This week, the Webb team has been working on the fourth stage of mirror alignment, called Coarse Phasing, which measures and corrects smaller height differences between the mirror segments. In the meantime this past week, Webb's Near-Infrared Spectrograph (NIRSpec) team successfully finished the check-out and initial characterization of three crucial onboard mechanisms. Today, members of …
Webb continues on its path to becoming a focused observatory. The team has successfully worked through the second and third out of seven total phases of mirror alignment. With the completion of these phases, called Segment Alignment and Image Stacking, the team will now begin making smaller adjustments to the positions of Webb's mirrors. After …
This week, as the Webb team continues to make progress in aligning the telescope, other successful activities include the calibration of the NIRISS filter wheel and pupil wheel tuning for NIRCam. There are hundreds of activities like these planned during the commissioning process, and each is as important as the next to ensure that Webb …
The Webb team continues to make progress in aligning the observatory's mirrors. Engineers have completed the first stage in this process, called "Segment Image Identification." The resulting image shows that the team has moved each of Webb's 18 primary mirror segments to bring 18 unfocused copies of a single star into a planned hexagonal formation. …
After starting the mirror alignment with Webb's first detection of starlight in the Near-Infrared Camera (NIRCam), the telescope team is hard at work on the next steps for commissioning the telescope. To make more progress, the team needs to use another instrument, the Fine Guidance Sensor, to lock onto a guide star and keep the …
Lee esta nota en español aquí. The James Webb Space Telescope is nearing completion of the first phase of the months-long process of aligning the observatory's primary mirror using the Near Infrared Camera (NIRCam) instrument. The team's challenge was twofold: confirm that NIRCam was ready to collect light from celestial objects, and then identify starlight from …
While we have started the long process of aligning the telescope mirrors, almost all of the components on Webb's cold side are still continuing to cool. Webb's giant sunshield keeps the telescope and cameras out of both direct sunlight and sunlight that is reflected from Earth and the Moon. Everything on the cold side of …
This week, the three-month process of aligning the telescope began – and over the last day, Webb team members saw the first photons of starlight that traveled through the entire telescope and were detected by the Near Infrared Camera (NIRCam) instrument. This milestone marks the first of many steps to capture images that are at …
Following Webb's arrival at its orbital destination around Lagrange Point 2 (L2) on Jan. 24, the mission operations team began working its way through a critical series of steps: powering on all the science instruments, turning off heaters to begin a long cooldown process, and ultimately capturing the first photons on Webb's primary camera to …
The big news for Webb this week was the final insertion into orbit around the second Lagrange point. The team also turned on the High-Gain Antenna, enabling downlink to Earth through the Deep Space Network using the Ka radio band. The Ka-band provides a much higher data rate than the S-band that Webb has been …
