Tag: SAR

  • ISRO launches PSLV with Singaporean satellites

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    The Indian Space Research Organisation used its PSLV rocket to deploy a pair of Singaporean satellites Saturday, in a commercial launch contracted by its subsidiary NewSpace India Limited. The PSLV-CA rocket lifted off at 08:49 UTC (2:19 p.m. local time) from the Satish Dhawan Space Centre. Saturday’s launch carried the TeLEOS-2 radar-imaging satellite, to be…

  • What is SAR?

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    Synthetic Aperture Radar (SAR) is a specific satellite that can capture imagery in all weather conditions, day or night. SAR sends a microwave radar signal to the earth’s surface to detect physical properties. Depending on the ground feature’s properties, some or all of the signal will bounce back up to the sensor creating an image…

  • What Is Tasking?

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    Tasking is the act of “ordering” new satellite imagery from a specific satellite. To task a satellite, coordinates of an area of interest (AOI), time frame and interval are sent to the satellite provider. The satellite will capture an image of that area during the specified time period, weather permitting. The “tasked” image is then…

  • Falcon 9 launches Germany’s SARah-1 from Vandenberg

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    Germany’s SARah-1 military radar Earth observation satellite launched aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base on Saturday. The launch, which was the 25th flight of the Falcon 9 this year, occurred at 7:19 AM PDT (14:19 UTC) – less than 24 hours after Friday’s Starlink 4-19 launch from the Kennedy Space…

  • Studying Volcanoes and Earthquakes with Synthetic Aperture Radar

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    For over three decades, Synthetic aperture radar (SAR) has been a popular choice for Earth remote sensing. With its high resolution and day-and-night/weather-agnostic monitoring, SAR is utilized in an array of applications – ranging from geoscience and climate research to environmental and Earth system observation, from 2-D and 3-D mapping to 4-D mapping (involving the…

  • What’s the difference between multispectral, hyperspectral, and SAR?

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    Multispectral and hyperspectral satellites A sensor’s spatial resolution, or how fine the pixels on the ground will be, is inversely related to its spectral resolution or how well it can discriminate between spectral bands. Because of this, satellites that record data along multiple spectral bands (hyperspectral) do not have the same spatial resolution as satellites…

  • Rocket Lab’s The Owl’s Night Continues makes first launch from LC-1B at Mahia

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    Rocket Lab has conducted its first launch from the second launch pad at its spaceport in Mahia, New Zealand on Tuesday, in the second of four planned missions for the Japanese earth observation company Synspective. Tuesday’s mission, The Owl’s Night Continues, is a follow-on to the December 2020 launch named The Owl’s Night Begins, which…

  • China’s Long March 4C launches Ludi Tance radar imaging satellite

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    China’s Long March 4C (Chang Zheng 4C) made its fortieth launch on Saturday, carrying the second Ludi Tance radar-imaging satellite. Liftoff from the Jiuquan Satellite Launch Center took place at 23:44 UTC (07:44 local time on Sunday), with the satellite being deployed into a sun-synchronous orbit shortly afterward. Saturday’s launch of the Ludi Tance-1 01B satellite,…