Below is a collection of headlines, notices, and archived newsletters from the Alaska Satellite Facility’s News & Notes. View the latest newsletters below, and for training notices click here.
Thruster anomaly affects Sentinel-1 orbit control
An anomaly in a thruster used for Sentinel-1 orbit positioning control has resulted in the “orbit tube” diameter increasing from 100 meters to 200 meters maximum. The effect of this action on interferometric baselines has been predicted:
“The preliminary conclusion, supported by InSAR experts, is that the perpendicular baseline, a key InSAR performance indicator, will remain within acceptable limits. Burst synchronization at data-take start is not expected to be impacted, and degradation within data-take and as well as reduction of spectral overlap due to crossing orbits are expected to be limited.”
Detailed information is available from ESA:
New StoryMap Tutorial: Change Detection using OPERA RTC-S1
HyP3 On Demand offers Sentinel-1 SLC burst processing
JPL OPERA Level 2 products available from ASF
NISAR Sample Data Now Available
Sentinel-1 data file size increases
NASA announces that RADARSAT-1 data are Open Data at ASF
Global SAR Mosaic Datasets Available from JAXA
ASF Receives New NASA Contract Award
ASF Vertex Data Search is now available in Spanish!
ASF OpenScienceLab featured this month
JPL uses data from ASF for the ARIA Project
