Owner

ut-issl

17 indexed repositories · View on GitHub

s2e-core
Spacecraft Simulation Environment Core codes

C++ · 63 stars
s2e-documents
Documents for Spacecraft Simulation Environment

C · 17 stars
wings
Web-based INterface Ground-station Software

C# · 8 stars
spacecraft-thermal-multi-node-analysis
多節点熱解析用スクリプト

Python · 6 stars
capsula
CLI tool to run pre-run and post-run hooks for capturing and preserving the context of your command executions

Rust · 6 stars
s2e-ff
S2E user side repository for Formation Flying study

C++ · 5 stars
wings-tmtc-if

C# · 4 stars
s2e-user-for-c2a-core
C2A CoreにあるC2A sampleでSILSを組むためのS2E user

C++ · 3 stars
veriq
Lightweight requirements verification tool in Python

Python · 3 stars
cosmica
Modular Python package for simulating optical communication satellite constellations

Python · 3 stars
s2e-user-example
An example of S2E user side repository

C++ · 2 stars
procnote
A procedure execution tool for tracking step-by-step procedures with checkboxes, data inputs, attachments, and notes.

Rust · 1 star
c2a-generator

Python · 0 stars
github-project-workflows
common GitHub Action workflows for ISSL Project

0 stars
personal-nix-config-template
Personal Home Manager config template for the ISSL Ubuntu environment

Nix · 0 stars
repository-template
リポジトリテンプレート

0 stars
issl-ubuntu-environment-setup
Reproducible shared Ubuntu environment for ISSL

Shell · 0 stars

Beginner friendly Everything

Open All

Replace method-only ABC interfaces with Protocols Open

breaking change enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ut-issl/cosmica#267 · Opened Aug 26, 2026
Model communication terminals as topology link resources Open

breaking change enhancement priority::high

Difficulty 5/5 Over a week Newbie friendliness 30/100

ut-issl/cosmica#265 · Opened Aug 25, 2026
Report created and re-uploaded runs accurately in `capsula push --all` Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

ut-issl/capsula#1206 · Opened Aug 24, 2026
Remove plain-string server configuration syntax Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

ut-issl/capsula#1205 · Opened Aug 24, 2026
Support run names in `capsula pull` Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

ut-issl/capsula#1182 · Opened Aug 5, 2026
Stream `pull` file downloads instead of buffering whole files Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

ut-issl/capsula#1181 · Opened Aug 5, 2026
Feature: scope-level dependency declaration, validation, and scope-graph visualization Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/veriq#285 · 1 reaction · Opened Aug 3, 2026
Capture the JSON output of a command Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/capsula#1172 · Opened Jul 31, 2026
docs: computation-time aggregation example and metadata documentation Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ut-issl/veriq#280 · Opened Jul 27, 2026
feat: CLI access to the upstream subgraph with metadata listing and aggregation Open

Difficulty 5/5 Over a week Newbie friendliness 42/100

ut-issl/veriq#279 · Opened Jul 27, 2026
feat: topological fold helper for structure-aware metadata aggregation Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ut-issl/veriq#278 · Opened Jul 27, 2026
feat: definition-level upstream subgraph API (deduplicated quotient of the leaf graph) Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

ut-issl/veriq#277 · Opened Jul 27, 2026
feat: accept user metadata dict in node decorators and plumb it into the IR Open

Difficulty 4/5 3-5 days Newbie friendliness 58/100

ut-issl/veriq#276 · Opened Jul 27, 2026
Node metadata foundation: user-defined metadata on graph nodes with structure-aware aggregation Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/veriq#275 · Opened Jul 27, 2026
Support datetime64 nanosecond inputs in the elliptical propagator Open

bug priority::medium

ut-issl/cosmica#232 · 1 assignee · Opened Jul 24, 2026
Clarify link-budget parameters and unavailable-link semantics Open

enhancement needs decision priority::medium

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/cosmica#230 · Opened Jul 24, 2026
Define replacement semantics for density-weighted demand sampling Open

bug needs decision priority::medium

ut-issl/cosmica#229 · 1 assignee · Opened Jul 24, 2026
Keep User subclasses hashable when they contain terminals Open

bug priority::low

ut-issl/cosmica#228 · 1 assignee · Opened Jul 24, 2026
Clean up misleading dynamics names, comments, and messages Open

documentation enhancement priority::low

ut-issl/cosmica#227 · 1 assignee · Opened Jul 24, 2026
Decide whether to retain ground_to_usersatellite topology builders Open

needs decision priority::low

ut-issl/cosmica#226 · 1 assignee · Opened Jul 24, 2026
Consolidate communication-link geometry and solar-interference logic Open

enhancement needs decision priority::medium

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/cosmica#225 · Opened Jul 24, 2026
Consolidate topology visibility and handover machinery Open

enhancement priority::medium

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/cosmica#224 · Opened Jul 24, 2026
Extract shared communication-link acquisition state Open

enhancement priority::medium

ut-issl/cosmica#223 · 1 assignee · Opened Jul 24, 2026
Add regression coverage for untested simulation core modules Open

enhancement priority::medium

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/cosmica#221 · Opened Jul 24, 2026
Make vector normalization and boolean handling robust Open

bug priority::low

Difficulty 3/5 1-2 days Newbie friendliness 74/100

ut-issl/cosmica#220 · Opened Jul 24, 2026
Replace public-input assertions with explicit validation Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ut-issl/cosmica#219 · Opened Jul 24, 2026
Remove or deliberately support dead public and private APIs Open

enhancement needs decision priority::low

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/cosmica#218 · Opened Jul 24, 2026
Vectorize identified simulation and visualization hotspots Open

enhancement priority::low

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ut-issl/cosmica#217 · Opened Jul 24, 2026
Correct log-normal scintillation sampling Open

bug priority::high

ut-issl/cosmica#216 · 3 comments · 1 assignee · Opened Jul 24, 2026
Apply Sun exclusion in the scintillation downlink calculator Open

bug priority::medium

Difficulty 3/5 1-2 days Newbie friendliness 68/100

ut-issl/cosmica#215 · Opened Jul 24, 2026
Make topology-builder constructor conventions consistent Open

breaking change enhancement priority::low

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ut-issl/cosmica#214 · Opened Jul 24, 2026
Define gateway-level cloud-outage correlation Open

bug needs decision priority::medium

Difficulty 5/5 Over a week Newbie friendliness 38/100

ut-issl/cosmica#213 · Opened Jul 24, 2026
Handle time-grid and transition collisions in ExpEdgeModel Open

bug priority::medium

Difficulty 4/5 3-5 days Newbie friendliness 65/100

ut-issl/cosmica#212 · 1 comment · Opened Jul 24, 2026
Model GatewayOGS as a Gateway subtype Open

bug priority::medium

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ut-issl/cosmica#211 · Opened Jul 24, 2026
Repair or quarantine OTC2OTCBinaryCommLinkCalculator Open

bug needs decision priority::high

ut-issl/cosmica#210 · 1 assignee · Opened Jul 24, 2026
Remove smaller duplicated calculator and builder implementations Open

enhancement priority::low

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ut-issl/cosmica#209 · Opened Jul 24, 2026
Make seeded stochastic link calculations reproducible Open

bug priority::high

Difficulty 4/5 3-5 days Newbie friendliness 55/100

ut-issl/cosmica#208 · Opened Jul 24, 2026
Correct visualization units and decompose snapshot drawing Open

bug enhancement priority::low

Difficulty 4/5 3-5 days Newbie friendliness 50/100

ut-issl/cosmica#205 · Opened Jul 24, 2026
Clean up incomplete and duplicate public exports Open

enhancement needs decision priority::medium

Difficulty 5/5 Over a week Newbie friendliness 42/100

ut-issl/cosmica#204 · Opened Jul 24, 2026
Add Rust FFI Open

tools

ut-issl/s2e-core#803 · 1 assignee · Opened Jul 17, 2026
Speed up multi-platform Docker release builds Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/capsula#1136 · Opened Jul 17, 2026
Install Capsula Open

ut-issl/issl-ubuntu-environment-setup#368 · 1 assignee · Opened Jul 11, 2026
setup.sh aborts when re-run Open

ut-issl/issl-ubuntu-environment-setup#339 · 1 assignee · Opened Jul 8, 2026
TAGとSubSystem統一してよさそう Open

ut-issl/github-project-workflows#2 · 1 assignee · Opened Jul 7, 2026
Enable `mypy`'s `strict` option Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ut-issl/cosmica#192 · Opened Jul 7, 2026
Tracking: codebase review follow-ups and recommended implementation order Open

ut-issl/capsula#1093 · 1 assignee · Opened Jul 7, 2026
Cleanup: docs, tests, and CI hygiene (low-severity findings) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/capsula#1090 · Opened Jul 7, 2026
Cleanup: remove dead error variants and unused dependencies Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ut-issl/capsula#1089 · Opened Jul 7, 2026
Cleanup: hook implementation polish (low-severity findings) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/capsula#1088 · Opened Jul 7, 2026
Cleanup: server & client robustness polish (low-severity findings) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ut-issl/capsula#1087 · Opened Jul 7, 2026

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