October 30, 2015: Further to AAVSO Alert Notice 503, Dr. Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) informs us that the Chandra observations of the symbiotic variable RT Cru have been scheduled.
Notes: This campaign has been extended indefinitely. Dr. Karovska requests monitoring of RW Cru until further notice. - Elizabeth O. Waagen, 17 April 2020
Discussion forum thread created for this campaign at Campaigns and Observation Reports: https://www.aavso.org/rt-cru-monitoring-campaign - Elizabeth O. Waagen, 21 May 2020
January 27, 2012: The symbiotic variable RT Cru has brightened in hard x-rays. Dr. Jeno Sokoloski, Columbia University, has requested AAVSO assistance in monitoring RT Cru both now and in the future to see if it is doing anything unusual in the optical. The Swift/BAT hard X-ray light curve shows RT Cru has apparently been gradually brightening over the past few years.