Last Updated: 2015/09/17
Target of Opportunity (ToO) observations of anticipated astronomical events may be proposed for within the NuSTAR Guest Observer (GO) program. Additional opportunities to propose for ToO observations are available through the joint NuSTAR / Chandra and NuSTAR / XMM-Newton GO programs.
A full list of approved NuSTAR ToO programs is available on the NuSTAR SOC website.
In addition, the NuSTAR project will consider suggestions for unanticipated ToO observations for exceptional opportunities. Due to the constraints in operations funding, even some exceptional observations may not be possible to implement.
Please use the web form:
to submit a ToO / DDT request or to trigger an existing approved ToO program.