# Technical Specs

Performance

The LR1 Payload's high pixel count allows you to cover a large amount of area quickly at low resolution, or collect very high-resolution imagery at lower altitudes. Approximate GSD, coverage per flight, and expected altitude are listed below for reference. This is based on a 70% forward and 65% side overlap, single pass (no crosshatch).

<table><thead><tr><th>GSD (cm)</th><th width="173.3907504828339">Coverage (acres per flight, single pass)</th><th width="150">Speed (m/s)</th><th>Altitude (m)</th></tr></thead><tbody><tr><td>0.5</td><td>62</td><td>4.75</td><td>31</td></tr><tr><td>1</td><td>98</td><td>9.5</td><td>63</td></tr><tr><td>1.9 (capped by 400ft altitude)</td><td>240</td><td>15</td><td>121</td></tr></tbody></table>

A single Astro flight with the LR1 Payload is typically 25-29 minutes. The exact time depends on the survey area's geometry, the number of turns required, and the flight speed, as well as environmental factors such as wind speed and direction. Note that the time presented in AMC is an estimate, and not adding return or transit waypoints may affect its calculation. A good rule of thumb is to aim for an AMC-calculated flight duration of <23 minutes. This should allow the flight to complete and return before hitting the battery reserve.

## Camera Body

Sony ILX-LR1

<table><thead><tr><th width="479">Parameter</th><th>Value</th></tr></thead><tbody><tr><td>Sensor Size (pixels)</td><td>9504 x 6336</td></tr><tr><td>Sensor Size (mm)</td><td>35.7 x 23.9</td></tr><tr><td>Pixel Size (μm)</td><td>3.76</td></tr></tbody></table>

### Weight

Astro's maximum payload weight is 1500 grams.

<table><thead><tr><th width="479">Parameter</th><th>Weight (g)</th></tr></thead><tbody><tr><td>Smart Dovetail mount</td><td>95</td></tr><tr><td>Weight with default lens (Sigma 24mm)</td><td>970</td></tr><tr><td>Weight with default lens and mount</td><td>1065</td></tr><tr><td>Remaining weight for accessories</td><td>435</td></tr></tbody></table>

## Ingress

The LR1 Payload is not IP ingress rated, as the ILX-LR1 camera itself is not IP rated. We do not recommend flying in rain or very dusty enviroments.

## Gimbal

<table><thead><tr><th width="479">Parameter</th><th>Value</th></tr></thead><tbody><tr><td>Minimum gimbal angle</td><td>-90° (straight down)</td></tr><tr><td>Maximum gimbal angle</td><td>+30°</td></tr></tbody></table>

## Lenses

<table><thead><tr><th>Focal Length (mm)</th><th>Model</th><th width="120">Weight (g)</th><th width="150">Compatability</th></tr></thead><tbody><tr><td>24 (ships with)</td><td><a href="https://www.sigma-global.com/en/lenses/c021_24_35/">Sigma 404965</a></td><td>228</td><td>Supported</td></tr><tr><td>35</td><td><a href="https://electronics.sony.com/imaging/lenses/full-frame-e-mount/p/sel35f28z">Sony SEL35F28Z</a></td><td>165</td><td>Supported</td></tr><tr><td>50</td><td><a href="https://electronics.sony.com/imaging/lenses/full-frame-e-mount/p/sel50f18f-2">Sony SEL50F18F/2</a></td><td>187</td><td>Supported</td></tr><tr><td>75</td><td><a href="https://www.samyanglens.com/en/product/product-view.php?seq=470">Samyang AF 75mm F1.8 FE</a></td><td>230</td><td>Supported</td></tr></tbody></table>

These are the lenses we have tested with, but other lenses and additional modules can work as well. Learn more about configuring the gimbal here:

{% content-ref url="/pages/CqWbLs2YZYBEVL47oxHV" %}
[LR1 Lenses and Expansion](/ecosystem/payloads/lr1-payload/lr1-lenses-and-expansion.md)
{% endcontent-ref %}

Lens selection in AMC only matters for mission planning calculations (overlap, photo trigger, etc) and for infinity focus to work properly.

If you plan a mission with a non-standard lens, make sure that the correct lens is selected in the Survey section of the Plan screen. If your lens isn't on the dropdown, you can enter the details manually by selecting Custom Camera instead of a specific lens.

When changing lenses, select your lens from the Focal Length dropdown in Camera Settings found in the camera settings.


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