CS Knowledge Base

Name		Name	Last commit message	Last commit date
parent directory ..
dates		dates
groundstations		groundstations
orbits		orbits
spacecraft		spacecraft
README.md		README.md

README.md

Input Data

Subfolders of the input_data directory contain all the input data for the python codes.

Dates

The dates CSV files contain the following data (without table headers):

Field name	Value example and unit
`start_date`	`2022-12-31-24:59:59` (parsed into a python `datetime` object)
`end_date`	`2022-12-31-24:59:59` (parsed into a python `datetime` object)
`step_size`	`10` (in seconds)
`propagation_days`	`1` (in days)

Ground stations

Field name	Value example and unit
`longitude`	`1.444209` (in degrees)
`latitude`	`43.604652` (in degrees)
`altitude`	`200` (in meters)
`minimum_elevation`	`5` (in degrees)

Orbits

Field name	Value example and unit
`semi_major_axis`	`6978140` (in meters)
`eccentricity`	`1e-3` (unitless)
`inclination`	`97.8` (in degrees)
`argument_of_periapsis`	`15` (in degrees)
`mean_local_time`	`6` (in hours)
`true_anomaly`	`0.1` (in degrees)

Spacecraft

Field name	Value example and unit
`mass`	`4` (in kg)
`drag_coefficient`	`2.2` (unitless)
`reflectivity_coefficient`	`1.5` (unitless)
`drag_area`	`0.033` (in m²)
`srp_area`	`0.033` (in m²)
`iridium_antenna_half_angle`	`60` (in degrees)
`gnss_antenna_half_angle`	`60` (in degrees)
`angular_velocity`	`4` (in degrees/s)