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SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES)
Final Catalog
Version 20230206 Zhen-Kai Gao
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Description of the columns
==========================

Column 1 -- ID
-- Unit: N/A
-- Description: The name of the source.

Column 2 -- nID
-- Unit: N/A
-- Description: The numerical ID of the source.

Column 3 -- RA
-- Unit: degree
-- Description: Right ascension (J2000)

Column 4 -- Dec
-- Unit: degree
-- Description: Declination (J2000) 

Column 5 -- x
-- Unit: N/A
-- Description: The zero-based index of the source position on the x-axis of the image.

Column 6 -- y
-- Unit: N/A
-- Description: The zero-based index of the source position on the y-axis of the image.

Column 7 -- SNR
-- Unit: N/A
-- Description: The signal-to-noise ratio of the source.

Column 8 -- S450_raw or S850_raw
-- Unit: mJy
-- Description: The raw flux density of the source.

Column 9 -- S450_raw_err or S850_raw_err
-- Unit: mJy
-- Description: 
---- S450_raw_err: The instrumental noise at the source position.
---- S850_raw_err: The combined noise of instrumental noise and confusion noise.

Column 10 -- S450 or S850
-- Unit: mJy
-- Description: The deboosted flux density of the source.

Column 11 -- S450_total_err or S850_total_err
-- Unit: mJy
-- Description: The total noise consisting of instrumental noise,
                flux-deboosting uncertainty, and confusion noise.

Column 12 -- Comp
-- Unit: N/A
-- Description: The completeness of the source estimated by the Monte Carlo simulations.

Column 13 -- Spur
-- Unit: N/A
-- Description: The spurious probability of the source estimated by the Monte Carlo simulations.

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How to read this catalog in Python?
===================================

1. CSV format

*****************(1)******************
import pandas as pd
df = pd.read_csv('your_file_name.csv')
*****************(2)******************
import numpy as np
dat = np.genfromtxt('your_file_name.csv', skip_header=1, delimiter=',')
*****************(3)******************
from astropy.table import Table
tb = Table.read('your_file_name.csv')
**************************************

2. FITS format

**************************************
from astropy.table import Table
tb = Table.read('your_file_name.fits')
**************************************

Contacts: 
Wei-Hao Wang: whwang@asiaa.sinica.edu.tw