MASSACHUSETTS INSTITUTE OF TECHNOLOGY NASA GODDARD SPACE FLIGHT CENTER ORBITAL SCIENCES CORPORATION NASA AMES RESEARCH CENTER SPACE TELESCOPE SCIENCE INSTITUTE SMITHSONIAN ASTROPHYSICAL OBSERVATORY MAST Daryl Swade STScl

G O D D A R D S P A C E F L I G H T C E N T E R 22 Agenda Changes Since CSR Requirements Flow down MAST Overview MAST Requirements Interfaces Schedule Risks / Open Issues

G O D D A R D S P A C E F L I G H T C E N T E R 33 Changes since CSR Full Frame Image (FFI) cadence change from 2 hours to 30 minutes will impact archive data volume.

G O D D A R D S P A C E F L I G H T C E N T E R 44 Requirements Flow Down Show the requirements flow down and where the MAST fits into the flow.

G O D D A R D S P A C E F L I G H T C E N T E R 55 MAST Overview 278 TB – Holdings size as of November 1, TB – Average Ingest Rate per month. 19 TB – average data distribution rate per month. 1,5000,000 – Average number of searches per month.

G O D D A R D S P A C E F L I G H T C E N T E R 66 TESS Data Archive Context

G O D D A R D S P A C E F L I G H T C E N T E R 77 TESS Archive Data Flow

G O D D A R D S P A C E F L I G H T C E N T E R 88 Archive Functional Overview Data Receipt –Accept data and generate archive manifest Ingest –Store and catalog all data Archive Catalog –Provide an on-line science catalog of TESS metadata for searches, data mining, and data retrieval Implemented on relational DBMS –Stage TESS Target Catalog for archival use Storage Broker –Maintain all data files on primary archive –Optionally, maintain data files on safe store and on-line cache

G O D D A R D S P A C E F L I G H T C E N T E R 99 Archive Functional Overview (cont.) Archive User Interface –Make TESS data available to the astronomical community though the MAST interface at STScI Web-based query/preview/retrieval interface –Create and maintain software tools required to search the TESS archive catalog This includes user access to target lists. –Create and maintain software tools required to access data Data Distribution –Retrieve requested data from storage broker –Ensure proper proprietary access to TESS data in the archive based on the Science Office defined TESS Data Policy Archive Operator Interface –Operator interface for monitoring and control of the system

G O D D A R D S P A C E F L I G H T C E N T E R 10 TESS Science Data Archive Functions from CSR Storage of raw, reduced, and calibrated pixel and light curve data, including centroids, for all stars and planet candidates, to be transferred to MAST for public access on a trimester basis. With the ~22 day timeline for data passage through the pipeline, this implies that data will be 2-4 months old at time of public release. Storage of image data: raw, reduced, calibrated. Storage of full-frame images acquired by TESS for validation of instrument performance. Storage of some TESS engineering data, as needed, to update science header keywords. Lists of Threshold Crossing Events from TPS in XML format will be exported to MAST (and to the Exoplanet Archive). Data Validation reports for each target with TCEs processed by DV will be exported to the MAST as PDFs and with numerical results in XML files. High Level Science Products provided to STScI from the TESS Science Operations Center. These include light curves and any compiled catalog data including a TESS Object of Interest catalog (TOI). A simple interface based on the Mission supplied FITS files for data search and retrieval.

G O D D A R D S P A C E F L I G H T C E N T E R 11 MAST Requirements Discuss the Level 3 requirements

G O D D A R D S P A C E F L I G H T C E N T E R 12 Driving Requirements Discuss the driving requirements for MAST development Data Receipt The TESS Data Archive shall receive to be specified data from the SPOC. The TESS Data Archive shall receive to be specified data from the TESS Science Office. Data Receipt shall generate a manifest for all data received. Ingest Ingest shall store all TESS data in the TESS Data Archive. Ingest shall catalog all TESS data in the TESS Data Archive. Storage Broker The Storage Broker shall store all TESS data in the primary archive. The Storage Broker shall store to be selected TESS data on safe store media. The Storage Broker shall store to be selected TESS data in the on-line cache.

G O D D A R D S P A C E F L I G H T C E N T E R 13 Driving Requirements (cont.) Discuss the driving requirements for MAST development Archive Catalog The TESS Data Archive shall provide an on-line science catalog of metadata for searches, data mining, and data retrieval. The TESS science catalog shall contain metadata extracted from the science dataset keyword values. The TESS archive database shall track each data set with a field indicating the proprietary status of the corresponding data files. Data Distribution TESS data shall be made available to the astronomical community through the MAST interface at STScI under the proprietary rights restrictions defined by the TESS Data Policy. The TESS Data Archive shall be able to distribute data to archive users via electronic mechanisms or removable media with a user specified preference, but at the discretion of the Archive Operator.

G O D D A R D S P A C E F L I G H T C E N T E R 14 Driving Requirements (cont.) Discuss the driving requirements for MAST development Archive User Interfaces MAST shall create and maintain software tools required to access data in the TESS Data Archive for at least 10 years after the end of the mission. Data Security MAST shall protect all TESS data against unauthorized access per requirements established by NPR , Security of Information Technology.

G O D D A R D S P A C E F L I G H T C E N T E R 15 MAST Interfaces Discuss the interfaces between the POC, SPOC and MAST. –Talk about the interface including the network and protocols –Talk about the data flow and the latency.

G O D D A R D S P A C E F L I G H T C E N T E R 16 TSO data to MAST Data productDelivery frequency Data volumeDelivery mechanism TESS Input Catalog Targets of Interest List Archive follow up data

G O D D A R D S P A C E F L I G H T C E N T E R 17 SPOC Data to MAST Data ProductGeneration Frequency Delivery frequency Data volumeDelivery mechanism Telemetry data Science pixels - uncalibrated Collateral pixels - uncalibrated Science pixels - calibrated Collateral pixels - calibrated Calibration reference files Focal plane geometry model Calibrated light curves Centroid time-series Full frame images - uncalibrated Full frame images - calibrated Pixel mapping reference files Optimal aperture definitions Pointing profiles Data validation products

G O D D A R D S P A C E F L I G H T C E N T E R 18 Archive User Interface

G O D D A R D S P A C E F L I G H T C E N T E R 19 Schedule Show the MAST Schedule –Include status and path to PDR

G O D D A R D S P A C E F L I G H T C E N T E R 20 Risks / Open Issues Failing to involve MAST staff closely and early in Ground Segment activities risks delayed optimization of TESS science archive usage and increased software development costs in phases D and E.