Photometry#

class lsst.pipe.tasks.functors.Photometry(colFlux, colFluxErr=None, **kwargs)#

Bases: Functor

Base class for Object table calibrated fluxes and magnitudes.

Attributes Summary

`AB_FLUX_SCALE`
`COADD_ZP`
`FIVE_OVER_2LOG10`
`LOG_AB_FLUX_SCALE`
`columns`	Columns required to perform calculation.
`name`	Full name of functor (suitable for figure labels).

Methods Summary

`dn2MagErr`(dn, dnErr, fluxMag0, fluxMag0Err)	Convert instrumental flux error to AB magnitude error.
`dn2flux`(dn, fluxMag0)	Convert instrumental flux to nanojanskys.
`dn2fluxErr`(dn, dnErr, fluxMag0, fluxMag0Err)	Convert instrumental flux error to nanojanskys.
`dn2mag`(dn, fluxMag0)	Convert instrumental flux to AB magnitude.
`hypot`(a, b)	Compute sqrt(a^2 + b^2) without under/overflow.

Attributes Documentation

AB_FLUX_SCALE = 3630780547701.0029#

COADD_ZP = 27#

FIVE_OVER_2LOG10 = 1.0857362047581296#

LOG_AB_FLUX_SCALE = 12.56#

columns#

name#

Methods Documentation

dn2MagErr(dn, dnErr, fluxMag0, fluxMag0Err)#: Convert instrumental flux error to AB magnitude error.

dn2flux(dn, fluxMag0)#: Convert instrumental flux to nanojanskys.

dn2fluxErr(dn, dnErr, fluxMag0, fluxMag0Err)#: Convert instrumental flux error to nanojanskys.

dn2mag(dn, fluxMag0)#: Convert instrumental flux to AB magnitude.

classmethod hypot(a, b)#: Compute sqrt(a^2 + b^2) without under/overflow.