May 13, 2013: Further to AAVSO Alert Notice 471 (http://www.aavso.org/aavso-alert-notice-471) and AAVSO Special Notice #351 (http://www.aavso.org/aavso-special-notice-351), HST/COS is scheduled to observe the dwarf nova SDSS J153817.35+512338.0:
SDSS J153817.35+512338.0 2013 May 16 22:44:06 through May 17 02:14:05 UT
May 8, 2013: Further to AAVSO Alert Notice 471 (http://www.aavso.org/aavso-alert-notice-471)and AAVSO Special Notice #350 (http://www.aavso.org/aavso-special-notice-350), HST/COS is scheduled to observe the eclipsing WZ Sge-type cataclysmic variable 1RXS J105010.3-140431:
1RXS J105010.3-140431 2013 May 10 07:51:01 through 12:01:57 UT
April 30, 2013: Further to AAVSO Alert Notice 471 (http://www.aavso.org/aavso-alert-notice-471), HST/COS is scheduled to observe the eclipsing WZ Sge-type cataclysmic variable 1RXS J105010.3-140431:
1RXS J105010.3-140431 2013 May 10 07:51:01 through 12:01:57 UT
