To facilitate high demand during the first few weeks, MAST has copied all the pipeline-produced products to the Amazon cloud from both the "Webb First Images" (aka, "ERO") and the Commissioning programs.  

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Bulk Downloads from AWS

Copies of the early JWST data products have been hosted in Amazon Web Services (AWS). Using these scripts:

  1. Retrieves the data straight from Amazon cloud to your computer.  This avoids all network traffic in/out of STScI, and is limited only by your own internet connection speed to AWS US East.
  2. Ensures you'll be able to download the released data products immediately, even while the files at MAST migrate from "exclusive access" to "anonymous access" over the first couple days.

The scripts only require that curl be installed on your machine.  When you invoke a script, the data will be downloaded from Amazon cloud at no cost to you. You do not require an account of any kind to retrieve the data. 

Each line in the script corresponds to a single data file. So if you want to make edits to the products you retrieve, you can simply delete or comment out (add '#' as the first character) lines for files you do not want to download.

Three scripts are available for each program ID: "Calibrated" contain Stage 2+3 products, "Uncalibrated" contain Stage 0+1 products, and "Guide Star" contain guide star files.  See for a description of the products contained within each Stage.

Data Quality Caveats

The products linked here were produced by the standard calibration pipeline. At this early stage of the mission, with the current operational pipeline and available reference files, calibrated products may show a variety of known issues. Please check the JWST Calibration Pipeline Caveats page in JDox for more information about limitations of the current data and suggested options.

Table of Scripts - Webb First Images ("ERO" Programs) 

The links in each row will download a script for a particular category of products related to a given Program ID. Execute the script on your own platform to retrieve the associated data from AWS.  Note that these scripts will download all pipeline products for the program ID, even if the press release images used a subset of the observations within a program.

The total volume of data downloaded can be as high as tens or hundreds of GB, be sure you have plenty of space on your drive before you execute the script.

NOTE: If you run the bash shell and are having trouble running these scripts as-is, you can replace the first line in the .sh file with:


NOTE: Windows users may want to consider installing a tool such as CygWin to execute the .sh scripts. More information on CygWin here:  Alternatively, you can convert the shell scripts into PowerShell (generally replace "curl" with "curl.exe", but consult online documentation for guidance on how to run curl in Windows PowerMapper).

JWST Program IDDescriptionBulk Download Scripts
2731NGC 3324 (Carina)Calibrated | Uncalibrated | Guide Star
2732Stephan's QuintetCalibrated | Uncalibrated | Guide Star
2733NGC 3132 (Southern Ring Nebula)Calibrated | Uncalibrated | Guide Star
2734WASP-96 b and HAT-P-18 b exoplanetsCalibrated | Uncalibrated | Guide Star
2736SMACS 0723 galaxy lensing cluster ("JWST Deep Field")Calibrated | Uncalibrated | Guide Star

Table of Scripts - Commissioning Programs 

Many datasets were collected during the six months of commissioning, including some before the telescope was aligned or had reached operating temperature. Certain highlighted datasets represent those that the mission team have identified as being most useful to researchers, and are available at: JWST Commissioning Data Highlights. For completeness, we provide in the table below bulk download scripts for every program executed during commissioning.

The links in each row will download a script for a particular category of products related to a given Program ID. Execute the script on your own platform to retrieve the associated data from AWS.  Note: Some Commissioning programs do not have any guide star products associated with them, in that case, there is no link for a guide star shell script.

JWST Program IDDescriptionBulk Download Scripts
1012MIRI Calibration Lamp OperationCalibrated | Uncalibrated
1021CAR FGS-015: Moving Target Test with NIRCam and NIRISSCalibrated | Uncalibrated | Guide Star
1022CAR FGS-017 Straylight for Moving Targets (All SIs)Calibrated | Uncalibrated | Guide Star
1023MIRI-005 MIRI Detector AnnealsCalibrated | Uncalibrated | Guide Star
1024MIRI plate scale and distortionCalibrated | Uncalibrated | Guide Star
1027MIRI Imager Photometric Zero Points and Stability (MIRI-011 / Program 1027)Calibrated | Uncalibrated | Guide Star
1028CAR-MIRI12-1028-PSFCalibrated | Uncalibrated | Guide Star
1029MIRI Target Acquisition VerificationCalibrated | Uncalibrated | Guide Star
1030MIRI Readnoise and Dark CurrentCalibrated | Uncalibrated
1031CAR MIRI-015 (MRS): MIRI MRS Spectral Resolution and DispersionCalibrated | Uncalibrated | Guide Star
1032MIRI Imager and LRS Glints and Scattered LightCalibrated | Uncalibrated | Guide Star
1033MIRI LRS Photometric Sensitivity and StabilityCalibrated | Uncalibrated | Guide Star
1034MIRI LRS Slit Transmission and LossesCalibrated | Uncalibrated | Guide Star
1037MIRI Coronagraphic Contrast RatiosCalibrated | Uncalibrated | Guide Star
1038Locations of Centers of MIRI CoronagraphsCalibrated | Uncalibrated | Guide Star
1039MIRI Detector Latent Image CharacterizationCalibrated | Uncalibrated | Guide Star
1040MIRI External Flat Field - ImagerCalibrated | Uncalibrated | Guide Star
1042MIRI External Flat Field - Low Resolution SpectrometerCalibrated | Uncalibrated | Guide Star
1043MIRI External Flat Field - CoronagraphsleconCalibrated | Uncalibrated | Guide Star
1045MIRI Coronagraphic PSF Characterization, Radial Transmission and 4QPM TransitionCalibrated | Uncalibrated | Guide Star
1046MIRI Detector FunctionalityCalibrated | Uncalibrated
1047MIRI External Flat Field - MRSCalibrated | Uncalibrated | Guide Star
1049MIRI MRS PSF Characterization and Spatial ResolutionCalibrated | Uncalibrated | Guide Star
1050MIRI MRS Photometric Sensitivity and StabilityCalibrated | Uncalibrated | Guide Star
1051MIRI Imager, LRS, Coronagraph Pixel FlatCalibrated | Uncalibrated | Guide Star
1052MIRI Sky Background and Variation with Telescope PointingCalibrated | Uncalibrated | Guide Star
1053MIRI LRS PSF CharacterizationCalibrated | Uncalibrated | Guide Star
1054MIRI LRS Extended Source Flat FieldCalibrated | Uncalibrated | Guide Star
1059NIRCam Pre-Coarse Phasing Verification (CAR NIRCam-05)Calibrated | Uncalibrated | Guide Star
1074CAR NIRCam-029 Photometric Zero Points and StabilityCalibrated | Uncalibrated | Guide Star
1089NIRISS GR150C/R Flux CalibrationCalibrated | Uncalibrated | Guide Star
1090NIRISS GR150C/R Wavelength CalibrationCalibrated | Uncalibrated | Guide Star
1091NIRISS GR700XD Flux CalibrationCalibrated | Uncalibrated | Guide Star
1118NIRSpec Wide Aperture Target Acquistion Verification (WATA)Calibrated | Uncalibrated | Guide Star
1124CAR NIRSpec-025: Ghosts, Glints & Scattered Light CheckCalibrated | Uncalibrated | Guide Star
1125NIRSpec Wavelength Calibration VerificationCalibrated | Uncalibrated | Guide Star
1144OTE-10 SIAF PRD and onboard updates (NRC and FGS)Calibrated | Uncalibrated | Guide Star
1145OTE-11 SIAF PRD Update (NIRISS-FGS Alignment), OTE-11Calibrated | Uncalibrated | Guide Star
1164SIAF PRD Update (NIRSpec-FGS Alignment)Calibrated | Uncalibrated | Guide Star
1171SIAF PRD Update (MIRI-FGS Alignment)Calibrated | Uncalibrated | Guide Star
1172OTE MIRI Pupil Alignment CheckCalibrated | Uncalibrated | Guide Star
1259MIRI LRS Spectral Dispersion and ResolutionCalibrated | Uncalibrated | Guide Star
1261Bright source sensitivity investigationCalibrated | Uncalibrated | Guide Star
1406Verification of the MIRI Coronagraphic Target AcquisitionCalibrated | Uncalibrated | Guide Star
1442Time Series Stability VerificationCalibrated | Uncalibrated | Guide Star
1444FGS-021 NIRSpec Moving Target TestCalibrated | Uncalibrated | Guide Star
1445Thermal Slew Cold Attitude ActivitiesCalibrated | Uncalibrated | Guide Star
1449MIRI-090 MIRI Moving Target TestCalibrated | Uncalibrated | Guide Star
1463MIMF Recovery-1: NRC Multi-field WFS-3Calibrated | Uncalibrated | Guide Star
1464MIMF Recovery-1: In-focus PSF check-2Calibrated | Uncalibrated | Guide Star
1465MIMF Measurements-2Calibrated | Uncalibrated | Guide Star
1541NIRISS Sensitivity and Stability for Transiting Exoplanet ObservationsCalibrated | Uncalibrated | Guide Star
1546CAR_MIRI-065 FPS FrameResets and RSCD CharacterizationCalibrated | Uncalibrated

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