Twenty-four codes were added to the ASCL in July 2020:

CaTffs: Calcium triplet indexes

CosmoGRaPH: Cosmological General Relativity and (Perfect fluid | Particle) Hydrodynamics

DarkHistory: Modified cosmic ionization and thermal histories calculator

FleCSPH: Parallel and distributed SPH implementation based on the FleCSI

GProtation: Measuring stellar rotation periods with Gaussian processes

hierArc: Hierarchical analysis of strong gravitational lenses

JB2008: Empirical Thermospheric Density Model

Line-Stacker: Spectral lines stacking

MAGI: Initial-condition generator for galactic N-body simulations

MPSolve: Multiprecision Polynomial SOLVEr

OSPEX: Object Spectral Executive

PARS: Paint the Atmospheres of Rotating Stars

PeTar: ParticlE Tree & particle-particle & Algorithmic Regularization code for simulating massive star clusters

polyMV: Multipolar coefficients converter

PoPE: Population Profile Estimator

PSRVoid: Statistical suite for folded pulsar data

pygwinc: Gravitational Wave Interferometer Noise Calculator

ReadPDS: Visualization tools for PDS4 data

SPARTA: SPectroscopic vARiabiliTy Analysis

SPARTA: Subhalo and PARticle Trajectory Analysis

spex_to_xspec: Convert SPEX output to XSPEC input

SPEX: Spectral Executive

TROVE: Theoretical ROVibrational Energies

wdtools: Spectroscopic analysis of white dwarfs