Remembering Virginia Norwood, the ‘mom’ of NASA’s Landsat program

Her profession lastly progressed after touchdown jobs with the US Military Sign Corps Laboratories (the place she designed a radar reflector for climate balloons) and Sylvania Digital Protection Labs (the place she arrange the corporate’s first antenna lab). Norwood started working within the Nineteen Fifties as one among a small group of ladies at Hughes Plane Firm, the place she gained a repute as a resourceful problem-solver. “She stated, ‘I used to be type of generally known as the one who may remedy unattainable issues,’” her daughter, Naomi Norwood, instructed NASA. “So folks would convey issues to her, even items of different initiatives.”

Within the late Sixties, the director of the Geological Survey needed to take pictures of the Earth from house to assist handle land sources; partnering with NASA, a plan was hatched to ship satellites into house. Then engaged on a sophisticated design staff in Hughes’ house and communications division, Norwood shaped the concept would outline her legacy. She gathered suggestions from agriculture, meteorology and geology specialists to develop a scanner to document completely different gentle and vitality spectra. Though it used present know-how made for (lower-altitude) agricultural observations, she tailored the tech to satisfy the Geological Survey’s and NASA’s targets.

Nevertheless, she confronted quite a few obstacles in securing a spot for her Multispectral Scanner System (MSS) on the launch satellite tv for pc. It was already hauling an unlimited three-camera system developed by RCA utilizing tv tube know-how, which the companies seen as the first imaging supply. To get the MSS onboard, Norwood was tasked with scaling again its measurement to not more than 100 lbs, a major downsizing; the RCA system took up many of the satellite tv for pc’s 4,000 lb. payload.

She diminished the system to recording solely 4 vitality bands (down from its unique seven) to make sure it might make the journey as a secondary measurement system. The satellite tv for pc launched on July twenty third, 1972, and the MSS captured its first pictures — of Oklahoma’s Ouachita Mountains — two days later. The outcomes exceeded all expectations, forcing a fast reevaluation of the satellite tv for pc payload’s hierarchy. Norwood’s system carried out higher and was extra dependable than the clunky RCA undertaking, which brought on energy surges and needed to be shut down for good two weeks into the mission.

Landsat shortly grew to become the de facto technique of surveying the Earth’s floor. Norwood continued to enhance the system, main the event of Landsat 2, 3, 4 and 5. Landsat 8 and 9, the present variations monitoring the results of local weather change as we speak, are nonetheless based mostly on her preliminary idea. Her different initiatives included main the microwave group in Hughes Plane’s missile lab and designing the ground-control communications tools for NASA’s Surveyor lunar lander.

She reportedly had no challenge with the “the mom of Landsat” moniker her friends gave her. “Sure, I prefer it, and it’s apt,” she stated. “I created it, I birthed it, and I fought for it.”

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