# jnz/INSLIB

> A portable C library for 3D navigation state estimation: a set of Kalman filters fusing IMU data with GNSS, barometer, magnetometer and other sources. Targets embedded systems, drones, robots and post-processing of recorded flights.

- Magnitude: 1.0 out of 10 — Steady
- Stars: 560 total · +0 stars on 2026-09-25 (UTC), ≈ 3 by evening
- Star trust: star growth looks organic
- Category: Hardware, IoT & robotics · Language: C · License: AGPL-3.0 · Created: 2026-09-08 · Last push: 2026-09-20
- GitHub: https://github.com/jnz/INSLIB · Page: https://gitnova.dev/en/r/jnz/INSLIB

## Useful for

- Build firmware for a microcontroller estimating attitude and position from IMU and GNSS
- Post-process recorded CSV flight logs with replay.py and plot the trajectory
- Estimate a GNSS receiver's latency from IMU and barometer data for a given setup

## Why it’s here

- 0 stars so far today, about 3 expected by the end of the day.
- The repository is 17 days old and already has 560 stars.

## Star trust

Star growth looks organic.

Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer.

## Numbers

- Forks: 85
- Issues and pull requests: 0
- Watchers: 20
- Average over the last week: 8 per day
- Usual pace: 26 per day
- Latest release: v1.1.0 (2026-09-20)

## Stars per day, last 30 days (oldest → newest, today is partial)

2026-09-30 … 2026-10-29: None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None

## Magnitude by day, last 13 days

09-13 2.7, 09-14 3.6, 09-15 3.7, 09-16 2.2, 09-17 1.7, 09-18 1.6, 09-19 1.6, 09-20 1.8, 09-21 1.7, 09-22 1.6, 09-23 1.4, 09-24 1.2, 09-25 1.0

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Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score.
Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast.
Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself.
Data as of 2026-09-25 00:05 UTC, updated every 30 minutes.