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Hi Everyone, This past week has been smooth sailing as we tested both of our instruments, the radar and the radiometer. The radar’s high power transmitter was turned on as the spacecraft was flying over the North Atlantic and then over Greenland. The telemetry data looked great and the signals received clearly showed the transition from ocean to land (yay!). There were some biases with the data that still need to be worked out, however everything is working and we will have a better sense of the quality of the radar data once the antenna starts spinning. During this past week we also...

Узнать больше О SMAPPING with Erika: Testing the Instruments »

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Fresh off the recent successful deployment of its 20-foot (6-meter) reflector antenna and associated boom arm, NASA's new Soil Moisture Active Passive (SMAP) observatory has successfully completed a two-day test of its science instruments. The observatory's radar and radiometer instruments were successfully operated for the first time with SMAP's antenna in a non-spinning mode on Feb. 27 and 28. The test was a key step in preparation for the planned spin-up of SMAP's antenna to approximately 15 revolutions per minute in late March. The spin-up will be performed in a two-step process after...

Узнать больше О NASA's Soil Moisture Mapper Takes First 'SMAPshots' »

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WOW! If you are not amazed by this GPM Data Visualization loop, you should be! (www.youtube.com/embed/ILNC7IdyWVU?enablejsapi=1&rel=0) Earth SySTEM is an approach to STEM Education that utilizes the current and future technological infrastructure of satellite imagery, remote sensing, and computer visualizations, and data archives in the study of Earth as a System.   So the question becomes, besides being pretty pictures, what else can students do with these types of satellite images, remote sensing and computer visualizations? There are many investigations that you can engage...

Узнать больше О First GPM Satellite Visualizations Support Earth SySTEM »

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Hi Everyone, The major milestone this past week was the deployment of the reflector antenna/boom assembly (RBA), which refers to a 5-meter (~16 foot) long boom that holds a 6-meter (~20 foot) diameter antenna at the end of it. For launch the RBA was folded against the spacecraft to fit within the launch vehicle fairing. The boom and antenna together weigh 58 kilograms (127 pounds). Yes, super light for something that size. The boom is a carbon composite structure, made of multiple layers of carbon fiber cloth that are impregnated with a special resin, then baked to create a structure...

Узнать больше О SMAPPING with Erika: Antenna and Boom Deployment »

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By Kristen Weaver, posted 02.03.15 15:30

Last Friday, February 27th, was the one-year anniversary of the launch of the Global Precipitation Measurement Mission Core Observatory, and coinciding with that event, released its first global map of rainfall and snowfall, covering the period from April 2014 to September 2014. The data map combines measurements from 12 satellites and the GPM Core Observatory, which serves to unify the data from all the satellites, like the lead violin in an orchestra tuning the rest of the instruments.  The result is NASA's Integrated Multi-satellite Retrievals for GPM data product, called IMERG,...

Узнать больше О GPM's First Anniversary »

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