*** This folder contains the following files for EHT epoch: 2021***
exptL0.txt --- Track ID numbers.
track2expt.txt --- Dictionary of ID numbers and letter-codes for Track IDs.
expt2track.txt --- Dictionary of letter-codes and ID numbers for Track IDs.
AZ2Z.txt --- Dictionary of VEX 2-char to HOPS 1-char code for antennas.
Z2AZ.txt --- Dictionary of HOPS 1-char to VEX 2-char antenna code.
nam2lett.txt --- Dictionary of antenna site name to HOPS 1-char antenna code.
station_dic.txt --- Dictionary of antenna site to VEX 2-char antenna code, and of HOPS 1-char to VEX 2-char antenna code.
ant_locat.txt --- Dictionary of HOPS 1-char antenna code with geocentric coordinates.
antL.txt --- List of HOPS 1-char antenna codes.
sourL.txt --- List of source names observed in this epoch.
ras_dict.txt --- Dictionary of Source and RA coordinates in hours (for HOPS).
dec_dict.txt --- Dictionary of Source and DEC coordinates in degrees (for HOPS).
lat_dict.txt --- Dictionary of Antenna latitude location (for HOPS).
lon_dict.txt --- Dictionary of Antenna longitude location (for HOPS).
vexflag_info.tab -- Table with combined information from .vex and .flag files.
vtf_raw.tab --- Table with raw Tsys* values for single dishes, and raw SEFDs for phased arrays (except Aa for its format is not standard) provided by tel reps. Scans with flag_code=N are omitted. Only invalid source names are corrected if needed.
opt_thick_scans.tab --- Table listing scans where the opacity is higher than 1 (Aa excluded).
tsa.csv --- Track, source, antenna dictionary.
DPFU_mean.txt --- List of mean DPFU (K/Jy) values and their percent uncertainties - through tracks, bands and polarisations
DPFU_mean_a14.txt --- List of mean DPFU (K/Jy) values and their uncertainties for track e21a14 - through bands and polarisations
phasar_char.txt --- Mean characteristics of the phased-arrays participating in the 2021 campaign.
SEFD_median.txt --- List of median SEFD (Jy) values for primary targets, through bands and polarisations --after data flagging and replacing missing values when possible (except Aa)--. Values from APEX in track e21b09 (observed in linear polarisation) are excluded.
SEFD_median_a14.txt --- List of median SEFD (Jy) values  for primary targets, through bands and polarisations in track e21a14 --after data flagging and replacing missing values when possible (except Aa)--.
Tsys_median.txt --- List of median Tsys* (K) values for primary targets, through bands and polarisations --after data flagging and replacing missing values when possible (except Aa)--. APEX values from track e21b09 (observed in linear polarisation) are excluded.
Tsys_median_a14.txt --- List of median Tsys* (K) values for primary targets, through bands and polarisations in track e21a14 --after data flagging and replacing missing values when possible (except Aa)--.
tau_info.txt --- Opacities over the whole campaign.
tsys_proc.tab --- Table with processed Tsys* values: original + modelled ones; scaled up when Wobbler was enabled in APEX. Note APEX values in e21b09 correspond to Y and X instead of RCP and LCP. The values for SMA are SEFDs. Aa is not included for its format is not standard.
sefd_proc.tab --- Table with processed SEFD values (based on the values from tsys_proc.tab). Aa not included.
deleted_df.tab --- Table listing raw data that were completely deleted. If data from SMA is included, Tsys* values correspond to SEFDs.
modify_df.tab --- Table listing raw data that were modified to create processed tables.
