Level 2 FreeFlyer Certification Exam Part B

You and your team are launching a satellite, and you’ve been tasked with analyzing a coverage scenario. The satellite is equipped with a nadir pointing sensor with a 45° Field of View (FOV). The goal of your analysis is to determine which orbit regime will offer the best global coverage. To analyze global coverage, start by creating a PointGroup with 500 points evenly distributed on Earth. Using the Orbit Wizard, create three Spacecraft using the following parameters as the independent variables.

Spacecraft1 Parameters:

Spacecraft2 Parameters:

Spacecraft3 Parameters:

To compare each of the orbit regimes there must be a few constants. For each of the created Spacecraft, update the Spacecraft’s integrator settings and add a Sensor with the parameters found below.

Propagator:

Sensor Properties:

Now that the Spacecraft objects have been created, in a one-day propagation loop, analyze the coverage between each Spacecraft and the global PointGroup. To answer the following questions, inside your propagation loop, use the PointGroup.Coverage() method to gather data for a Report which includes the current epoch, number of points seen by each Spacecraft, and total number of points seen collectively.

You and your team are launching a satellite to Low Earth Orbit (LEO), and you’ve been tasked with analyzing a coverage scenario. You’ve been given a list of station acronyms for the ground stations your satellite will communicate with, and your job is to generate data products to determine which stations will provide you with the most coverage in the first week on orbit. Starting Jan 01, 2024 00:00:00.000000000, generate data products for the first week which contain the acquisition of signal (AOS), loss of signal (LOS), duration, and elevation between your Spacecraft and the list of GroundStations.

Spacecraft Orbital Elements:

GroundStations of Interest:

1. DS46

2. DS16

3. DS55

4. KS2P

5. JSCJ

6. CTSS