Chandra X-Ray Observatory (CXC)

Cycle 21 Approved Multicycle Proposals

All targets accepted pending a successful technical review



Proposal P.I.                        Tgt Target Name                AppTime  Cycle+1  Cycle+2
----------------------------------------------------------------------------------------------------
21200230 AYRES                         1 XI BOO                       10.00    10.00    10.00
21200230 AYRES                         2 70 OPH                       10.00    10.00    10.00
21400343 Wijnands                      1 Quiescent source             90.00    30.00    30.00
21500371 Halpern                       1 PSR J0821-4300               45.00    50.00    55.00
                                                                    -------  -------  -------
                                                                     155.00   100.00   105.00

10.14.2 Tuesday, September 16, 2025
The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA.   Email: cxchelp@cfa.harvard.edu Smithsonian Institution, Copyright © 1998-. All rights reserved.