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.