Gizmodo posted about how NASA’a Landsat 8 satellite uses the moon to calibrate.
The full moon—like yesterday’s glorious event—is a great show for us here on Earth. But for NASA, it also plays a critical role in keeping its Landsat 8 satellite working properly. How? By using the moon exactly like a photographer uses a light meter.
Landsat 8 is all about Earth: It’s designed to image our planet for use by the government and us citizens. But once in a full moon, this little satellite pulls its gaze from its main priority and turns in a different direction: The moon. Because the full moon is so bright, it provides a chance for NASA’s engineers to make sure Landsat is reading Earth’s more patchy brightness levels clearly.
Because the moon has no atmosphere and a surface that’s uniform, it’s the most stable place for NASA to check Landsat against.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — “Finally — some data on whether crowdfunding is a good investment or not”
Wearables — Sample code is your new best friend
Electronics — Meaningful gains
No comments yet.
Sorry, the comment form is closed at this time.