Astronomy (Jenny): With the track motor disengaged and the dome sliding smoothly, we were able to successfully align the telescope last night. We found several common objects fairly easily, but had some difficulty locating RS CVn. We expect that the currently hazy sky will add to this difficulty, but we will make another attempt at finding RS CVn shortly. If successful we will return at 00:36h to take CCD pictures of the eclipse.

Communication and Navigation (Jan): Each of the three PLSS backpacks on today's EVA was equipped with a beacon which successfully transmitted real-time positioning data to the hab (and from there to the Internet) for most of the EVA. We also had voice communications with the hab (through the balloon repeater) as far north as waypoint 232 "Copernicus-Brahe Junction". EVA03 went about one kilometer further north into the badlands along the northern part of Copernicus Highway, but WPT 232 will be an excellent location for our second (ground-based) repeater. From there we expect radio coverage up to waypoint 123 "River Crossing". We will test this on a future EVA.

The EVA benefited from having the HabCom transmit time signals on the voice channel every ten minutes, which helped us return to the hab in time. We also attempted to have HabCom help us navigate by letting us know when the APRS icons indicating our positions on the map display at the hab were approaching critical waypoints, but the time delay and update rate was a bit too low for this. We will therefore try to increase the APRS transmission/update rates.

Human Factors (Jan): The participants keep taking MASCOT and MOODY tests.

Radiation (Jason): This morning, the data from yesterday's EVA was processed within Excel to make it easy for Mission Support to match radiation data points with those of the GPS. If the process cannot be automated then it can surely be done by hand. The point remains though that the data has been chronicled and collected into a format that will allow radiation level mapping.

This afternoon, the EVA took the Gamma Scout and GPS devices and data was successfully collected again along a different route. Primary Crew will do the same post-processing on today's data that it had done for yesterday's and send the to Mission Support either tonight or tomorrow morning.

The EVA tomorrow will test the radiation shielding using in-Situ resources (i.e. dirt and rocks) and some hypotheses about the positioning of the shielding sand bags will be tested. Additionally, it has been realized that the Gamma Scout's memory allows up to 9 hours of readings every minute; therefore overnight readings of the radiation levels will also be taken either tomorrow night or the night after.