• NuSTAR Cycle 8 Due Date January 28, 2022 (24 Jan 2022)
    Phase-1 science proposals are due by 4:30 p.m. EST, January 28, 2022. Please see the Guide for Proposers and the Guidelines for Anonymous Proposals for more details.
  • NuSTAR Caldb Update (19 Jan 2022)
    The NuSTAR FPM caldb has been updated to version 20220118. This release includes a new clock correction file, v131. Please see the release notes for more details.
  • Swift CALDB updated (11 Jan 2022)
    The Swift SC caldb has been updated (update version 20220111) to update the clock correction file to v146 ...
  • NuSTAR Caldb Update (05 Jan 2022)
    The NuSTAR FPM caldb has been updated to version 20220105. This release includes a new clock correction file, v130. Please see the release notes for more details.
  • NuSTAR Caldb Update (21 Dec 2021)
    The NuSTAR FPM caldb has been updated to version 20211221. This release includes a new clock correction file, v129. Please see the release notes for more details.
  • The Million Quasars Catalog (14 Dec 2021)
    The latest version (v7.4, 12 December 2021) of the Million Quasars (MILLIQUAS) Catalog (Eric Flesch 2009 - 2017) containing a lot more than one million (1,115,590 to be exact) likely quasars is now available in both Browse and Xamin.