September 24, 2013: HST/COS is scheduled to observe the SU UMa-type variable BB Ari:
BB Ari 2013 September 27 03:01:26 through 06:29:37 UT
The HST scheduling team will likely make their final decision early on September 26, so your observations are essential NOW.
September 5, 2013: HST/COS is scheduled to observe the WZ Sge-like SU UMa variable GZ Cet (SDSS J013701.06-091234.9) next week. Observations are scheduled for:
GZ Cet 2013 Sep. 13 12:24:02 through 19:06:54 UT
March 3, 2010: Dr. Paula Szkody (U. Washington) has requested the help of AAVSO observers to provide monitoring of two cataclysmic variables, GW Lib and V842 Cen, in support of Hubble Space Telescope observations in March 2010. Observations of both objects are requested beginning immediately, with intensive observations requested beginning 48 hours prior to the scheduled HST visit.
July 19, 2013: In AAVSO Special Notice #364 (http://www.aavso.org/aavso-special-notice-364)
the variable 1RXS J213807.1+261958 (OT J213806.6+261957) was stated as being the northern of the pair. It is in fact the SOUTHERN of the pair, and is moving to the northeast.
The coordinates given in Special Notice #364 were correct and are repeated here for your convenience.
July 19, 2013: HST/COS is scheduled to observe the WZ Sge-type variable 1RXS J213807.1+261958 (= OT J213806.6+261957) next week. Observations are scheduled for:
1RXS J213807.1+261958 (OT J213806.6+261957)
2013 July 25 17:26:50 through 21:05:23 UT
The scheduling team will likely make their final decision early on July 24, and your observations will be essential now through July 26.
July 16, 2013: Based on your observations, the HST/COS team will be making the final decision tomorrow afternoon (2013 July 17) or the next morning whether to observe the dwarf nova HS 2214+2845 = V513 Peg on:
V513 Peg (HS 2214+2845) 2013 July 18 21:08:59 through July 19 01:04:23 UT
V513 Peg is 16.8V at minimum and 12.5V at maximum. Please monitor V513 Peg closely through July 19.
July 8, 2013: The VY Scl variable OR And continues in its low state, so it has been scheduled for HST/COS observations. Based on your observations, the HST/COS team will be making the final decision tomorrow morning (2013 July 9) whether to observe OR And on:
OR And 2013 July 10 11:47:01 through 15:56:12 UT
OR And is ~18V in its low state and ~14.5V in its high state.
June 24, 2013: The date given in AAVSO Special Notice #360 for the HST/COS observations of the SU UMa-type dwarf nova CC Scl has been REVISED from June 27 to:
CC Scl 2013 Jun 29 03:19:13 through 05:54:10 UT
The HST team will be making a final decision early on June 28 about observing CC Scl based substantially on your observations, so they are essential.
June 24, 2013: HST/COS is scheduled to observe the SU UMa-type dwarf nova CC Scl:
CC Scl 2013 June 27 02:12:04 through 05:39:30 UT
The HST team will be making a final decision early on June 26 about observing CC Scl based substantially on your observations, so they are essential.
