Twenty-seven codes were added in November:

Anmap: Image and data analysis
BKGE: Fermi-LAT Background Estimator
CGS3DR: UKIRT CGS3 data reduction software
ECCSAMPLES: Bayesian Priors for Orbital Eccentricity
Flicker: Mean stellar densities from flicker

galpy: Galactic dynamics package
GPI Pipeline: Gemini Planet Imager Data Pipeline
HOPE: Just-in-time Python compiler for astrophysical computations
iDealCam: Interactive Data Reduction and Analysis for CanariCam
JCMT COADD: UKT14 continuum and photometry data reduction

NAFE: Noise Adaptive Fuzzy Equalization
NDF: Extensible N-dimensional Data Format Library
NEAT: Nebular Empirical Analysis Tool
OPERA: Open-source Pipeline for Espadons Reduction and Analysis
POSTMORTEM: Visibility data reduction and map making package

pyGadgetReader: GADGET snapshot reader for python
PyMGC3: Finding stellar streams in the Galactic Halo using a family of Great Circle Cell counts methods
pysovo: A library for implementing alerts triggered by VOEvents
Raga: Monte Carlo simulations of gravitational dynamics of non-spherical stellar systems
RC3 mosaicking pipeline: Creating mosaics for the RC3 Catalogue

segueSelect: SDSS/SEGUE selection function modelling
sic: Sparse Inpainting Code
SPOTROD: Semi-analytic model for transits of spotted stars
SPT Lensing Likelihood: South Pole Telescope CMB lensing likelihood code
Starlink Figaro: Starlink version of the Figaro data reduction software package

util_2comp: Planck-based two-component dust model utilities
voevent-parse: Parse, manipulate, and generate VOEvent XML packets

Five codes were added to the ASCL in October:

DIAMONDS: high-DImensional And multi-MOdal NesteD Sampling
GIZMO: Multi-method magneto-hydrodynamics+gravity code
MEPSA: Multiple Excess Peak Search Algorithm
RICH: Numerical simulation of compressible hydrodynamics on a moving Voronoi mesh
UVOTPY: Swift UVOT grism data reduction

Thirteen codes were added to the ASCL in September:

CHLOE: A tool for automatic detection of peculiar galaxies
CosmoSIS: Cosmological parameter estimation
IM3SHAPE: Maximum likelihood galaxy shear measurement code for cosmic gravitational lensing
IFSFIT: Spectral Fitting for Integral Field Spectrographs
IFSRED: Data Reduction for Integral Field Spectrographs

iSpec: Stellar atmospheric parameters and chemical abundances
LANL*: Radiation belt drift shell modeling
mixT: single-temperature fit for a multi-component thermal plasma
Nahoon: Time-dependent gas-phase chemical model
ORBS: A reduction software for SITELLE and SpiOMM data

rmfit: Forward-folding spectral analysis software
Slim: Numerical data compression for scientific data sets
Tsyganenko Geomagnetic Field Models

Twenty-three codes were added to the ASCL in August:

APS: Active Parameter Searching
bamr: Bayesian analysis of mass and radius observations
CosmoPhotoz: Photometric redshift estimation using generalized linear models
GALAPAGOS-C: Galaxy Analysis over Large Areas
GALIC: Galaxy initial conditions construction

HEAsoft: Unified Release of FTOOLS and XANADU
IIPImage: Large-image visualization
Imfit: A Fast, Flexible Program for Astronomical Image Fitting
LIA: LWS Interactive Analysis
LightcurveMC: An extensible lightcurve simulation program

NumCosmo: Numerical Cosmology
O2scl: Object-oriented scientific computing library
PhotoRApToR: PHOTOmetric Research APplication TO Redshifts
PIA: ISOPHOT Interactive Analysis
pieflag: CASA task to efficiently flag bad data

POET: Planetary Orbital Evolution due to Tides
RDGEN: Routines for data handling, display, and adjusting
Skycorr: Sky emission subtraction for observations without plain sky information
SPAM: Source Peeling and Atmospheric Modeling
VisiOmatic: Celestial image viewer

VPFIT: Voigt profile fitting program
vpguess: Fitting multiple Voigt profiles to spectroscopic data
WSClean: Widefield interferometric imager

Twenty codes were added to the ASCL in July:

AstroML: Machine learning and data mining in astronomy
ASTRORAY: General relativistic polarized radiative transfer code
BayesFlare: Bayesian method for detecting stellar flares
Brut: Automatic bubble classifier
CLE: Coronal line synthesis

e-MERLIN data reduction pipeline
Exopop: Exoplanet population inference
EZ_Ages: Stellar population age calculator
Halogen: Multimass spherical structure models for N-body simulations
kungifu: Calibration and reduction of fiber-fed IFU astronomical spectroscopy

MATLAB package for astronomy and astrophysics
MCMAC: Monte Carlo Merger Analysis Code
Period04: Statistical analysis of large astronomical time series
PINGSoft2: Integral Field Spectroscopy Software
SAMI: Sydney-AAO Multi-object Integral field spectrograph pipeline

SPECDRE: Spectroscopy Data Reduction
The Starfish Diagram: Statistical visualization tool
TWODSPEC: Long-slit and optical fiber array spectra extensions for FIGARO
VIDE: The Void IDentification and Examination toolkit
VStar: Variable star data visualization and analysis tool

Twenty codes were added to the ASCL in June:

ASTROM: Basic astrometry program
ASURV: Astronomical SURVival Statistics
Autoastrom: Autoastrometry for Mosaics
CGS4DR: Automated reduction of data from CGS4
COCO: Conversion of Celestial Coordinates

CoREAS: CORSIKA-based Radio Emission from Air Showers simulator
FROG: Time-series analysis
GAUSSCLUMPS: Gaussian-shaped clumping from a spectral map
IRAS90: IRAS Data Processing
IRCAMDR: IRCAM3 Data Reduction Software

IUEDR: IUE Data Reduction package
JCMTDR: Applications for reducing JCMT continuum data in GSD format
MATCH: A program for matching star lists
PAMELA: Optimal extraction code for long-slit CCD spectroscopy
PERIOD: Time-series analysis package

POLMAP: Interactive data analysis package for linear spectropolarimetry
RV: Radial Components of Observer’s Velocity
STARMAN: Stellar photometry and image/table handling
TSP: Time-Series/Polarimetry Package
VADER: Viscous Accretion Disk Evolution Resource

Eighteen codes were added to the ASCL in May:

ATV: Image display tool
CURSA: Catalog and Table Manipulation Applications
DATACUBE: A datacube manipulation package
Defringeflat: Fringe pattern removal
DIPSO: Spectrum analysis code

ECHOMOP: Echelle data reduction package
ESP: Extended Surface Photometry
FLUXES: Position and flux density of planets
FORWARD: Forward modeling of coronal observables
HIIPHOT: Automated Photometry of H II Regions

LBLRTM: Line-By-Line Radiative Transfer Model
PHOTOM: Photometry of digitized images
PISA: Position Intensity and Shape Analysis
POLPACK: Imaging polarimetry reduction package
PROPER: Optical propagation routines

TelFit: Fitting the telluric absorption spectrum
The Hammer: An IDL Spectral Typing Suite
TRIPP: Time Resolved Imaging Photometry Package