DES SN 5YR Tutorial Part 3: Load LCPlot file

d5473033f8e9460d9ecebe655a59dc48 Dark Energy Survey Supernova Program

Tutorial Part 3 Load LC Plot files Contact author: Bruno Sánchez

Import our utils module to load the LCPLOT files in the Release

[1]:

import warnings
warnings.filterwarnings("ignore")

[2]:

import os

[3]:

from dessndr import utils, data

[4]:

lcplot_data = utils.read_lcplot(
    os.path.join(
        data.DES5YRDR_DATA_ROOT,
        'DES-SN5YR/0_DATA/DES5YR_SALT3_LCFIT.LCPLOT.gz'
    )
)

Inspect around. These files contain the lightcurves twice. Once for the DATA and once for the MODEL fitted fluxes.

[5]:

lcplot_data.iloc[0]

[5]:

SNID           1562098
MJD           57701.07
PHASE           -19.64
FLUXCAL          12.53
FLUXCALERR      8.9893
DATA_MODEL           1
BAND                 r
CHI2               1.3
IGNOREME             1
Name: 0, dtype: object

[6]:

len(lcplot_data.SNID.unique())

[6]:

1635

[7]:

lcplot_data.SNID.unique()[:10]

[7]:

array([1562098, 1702083, 1435094, 1309227, 1324542, 1320474, 1290816,
       1298246, 1311632, 1302738])

[8]:

lcplot_data.head()

[8]:
SNID MJD PHASE FLUXCAL FLUXCALERR DATA_MODEL BAND CHI2 IGNOREME
0 1562098 57701.070 -19.64 12.530 8.9893 1 r 1.30 1
1 1562098 57708.094 -12.62 102.850 41.4340 1 r 1.32 1
2 1562098 57709.035 -11.68 67.120 5.4472 1 r 1.21 1
3 1562098 57714.188 -6.53 74.187 4.4849 1 r 1.33 1
4 1562098 57718.070 -2.64 80.931 5.5057 1 r 0.26 1

Use the loaded data to look at light-curves with the SALT3 fitted models!

[9]:

from dessndr import plot

[10]:

ax = plot.plot_lcplot(lcplot_data, cid=1562098)
../_images/tutorial_02-load_lcplot_14_0.png 
[11]:

ax = plot.plot_lcplot(lcplot_data, cid=1702083)
../_images/tutorial_02-load_lcplot_15_0.png 
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