---
title: "SDO2019-04"
description: "[SDO2019-04](https://www.freeflight.org/wp-content/uploads/2022/12/SDO2019-04.pdf)[Download](https://www.freeflight.org/wp-content/uploads/2022/12/SDO2019-04.pdf)"
url: "https://www.freeflight.org/betterdocs/sdo2019-04/"
updated: "2022-12-27"
category: Newsletters / San Diego Orbiteers
---

# SDO2019-04

[SDO2019-04](https://www.freeflight.org/wp-content/uploads/2022/12/SDO2019-04.pdf)[Download](https://www.freeflight.org/wp-content/uploads/2022/12/SDO2019-04.pdf)