About

The Haystack Observatory Post-processing System (HOPS) is a software package used for the manipulation of data generated by Very-long-baseline interferometry (VLBI) correlators. It is written in a combination of C/C++ and python. As data pipeline software it sits between the correlator and downstream image-processing and/or geodetic analysis packages. It’s primary purposes are basic fringe-fitting, data calibration/editing/flagging, and problem diagnosis, along with other correlator support and visualization functions. This repository contains software from both the legacy HOPS3 package as well as the currently in-development HOPS4 package. The user can optionally compile the HOPS3 software if they have the additional required dependencies.

This documentation describes HOPS version 4.0.3.

Getting Help

For questions or comments, please contact the developer mailing list:

hops-dev@mit.edu

License and Authorship

See the License and Authors sections for information on license and authorship.

Acknowledgments

Work undertaken at MIT Haystack Observatory to maintain and modernize HOPS has been supported over many years by a variety of NASA and NSF funding sources (for geodesy and astronomy, respectively). Most recently, support for this work has come from the NASA Space Geodesy Project (SGP) contract 80GSFC20C0078, and the NSF grants: AST-1935980, AST-2034306, AST-2535855, and AST-2407283.