AAVSO Alert Notice 539 announces a campaign to monitor 5 northern dwarf novae over the next few months. Please see the notice for details and instructions.
Many thanks, and good observing!
Elizabeth Waagen, AAVSO HQ
The VLA observed SU UMa on the 20th of February. According to your observations it was in quiescence at the time, which is great. We won't need any more monitoring of this target. Thank you for all your observations, and especially to J. Toone for confirming the start time of the outburst :)
YZ Cnc was observed by the VLA on the 5th of March. Your observations show that it was in outburst at the time, so we are going to observe it again. Please keep up your monitoring of this target over the next few weeks.
RA SUN = 1 32 44
RA RX And = 1 04 36
and 32 degrees separating them in the sky, I can't help answer the question. Perhaps someone in the very far north can try when the sun is below the horizon and RX And isn't.
I did a short time series on SU Uma last night. I got it at 14.9 in V for the first 5 exposures followed by 14.7 for the last 3. Also in B at the same time, I got it at 15.2 for the first 5 exposures and then at 14.8 for the last 3. I plan to observe it tonight. It might be the start of something.
Thank you so much for your observations of RX And - especially in difficult twilight conditions. Based on the magnitudes you posted, I have decided to delay the VLA observations for now. I'll wait until it is further away from the Sun and easier to monitor. The VLA deadline for these observations is the 1st of August, so I will need to submit the observations as soon as it is visible again. Any early observations you can get of it will be extremely useful.
As a quick update, the VLA observed YZ Cnc again early this morning. Your light curve shows it to have been in outburst at the time, so I'll ask for another round of observations of it.
I just submitted the VLA observations for YZ Cnc, as it looks like it's almost back in quiescence. They will probably observe it in the next two days, so please keep an eye on it.
To date we have quiescent radio observations for Z Cam, SU UMa and U Gem, so these systems are all done. I think we'll get YZ Cnc in quiescence this time, and thereafter we only need to catch RX And :)