!FDC 2/7793 ZAN AK..AIRSPACE GULKANA, AK..TEMPORARY FLIGHT RESTRICTIONS WI AN AREA DEFINED AS 2.5NM RADIUS OF 622333N1450902W (GKN007016.6) SFC-FL250 FOR ELECTROMAGNETIC RADIATION FOR SCIENTIFIC RESEARCH. PURSUANT TO 14 CFR SECTION 91.137 (A)(1) TEMPORARY FLIGHT RESTRICTIONS ARE IN EFFECT. TRANSIT THRU THE AIRSPACE MAY BE AUTH BY HAARP COMMAND CENTER, TEL 907-822-5497 OR FREQ 123.3. ANCHORAGE /ZAN/ ARTCC TEL 907-269-1103 IS THE FAA CDN FACILITY. 2212271000-2212272300

https://tfr.faa.gov/save_pages/detail_2_7793.html#areas

https://tfr.faa.gov/save_pages/notam_actual_2_7793.html