ISR simulation tools

• Existing ISR simulator

• Simulate a new ISR

• ISR blackbox python module 

Run simulations of the existing Millstone Hill ISR

• 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..

Build a low power Millstone Hill background ISR

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.  To do this, use the Simulate a new ISR tool.  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..