STScI Logo

Space Telescope Science Institute
Spike Planning and Scheduling System

What is Spike?

The Space Telescope Science Institute developed the Spike planning and scheduling software in support of the Hubble Space Telescope as a general toolkit for planning and scheduling under Contract NAS5-26555 with the National Aeronautics and Space Administration.

It is our desire that this toolkit be used to promote scientific research through the effective and efficient use of ground- and space-based astronomical observatories. By providing the Spike system to other facilities, we are developing a community of users who use and enhance the Spike system. The STScI is a clearinghouse for users, bug fixes, modifications, etc.

Spike is a general framework for planning and scheduling. Capabilities include:

  • A powerful yet efficient method (suitability functions) to represent the wide variety of strict and preferential constraints encountered in real scheduling problems
  • Long-, medium- and short-term Ground Based Telescope scheduling
  • Long and short-term Orbiting Spacecraft scheduling
  • Absolute constraints (ie., observation at time X.)
  • Relative constraints (ie., A after B by X days)
  • Resource constraints (ie., Data Volume, Number of Real Time Contacts)
  • Constraint Satisfaction Problem (CSP) based scheduler
  • Plan Windows based scheduler
  • Powerful, customizable automatic scheduler based on the multistart stochastic repair technique.
  • Fast, efficient constraint propagation and scheduling algorithms
  • Graphical user interface as well as ability to run in automated mode
  • Queue (interleaved) and batch scheduling
  • Library of mathematical, time, astronomical and graphic display utility functions.

Products

  • Astronomer's Proposal Tools
    The goal of the APT project is to improve the proposal preparation process, in order to provide users with a more intuitive, visual, and interactive experience by means of state of the art technology.
  • Percy
    Percy is an interactive computer program which provides ephemeris and geometrical event information about solar system objects.
  • PyFITS
    PyFITS is a Python module for working with FITS files.
  • PyRAF
    PyRAF is an environment that combines the power and flexibility of Python with the ability to use IRAF and STSDAS tasks.
  • SpecView
    SpecView is a spectral visualization and analysis tool.
  • Spike Planning and Scheduling System
    Multi-Mission Planning and Scheduling System used for HST and other astronomical missions.
  • ST Grants Management System
    STScI Grants Management System (ST GMS), developed for administration of Space Telescope grants, is a flexible solution for granting agencies, investigators, and research administrators.
  • StarView
    StarView is an astronomical database browser and research analysis tool.
  • stsci_python
    stsci_python is a collection of applications and tools distributed by STScI for astronomical data analysis.
  • STSDAS
    STSDAS is a software package for analyzing astronomical data.
  • TABLES
    TABLES is an external package in IRAF that provides support for tabular data for STSDAS and other packages.