The Mesosphere-Lower Thermosphere Turbulence Experiment, or M-TeX, and the Mesospheric Inversion-layer Stratified Turbulence, or MIST, experiment were successfully conducted the morning of Jan. 26, 2015, from the Poker Flat Research Range, Alaska.

The first M-Tex rocket, a NASA Terrier-Improved Malemute sounding rocket, was launched at 4:13 a.m. EST and was followed one-minute later by the first MIST experiment payload on a NASA Terrier-Improved Orion.

The second M-TeX payload was launched at 4:46 a.m. EST and also was followed one minute later by the second MIST payload.

Preliminary data show that all four payloads worked as planned and the trimethyl aluminum, or TMA, vapor trails were seen at the various land-based observation sites in Alaska.

A fifth rocket carrying the Auroral Spatial Structures Probe remains ready on the launch pad. The launch window for this experiment runs through Jan. 27.