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PTI Data Overview and Access

Contents

Data Flow

Data access

The Level 1 data are available through a web interface which accesses all the desired Level 1 data from a database. The database allows selection of data across many nights, and using a variety of selection criteria. For instance, all data with a given project ID, or a for a given target, or for a range of dates, can be retrieved in one query. The interface allows exporting your L1 data in ASCII or FITS formats.

Public users have access to PTI data once the proprietary period has expired by self-registering for an account to our web access tool.

Interferometer modes

Although PTI operates in several modes, only visibility amplitude (also called V2 or NIRV2) data are publicly available.

Formats for L1 and L2 files

The PTI Level 1 and Level 2 data are available in both FITS and ASCII formats. The following links detail the file format in each case:

Quality Assessment

As part of the Level 1 file set, we include information which characterizes the data quality at different levels. For details, please consult the QA description page.

Data rights

The proprietary period for all data has ended.

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last updated June 22, 2011