ISR Blackbox Exercise

Part 1: Start jupyter notebook 

For instructions, see https://github.com/isrsummerschool/lecture_supplements_2022

Part 2: Run simulations of the existing Millstone Hill ISR

• From the jupyter notebook page, choose ISR_blackbox, then ISR_blackbox_existing.ipynb.

• Choose Cell -> Run All to start the UI.  (The code behind this simulation is available in the jupyter notebook under ISR_blackbox -> ISR_blackbox.py, if you want to check it out later)

• Choose the Millstone Misa ISR in single pulse 480 microsecond mode.

• Run for 24 hours during Jan. 1st  using 240 seconds of integration at 90 degrees elevation.

• Determine how many seconds you can reduce the integration period to and still have less than 10% error at all times at 750 km altitude.

• Describe what happens when the integration period gets short (1 second).

• Repeat the second and third steps at an elevation of 4 degrees and a 2000 microsecond pulse and an altitude of 500 km..

Part 3: Build a low power Millstone Hill background ISR

• From the jupyter notebook page, choose ISR_blackbox, then ISR_blackbox_new.ipynb.

• Choose Cell -> Run All to start the UI. 

The idea of this exercise is to build a low power version of the Millstone zenith antenna that can make a measurement every 5 minutes.  Use the present zenith antenna which has the following characteristics:

• Freq: 440E6 Hz

• Diameter: 68 m

• Pulse length: 480.0E-6 seconds

• 0.05 duty cycle

• 88 degree elevation

• Latitude 42 degrees, longitude -71 degrees

Determine how low peak power you can use to get 10% error at 500 km at 5 minutes integration across the entire day on Jan 1st..