Original version, 2016-12-09
This file describes the content of the Planck HFI planet brightness
data. These measurements are described in a paper that is available
here: https://arxiv.org/abs/1612.07151
For any questions, please contact the corresponding author, Jon
E. Gudmundsson. jon.gudmundsson@fysik.su.se / jegudmunds@gmail.com
The interpretation of these data should become apparent from reading
the paper. However, this document aims to provide accurate
descriptions of each of the parameters that we provide.
The results are contained within 21 data files, one file for each
planet observation made by Planck HFI. Each file contains 13 data
columns. These data should allow the reader to reconstruct the
Planck-HFI estimates of planet spectral radiance as well as associated
uncertainties, both statistical and systematic.
The columns are:
Channel : The Planck-HFI detector name.
obs tims : The observation time [MJD] corresponding to the time when
this detector is centred on the planet.
RA : Astrometric right ascension (ICRF/J2000) ephmeris
corresponding to the location of the planet at the time of
observation. Observer location is set to: Planck Space Observatory [500@-489]
DEC : Astrometric declination (ICRF/J2000) ephmeris corresponding
to the location of the planet at the time of observation. Observer location is set to: Planck Space Observatory [500@-489]
pda : Solid angle [arcsec^2] of the planet used in the brightness
analysis. This corresponds to $\Omega _\mathrm{p}$ in the paper (see
discussion in Section 2.1).
dpda : Assumed error in planet solid angle [arcsec^2].
T : Planet thermodynamic temperature [K] (see definition in paper)
at the band reference frequency corresponding to 100, 143, 217, 353,
545, or 857 GHz (see discussion in Section 2.1).
dT1 : Statistical uncertainty in the determination of the
thermodynamic temperature [K].
dT2 : Systematic uncertainty in the determination of the
thermodynamic temperature [K].
flux : Flux density [Jy] estimate at the reference frequency found
by calculating the product of the planet solid angle and the Planck
blackbody formula with the planet thermodynamic temperature and
reference frequency as inputs.
dflux1 : Statistical uncertainty in flux density [Jy].
dflux2 : Systematic uncertainty in flux density [Jy].
beam : Scanning beam solid angle [arcmin^2] used for this
channel. This corresponds to $\Omega _\mathrm{b}$ in the paper (see
discussion in Section 2.1).
kappa1 : Colour correction coefficient appropriate for this detector
and planet. This corresponds to $\kappa _1$ in the paper (see
definition in Section 2.1).
kappa2 : Colour correction coefficient appropriate for this detector
and planet. This corresponds to $\kappa _2$ in the paper (see
definition in Section 2.1).