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"Top space experts from around the world have collaborated to produce this comprehensive, authoritative, and clearly illustrated reference guide to the fast growing, multi-billion dollar field of satellite applications and space communications. This handbook, done under the auspices of the International Space University based in France, addresses not only system technologies but also examines market dynamics, technical standards and regulatory constraints. The handbook is a completely multi-disciplinary reference book that covers, in an in-depth fashion, the fields of satellite telecommunications, Earth observation, remote sensing, satellite navigation, geographical information systems, and geosynchronous meteorological systems. It covers current practices and designs as well as advanced concepts and future systems. It provides a comparative analysis of the common technologies and design elements for satellite application bus structures, thermal controls, power systems, stabilization techniques, telemetry, command and control (TTC), and orbital configurations. These common aspects are addressed in an integrated fashion to explain how all these space systems share similar design features, but also have quite specialized application packages to carry out their various missions. No other reference in print today provides such a comprehensive and in-depth guide to all forms of application satellites, including small sats as used by countries just beginning space application programs."

"Cuaca merupakan sebuah kondisi alam yang terjadi di suatu tempat dan berubah-ubah dalam waktu yang relatif singkat, sehingga para ahli meteorologi harus dapat memperoleh data cuaca setiap waktunya secara real-time. Solusi yang sudah diterapkan adalah weather station konvensional yang dapat memberikan informasi cuaca secara otomatis, namun memerlukan infrastruktur yang kokoh karena koneksi antar stasiun menggunakan kabel, yang berakibat pada biaya yang tinggi dan fleksibilitas sistem yang rendah. Penelitian ini memberikan informasi cuaca secara otomatis dengan membuat sebuah weather station berbasis mikrokontroler yang dapat melakukan komunikasi melalui Internet. Sistem yang dibangun memanfaatkan web-service OpenWeatherMap sebagai sumber data cuaca, web-service ThingSpeak sebagai media penyajian dan analisa data cuaca, serta modul GPS sebagai penanda lokasinya. Sistem juga akan menggunakan sensor suhu dan kelembapan untuk mendapatkan data real-time. Sistem akan memberikan data cuaca seperti: kecepatan angin, suhu, kelembapan, tekanan udara dan curah hujan beserta data lokasi dari data-data tersebut seperti: garis lintang, garis bujur dan ketinggian. Tingkat akurasi rata-rata sistem dalam membaca nilai suhu sangat baik, yaitu 98,5%. Sistem memiliki runtime minimum sebesar 72 jam. Perubahan konfigurasi periode update memiliki pengaruh langsung terhadap performa sistem sehingga didapatkan konfigurasi yang paling baik adalah 30 detik.

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Weather is a natural condition that occurs and change in a relatively short time, demanding meteorologists to be able to obtain weather data in real-time. The solution that has been implemented is a conventional weather station that can provide weather information automatically, which requires a solid infrastructure for the connection between the station using the cable, resulting in high cost and low flexibility system.

This study provides weather information automatically by making a microcontroller based weather station that is able to communicate over the internet. The system utilizes OpenWeatherMap and ThingSpeak web-service as a source of weather data and a tool for weather data presentation and analysis, respectively, with a GPS module to get its location data. The system will also be using a DHT11 sensor to obtain real-time weather data. This system will provide weather data such as wind speed, temperature, humidity, air pressure and rainfall along with the location data. The overall temperature measurement accuracy of the system is 98,5%, which is good. The system has a minimum runtime of 72 hours. Configuring system to a different update period has a direct effect to the performance of the system. The most suitable update period configuration for the system is 30 seconds."