Many thanks to Chris Fallen (KL3WX), Assistant research professor in the University of Alaska Fairbanks Geophysical – Space Physics group , who shares the following update in reference to upcoming HAARP activities:

Regarding this February 2017 campaign, HAARP will be operating from 19 to 22 February.

Specifically, experiments will begin daily sometime after 1800 hours 2/19 UTC. My experiments will be the last each day (local Alaska time) and are scheduled to start at 0330 hours on 2/20, 2/21, and 2/23 UTC; and at 0430 hours on 2/22.

Experiment times and frequencies are subject to change for various reasons, particularly in response to ionospheric conditions shortly before each experiment.

I will do my best to update https://twitter.com/ctfallen in real time.

Operations are very active times and I will be monitoring conditions and equipment so generally speaking, for my artificial aurora experiments, your best bet is to search around 2.7 MHz +/- 100 kHz given current conditions.

For the Luxembourg effect experiments, I will try to keep the two frequencies separated by about 1 MHz, which means that they will occur earlier in my experiment window rather than later, when the ionosphere is more dense.