Aerolog

An Android app for model rocketry enthusiasts to log launches, capture launch-site data, and get an automatic post-flight readout on how each flight went. Every launch records its motor, location, altitude, and recovery condition, and Aerolog analyzes that data on-device to flag issues like steep launch angles or underperforming altitude.

Features

• Launch logging — record rocket name, motor type, launch angle, max altitude, flight duration, recovery condition, weather notes, and outcome for every flight.
• GPS launch sites — capture the launch location and elevation automatically from the device's location services.
• Launch photos — attach a photo of each launch straight from the camera.
• On-device flight analysis — a rule-based analyzer reviews each launch (angle, altitude vs. expected for the motor class, recovery condition, outcome) and returns a plain-language verdict: Nominal, Minor Issues, or Needs Review.
• Launch history — browse, edit, and delete past launches, synced to the cloud per account.
• Accounts & sync — email/password auth with per-user data stored in Firestore.
• Onboarding flow — a first-run walkthrough introducing the app.

Tech stack

• Language: Java
• Platform: Android (minSdk 24, targetSdk 36)
• Backend: Firebase Authentication + Cloud Firestore
• Location: Google Play Services Location
• UI: Material Components, Navigation Component, ViewPager2, SwipeRefreshLayout, SplashScreen
• Images: Glide
• Build: Gradle (Kotlin DSL)

The launch-analysis logic lives in aerotracker/app/src/main/java/com/example/aerotracker/analysis/ as pure Java with no Android dependencies, so it's covered by JUnit tests (LaunchAnalyzerTest).

Setup

1. Clone the repo and open the aerotracker/ directory in Android Studio.
2. Create a Firebase project and add an Android app with the package name com.example.aerotracker.
3. Enable Email/Password authentication and Cloud Firestore in the Firebase console.
4. Download your google-services.json and place it in aerotracker/app/.
5. Build and run on a device or emulator (API 24+).

cd aerotracker
./gradlew assembleDebug      # build a debug APK
./gradlew test               # run unit tests

Screenshots

Onboarding	Log a launch	Launch history	Flight analysis
coming soon	coming soon	coming soon	coming soon