# 📐  L2 Spec — Satellite Orbit Determination — Nominal + Mismatch Specs

**ID:** `L2-467-001` · **Status:** ⊙ Testnet (genesis catalog)
**Parents:** ⬆ Principle [`L1-467`](/artifact/l1/L1-467)

> **🎯 Tolerance (ε):** expression
> **⚖ Difficulty score:** 0.3 · **Delta tier:** 5
> **⛓ On-chain block:** 41555301

---

## 1. Domain Ω

**Type:** `range`

| Parameter | Unit | Range |
|---|---|---|
| Altitude km | km | 200 – 36000 |
| N observations | — | 50 – 10000 |
| Arc length days | — | 0.5 – 10.0 |
| Drag cd uncertainty | — | 0.01 – 0.5 |

## 2. Tolerance (ε)

**Type:** `fn`

```
0.05 + 0.05 * (drag_Cd_uncertainty / 0.1) ** 0.5
```

## 3. Difficulty

| Property | Value |
|---|---|
| Difficulty score | 0.3 |
| Delta tier | 5 |

## 4. Fingerprint

`3e1d352e8dda35f0070acdfbcfae9fdd92fb42d7c1575470bf60cf5114343423`

## 5. On-chain Registration

- **Chain hash:** `0x9bba88e30ecfbf7bcdc0a2326bac5e1fee7475e824afed311798ff3b58298689`
- **Chain tx hash:** `0x5430f62a0ce76232a1e920896c13effad6d87d7e383b70784eb2eb663430ace4`
- **Chain block:** `41555301`

---

## File Mapping

This bundle consists of: `L2-467-001.md`, `L2-467-001.json`.

| File | Role | How to regenerate |
|------|------|-------------------|
| `L2-467-001.md` | Source of truth — edit this | Human or LLM |
| `L2-467-001.json` | Structured metadata for the registry | LLM regenerates from the sections above |

**Prompt for your LLM after editing this Markdown:**

> Read the attached Markdown. Regenerate the sibling `.json` so every field matches.
> Preserve the schema documented in the rows above.
> Output each file in its own fenced code block tagged with the filename.
> Output only the JSON object.

_This Markdown was auto-synthesized from the catalog row for `L2-467-001`._
_Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._