflambda(wavelen, fnu)
waveleng = gStar.wavelen
fnug = gStar.fnu
waveleng, fnug = gStar.resampleSED(waveleng, fnug, wavelen_match=bp.wavelen)
wavelenfg, flambdag = gStar.fnuToflambda(waveleng, fnug)
flux = fnu * bp.phi
fluxg = fnug * bp.phi
leff1 = np.exp(np.sum(fnu * bp.phi * np.log(wavelen)) / np.sum(fnu * bp.phi))
leff2 = np.exp(np.sum(flambda * bp.phi * np.log(wavelenf)) / np.sum(flambda * bp.phi))
leff1g = np.exp(np.sum(fnug * bp.phi * np.log(waveleng)) / np.sum(fnug * bp.phi))
leff2g = np.exp(np.sum(flambdag * bp.phi * np.log(wavelenfg)) / np.sum(flambdag * bp.phi))
off1 = refract(leff1*10**-3, zd * np.pi / 180.) * 180. / np.pi * 3600.
off2 = refract(leff2*10**-3, zd * np.pi / 180.) * 180. / np.pi * 3600.
off = refract(wavelen*10**-3, zd * np.pi / 180.) * 180. / np.pi * 3600.
off = np.sum(off * flux) / np.sum(flux)
