README.md

---
license: cc-by-4.0
language:
  - en
tags:
  - spacecraft
  - satellite
  - cubesat
  - smallsat
  - engineering
  - components
  - datasheets
  - aerospace
pretty_name: NewSpace Market MRD — machine-readable spacecraft component specifications
size_categories:
  - 10K<n<100K
task_categories:
  - table-question-answering
  - feature-extraction
configs:
  - config_name: values
    data_files: mrd-values.csv
  - config_name: products
    data_files: mrd-products.csv
  - config_name: properties
    data_files: mrd-properties.csv
---

# NewSpace Market MRD

Typed, datasheet-sourced specifications for **2,486 spacecraft flight hardware products
across 24 categories** — reaction wheels, star trackers, propulsion, radios, antennas,
structures, ground stations and more — with **19,011 values, each citing the vendor
datasheet page it came from**.

The dataset exists because component selection is a task where a language model must not
improvise: a wheel that cannot take a 12 V bus is not a "close enough" answer. Three rules
make the data safe to compute on.

* **Nothing is guessed.** A missing property means the vendor does not publish it. The
  record is absent rather than filled with a typical value.
* **Conditions are kept apart.** Idle, steady-state and peak power are separate rows, each
  with its measurement condition. They are never averaged into one number.
* **Every value is traceable.** Source file and page, plus a confidence level: `L0`
  machine-extracted, `L1` verified by a human against the vendor datasheet.

## Files

| File | One row is | Rows |
|------|------------|------|
| `mrd-values.csv` | one measured value | 19,011 |
| `mrd-products.csv` | one product | 2,486 |
| `mrd-properties.csv` | one property in the dictionary | 111 |
| `mrd-full.json` | everything, nested by product | — |

### Columns of `mrd-values.csv`

| Column | Meaning |
|--------|---------|
| `product_id`, `product_name`, `category` | which item the value belongs to |
| `prop` | property key; see `mrd-properties.csv` for its label and canonical unit |
| `num`, `num_max` | the figure; both are filled when the vendor published a range |
| `text` | for non-numeric properties: interface, band, material, heritage |
| `unit` | canonical unit, converted **by code** (kg→g, dBm→W, psi→bar, tf→mN) |
| `bound` | `min`, `typical`, `max`, `range`, `nominal` — which end of the spec this is |
| `condition` | measurement condition as printed, e.g. "at 4200 rpm", "Ka-band" |
| `source` | `datasheet <file> p.N`, `vendor product page`, or `product description` |
| `confidence` | `L0` machine-extracted · `L1` human-verified |

## Categories

`reaction-wheels` · `star-trackers` · `obc-computers` · `batteries` · `radios` ·
`solar-panels` · `propulsion` · `sun-sensors` · `magnetometers` · `magnetorquers` ·
`imus-gyros` · `gnss-receivers` · `eps` · `deployers` · `thermal` · `antennas` ·
`sdr-modems` · `cameras` · `structures` · `ground-stations` · `sadm` · `tanks-valves` ·
`separation-systems` · `pointing-mechanisms`

## Live data and tools

The snapshot here is dated; the layer grows weekly. For current data:

* **Reverse search** — pass requirements, get candidates grouped A (meets all) / B (fails a
  named requirement, both figures quoted) / C (data missing, fields named):
  `https://newspacemarket.com/mrd-connect/match?category=reaction-wheels&momentum_min=0.2&bus_v=12`
* **Full category dump** — `https://newspacemarket.com/mrd-connect/specs?category=star-trackers`
* **MCP server** for AI assistants — `https://newspacemarket.com/mrd-connect/mcp`
  (also in the official MCP registry as `io.github.newspacemarket-com/mrd`)
* **OpenAPI 3.1** — `https://newspacemarket.com/mrd-connect/openapi.json`
* Code, schema and examples — <https://github.com/newspacemarket-com/mrd>

## How it was built

Values are extracted from vendor datasheets (text, and page images for scanned documents),
from vendor product pages and from product descriptions — the `source` column says which.
Unit conversion is done in code, not by a model. A validation pass rejects any figure whose
unit does not match the property, and an outlier scan flags values far from the category
median for human review.

## Limitations

Coverage is not exhaustive: where a vendor publishes nothing machine-readable, the product
is not here. Most rows are `L0` — machine-extracted and not yet checked by a person. Values
are provided as-is; verify against the vendor datasheet before committing to a design.

## Licence and attribution

CC BY 4.0. Attribution: **NewSpace Market** — <https://newspacemarket.com>