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Last modified: 04/22/24

CXC/ACIS Operations

Welcome to our home page. ACIS, the Advanced CCD Imaging Spectrometer, is an instrument built by a team of scientists and engineers from the Massachusetts Institute of Technology's Center for Space Research and the Pennsylvania State University for the Chandra X-Ray Observatory. ACIS shares the Chandra focal plane with the High Resolution Camera. However, what you will find here is contact information and other resources relevant to the Chandra X-ray Observatory Center (CXC) ACIS Operations team members.

ACIS Operations Scientist On-Duty Schedule

Please consult the following table to determine the ACIS Operations scientist on-duty to contact for mission planning purposes or spacecraft emergencies:


Week Of Scientist Work Cell
Apr 22 - Apr 28 Paul Plucinsky 6-7726 617-721-4366
Apr 29 - May 5 Gregg Germain 6-1558 617-785-0976
May 6 - May 12 Jack Steiner 6-7988 617-680-9306
May 13 - May 19 John ZuHone 6-1816 781-708-5004
May 20 - May 26 Jack Steiner 6-7988 617-680-9306
Mar 27 - Jun 2 Catherine Grant 617-253-0797 617-584-2686
Jun 3 - Jun 9 John ZuHone 6-1816 781-708-5004
Jun 10- Jun 16 Gregg Germain 6-1558 617-785-0976
Jun 17 - Jun 23 Jack Steiner 6-7988 617-680-9306
Jun 24 - Jun 30 Jim Francis 617-258-8258 774-270-2359
Jul 1 - Jul 7 Paul Plucinsky 6-7726 617-721-4366

Contact and Leave Information

Operations Memos, Documents and Links

Non-Load Event Tracking

ACIS Thermal

ACIS Procedures


ACIS Orbital Fluence

EPHIN Orbit Thresholds

Real-Time Telemetry Links

Current MP Schedules


Shift Reports

Related ACIS and Chandra Web Sites:

Solar Cycle Info
Solar Cycle data and predictions

Solar Cycle 25 prediction article

Spacecraft Configuration and Constants

IP&CL - P014

Latest IP&CL - P015

Web Page Maintained by:
Gregg Germain, Paul Plucinsky, John ZuHone, & Jack Steiner
(Please feel free to send us any comments or suggestions!)

The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory.
60 Garden Street, Cambridge, MA 02138 USA.    Email: cxcweb@head.cfa.harvard.edu
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