GRAA NEWSLETTER
P.O. Box 1184, Greenbelt, MD 20768-1184
July 2018 | http://graa.gsfc.nasa.gov | 34th Year of Publication |
IMPORTANT DATES
July 10 | Mark your calendar for the GRAA Luncheon starting at 11:15 a.m. at the Greenbelt American Legion Post #136 at 6900 Greenbelt Road. Reservations are required, so please contact Alberta Moran on her cell phone at 301-910-0177 or via her email address at bertiemae90@gmail.com not later than noon on July 6th. Our featured speaker will be Dr. Lisa Mazzuca, Mission Manager for the NASA Search and Rescue Office of the Flight Projects Directorate. Her presentation will be entitled “NASA Search and Rescue – Using Technology to Save Lives.” |
August 14 | Mark your calendar for the GRAA Luncheon starting at 11:15 a.m. Our speaker will be Dr. Aki Roberge, an Astrophysicist in the Exoplanets & Stellar Astrophysics Laboratory of the Sciences & Exploration Directorate. Her presentation will be entitled “Towards Earth 2.0: Exoplanets and Future Missions.” |
COMMENTS FROM TONY COMBERIATE, GRAA PRESIDENT: Our June luncheon speaker was Michael Springer, NOAA’s GOES-R Assistant System Program Director. His talk, entitled “The GOES-R Series: Earth in High Definition,” described why we need these NOAA/NASA geostationary environmental satellites as well as their amazing capabilities. The GOES spacecraft track weather events and send out alerts and warnings to protect lives and property with a huge economic impact. Over the past decade there have been at least ten weather events with an economic impact over $1B each (there were 16 last year) for a total GOES program cost of $11B. The GOES-R Series of four spacecraft is the latest generation of a legacy that began over 40 years ago. The primary instrument, the Advanced Baseline Imager (ABI) has 16 channels with four times the resolution of earlier imagers and five times the speed. It can image the full disc of the Earth in 5 minutes, or in an alternative mode can provide the same image in 15 minutes while simultaneously mapping the continental US every 5 minutes and zooming in on two 1000 x 1000 km mesoscale areas every minute, to track particular severe weather events. A new instrument, the Global Lightning Mapper (GLM) detects both cloud-to-ground as well as cloud-to-cloud lightning. For space weather, GOES-R contains particle sensors, electron and proton sensors, and two magnetometers. The 6-channel Solar Ultraviolet Imager (SUVI) instrument and the Extreme UV and X-ray Irradiance Sensor (EXIS) instruments track the Sun’s activity and irradiance. The spacecraft also supports search and rescue (SARSAT), a Data Collection System for relaying in-situ sensor data from around the country and the GOES-R Rebroadcast of data for public use.
GOES-R, launched November 19, 2016, is operating as GOES-East at 75 degrees W and GOES-S launched March 1st of this year is still in checkout. GOES 13, 14, and 15 are still operational. GOES-T is fully integrated and will go into environmental testing this fall for a 2020 launch and GOES-U is just beginning the build cycle and will be launched in 2024. Operations, command, and control are performed at the NOAA Satellite Operations Facility in Suitland, MD. A sixty-fold increase in data rate over earlier GOES spacecraft is transmitted to and from three x-band 16.4 meter antennas at the Wallops station in VA, with a back-up station in Fairmont, WV.
Mike showed several incredible videos of GOES-16’s images of Hurricane Harvey, which used mesoscale observations to provide an update of the hurricane as it threatened the Houston, TX, area. GOES mesoscale images of Puerto Rico were used extensively last year when Hurricane Maria wiped out the island’s weather radars, again providing updated images every 30 seconds. Our audience also viewed videos of GLM data overlaying the nation’s airplane traffic displays which showed how the planes used that data to avoid concentrated storm cells. We also saw videos of solar flares from the SUVI instrument, ABI images of recent fires throughout the US, and the four consecutive Nor’easter storms that hit the East Coast earlier this year. Mike’s talk included a very amusing video cartoon entitled, “So You Want to Build a Weather Satellite.”
TREASURER'S REPORT: Treasurer Jackie Gasch received tax-deductible donations from: Dorothy Burkholder, Ronald Browning, Frank Carr (in memory of John Boeckel), John Hraster, David Manges, Karl Peters, and William Tallant.
GSFC’S TAE KWON DO CLUB CELEBRATES 50th ANNIVERSARY THIS YEAR: According to Mike Comberiate, who is more familiarly known in NASA circles as NASAMIKE, has announced that a special event is being planned for October. Mike suggests all former members of GSFC’s TAE KWON DO Club keep this in mind and email him at nasamike@nasamike.com for more information.
THOUGHT FOR JULY: When we were children, we more than likely thought naptime was a form of dreaded punishment from our parents. As we matured, however, we logically started to consider it more like a mini-vacation!
REMEMBERING OUR FORMER COLLEAGUES: