Yesterday was our last day for calibration measurements. First thing in the morning we went out and unplugged the calibration source. Everything was packed up onto the back of our snowmobile and we brought it back to SPT. There will be a second round of calibration measurements made in late January, but we can't leave the source outside for that long. The source is about 3 km away from the telescope. To get an idea of the scale, that's me in front of SPT (10 meter dish). Looking out at the source from the top of the telescope, you can only see a tiny black dot at the end of the road. Zooming in, it resolves into a wooden fence (that we use
for shielding) and a big metallic square reflector. The reflector itself is 25 feet high, and in the middle is actual calibration source. Once we took the calibration box out, it was an opportune spot to take a picture!
Now that the calibration is over, I'm moving on to my last task here for SPT, upgrading part of the readout electronics.