The HEASARC welcomes your participation in a brief survey to capture how users access and utilize HEASARC data, software, and services. The outcome(s) of this survey will be used to guide, prioritize, and plan our activities and development in the coming years. It contains 20 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. The survey is open until Dec 18, 2023. We thank you in advance for your valuable feedback.

Search:

[Advanced Search]



next up previous contents
Next: set Up: select Previous: select MKF   Contents

select obscat

Syntax:

This creates a reduced catalogue, based on a selection expression. The original catalogue is moved to a new name. If the original catalogue was xsel_s1.cat, then it will be moved to xsel_s1_v.cat. The new obscat will have the name xsel_s1.cat, and will be automatically loaded for you. So choose and show obscat will now act on this catalogue. N.B. this command does not read in any data, it only produces a reduced catalogue. You will now have to choose data from it. 

xsel > select obscat <cat_sel>

Example: 

xsel > select obscat "datamode=='BRIGHT'"

This makes a reduced obscat containing only files for which the datamode is BRIGHT.


HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public
Last modified: Tuesday, 10-Jan-2023 11:02:59 EST

The HEASARC welcomes your participation in a brief survey to capture how users access and utilize HEASARC data, software, and services. The outcome(s) of this survey will be used to guide, prioritize, and plan our activities and development in the coming years. It contains 20 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. The survey is open until Dec 18, 2023. We thank you in advance for your valuable feedback.