V1159 Ori has now shown a superoutburst event starting on Jan 7 and running to Jan 15 approximately.
It has been 126 days since the last superoutburst making this interval in the observing record that I am aware of. This continues an irregular trend towards longer intervals between superoutbursts. Normal outbursts have continued as usual. Ian’s observations above are the last before the outburst started.
I interpret this as showing that the flow of material from the donor star has not stopped. Rather the quantity flowing has fallen to a point where conditions needed for a superoutburst have not been present.
Time now to write the work up and submit to VSSC.
Thanks to all who have contributed. As usual the interest continues. Has this been an outlier or is the next superoutburst only 40 days away?
STewart