> ## Documentation Index
> Fetch the complete documentation index at: https://docs.valar.space/llms.txt
> Use this file to discover all available pages before exploring further.

# TLE Generation

> Generate Two-Line Element sets from state vectors

> For the complete documentation index, see [llms.txt](/llms.txt).

TLEs (Two-Line Element sets) are automatically generated on-demand from your latest state vector. Access them through the cheatsheet component in the application header.

## Accessing TLEs

1. Open the **cheatsheet** from the application header
2. The TLE is generated automatically when the cheatsheet opens
3. View the raw TLE lines
4. Click the **copy button** next to the TLE to copy it to your clipboard

## How It Works

| Aspect                | Behavior                                                               |
| --------------------- | ---------------------------------------------------------------------- |
| **State Vector Used** | Always the latest state vector (most recent epoch within last 30 days) |
| **Selection**         | Automatic (users cannot manually select which state vector to use)     |
| **Refresh**           | Regenerated fresh each time the cheatsheet opens (not cached)          |
| **Spacecraft**        | Uses the currently selected spacecraft                                 |

<Note>
  The TLE reflects your most recent state vector data. If you need a TLE from a specific epoch, ensure that state vector is your latest before opening the cheatsheet.
</Note>

## TLE Format

The generated TLE follows the standard NORAD two-line format:

```
1 NNNNNC NNNNNAAA NNNNN.NNNNNNNN +.NNNNNNNN +NNNNN-N +NNNNN-N N NNNNN
2 NNNNN NNN.NNNN NNN.NNNN NNNNNNN NNN.NNNN NNN.NNNN NN.NNNNNNNNNNNNNN
```

For details on the TLE format and field definitions, see the [TLE Format](/file-formats/tle) documentation.

## Related Pages

* [State Vectors](/features/state-vectors): Manage orbit solutions and state vectors
* [TLE Format](/file-formats/tle): TLE file format specification
* [Generate OEM](/features/ephemeris-generation): Generate ephemeris files