Tech
NASA Moves Towards Sunscreen Webb Space Telescope Deployment
Engineers activate the file James Webb Space Telescope Upgrade your power system to better cope with the real-world space environment, and chill the engines a little more than expected before proceeding with the final deployment of the observatory’s critical solar canopy on Monday.
Squeezing five thin layers of the sun canopy, gently pulling them together with motor-driven cables running through multiple coils, will likely take three days, said Bill Ochs, NASA’s project manager. But by Monday evening, three of the five layers were already in shape, and the last two were waiting for a puff on Tuesday.
a spread the cup For a long time it was considered one of the More difficult obstaclesbut “I don’t expect drama,” Ohs said.
NASA
“I always tell people that the best cure for surgery is boredom,” he said. “And that’s what we hope for the next three days. I think we can all breathe a sigh of relief when we reach stress level 5. But I don’t expect drama. “
Internet and Most expensive science probe Was always released With a lot of fanfare on top of the European Space Agency’s Ariane 5 rocket on Christmas Day, it enters orbit around the Sun a million miles from Earth.
Designed to capture infrared light from the first stars and galaxies after the Big Bang, Webb is very complex. But in addition to the small growth issues common to all new spacecraft, Ochs said the $ 10 billion observatory is undergoing initial activation as planned.
“We’re still in the process of meeting them with a telescope,” he told reporters on a morning teleconference. “All satellites will always be slightly different in orbit from Earth, and it takes time to find out and understand their characteristics.
“This is a large part of what we did last week and we are still making great progress on our commissioning schedule.”
The telescope’s solar array was deployed at scheduled times after the spacewalk, two trajectory correction beams were performed, the high gain antenna was not stretched out and pointed towards Earth, and the two platforms holding the solar dome membranes were rotated in this position.
A retractable tower raised Webb’s main mirror and instruments three feet above the still folded sunscreen, providing extra space and insulation from the heat generated by the spacecraft’s electronics. Then a “pulse damper” was activated to neutralize the small forces transmitted by the solar wind.
After removing the protective covers, two overlapping arms appeared. Extension from solar roof platforms On New Years Eve, the Kapton membranes returned to their kite shape.
“Obviously, the levels of tension are the next big step we are taking,” Ochs said. “By the time we end tensions in all five grades, we will have retired somewhere between 70 and 75 percent of the 344 individual points of failure that were discussed before the appointment.”
He was referring to the number of non-redundant machines and mechanisms required for countless Webb deployments that have no backups if something goes wrong. They should all just work.
NASA
Sunscreen is needed to block the heat from the sun, and the 21.3-foot-wide Webb main mirror and instruments have cooled to nearly minus 400 degrees, cooling enough to register the faint infrared light of early stars and galaxies that ignites after Big Bright.
To reach extremely low temperatures, each layer must be stretched using motorized cables that run through several rolls, a process that also lifts and separates the films to allow thermal gaps to dissipate.
That latest stress was taken off over the weekend to give engineers a break from a busy first week of deployment and then evaluate the performance of Webb’s five-panel solar panel and its battery system.
Ultimately, factory settings governing solar panel production needed to be adjusted to reflect the actual temperatures Webb experiences in space. At the same time, the telescope was reoriented slightly to cool the six motors needed to tighten the visor layers.
“Everything is fine and working fine now,” said Amy Lo, a systems engineer at Webb for a major contractor Northrop Grumman. “The observatory was never in danger and we never really needed electricity. … Rebalancing the matrix gives us a certain margin (against) the expected increase in energy that we will need in the future. “
As for the engines, Luo said they never went out of range, they were just a little warmer than ideal. And for safety reasons, Webb was rerouted on Sunday to improve cooling, and “we now have a lot of temperature headroom.”
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NASA Lander InSight He has delivered what may be his last message from Mars as he embarks on a historic mission to uncover the secrets of the Red Planet’s interior.
In November, the space agency warned that the probe could be running out of time as dust continued to condense and stifle InSight’s power.
“Spacecraft power generation continues to decline as windblown dust accumulates on solar panels,” NASA said in a statement. Update November 2. “The end is expected to come in the coming weeks.”
message shared NASA The InSight Twitter account tweeted on Monday: “My power is very low so this might be the last photo I can upload. Don’t worry about me: my time here has been productive and uneventful. If I can keep talking to my mission team, I will—but I will.” Subscribe here soon. Thank you for staying with me.”
My power is very low, so this might be the last photo I can upload. But don’t worry about me: my time here has been productive and uneventful. If I can keep talking to my mission team, I will, but I’ll sign here soon. Thank you for staying with me. pic.twitter.com/wkYKww15kQ
— NASA InSight (@NASAInSight) December 19, 2022
A geologist robot armed with a hammer and a seismograph first reached the barren expanse of Elysium Planitia in November 2018.
Since then, she has carried out geological excavations, taking the first measurements of earthquakes with a high-tech seismometer placed right on the surface of Mars.
Last month, the solar-powered car released an update to remind us of its time in space.
“I was lucky to live on two planets. Four years ago I made it safely to the second one, much to the joy of my family at first. Thanks to my team for taking me on this journey of discovery. I hope I can be proud of you.”
According to the published mission, Insight has measured more than 1,300 seismic events since it was published, and more than 50 of them had signals clear enough for the team to extract information about their location on Mars. Results.
The probe’s data also provided detailed information about Mars’ interior, liquid core, surprisingly variable remnants beneath the surface of an extinct magnetic field, climate and seismic activity.
old for Its launch in 2018NASA Chief Scientist Jim Green said the mission was “fundamental to understanding the origins of our solar system and how it became what it is today.”
NASA will not declare the mission complete until Insight confirms the arrival of two spacecraft orbiting Mars that are relaying their information back to Earth.
In 2018, the veteran rover announced the capabilities end of his 15 year stay Sending an incomplete photo of the Valley of Perseverance.
A severe dust storm darkened the sky around the solar-powered rover, shattering the sun and leaving behind a dark image with white spots due to camera noise. The transmission is interrupted before the complete image can be transmitted.
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Being very close companies, OPPO and OnePlus have decided to create a new partnership, with the latter being a pioneer in the market. It has become the representative of the best smartphones in the group, and this will be seen very soon.
Proving this, OnePlus has announced that it will have news soon. The following brand assets will be announced on February 7, 2023. We are talking about OnePlus 11 5G and Buds Pro 2.
In recent years, OnePlus has been showcasing new hardware in an attempt to find a new place in the market. The brand has not always seen its full potential, betting on mid-range or entry-level smartphones.
The situation is changing, and the novelty will go on sale in early 2023, February 7. It is on this day that the new OnePlus 11 5G will be presented with all the expected news. We definitely have the new Qualcomm Snapdragon 8 Gen 2 SoC here. There's still 16GB of storage left and 256GB of onboard storage.
It is expected that he will receive a 6.7-inch OLED display with a resolution of 1440p and a frequency of 120 Hz. In the field of photography, we will have an important change: a 50 MP main camera, a 48 MP ultra wide-angle camera and a 32 MP telephoto lens with 2x zoom. For selfies and video calls, you'll have a 16-megapixel camera.
The photography partnership with Hasselblad will continue with OnePlus for fine-tuning and some additions. This alliance has brought important results for the best smartphones of the brand, guaranteeing the best photos in any situation.
In addition to the new OnePlus 11 5G, another brand new feature is also expected to arrive at the event. We're talking about the Buds Pro 2, which are solidifying an audio commitment that's becoming more of a reality. The brand promises "rich stereo quality sound with crystal clear clarity".
Stays like this marked by the beginning of February, another important novelty will enter the market. OnePlus wants to reclaim its place, and that will be the brand's bet for years to come. OnePlus 11 5G and Buds Pro 2 take the first step in this direction.
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According to information provided by Mukul Sharma, the unidentified POCO device can be identified by the model number 22127PC95I. Due to the fact that it was first seen online, the marketing name of this equipment is still a mystery.
POCO has not launched new mobile devices, including smartphones, to the market for some time now. On the other hand, several POCO smartphones such as POKO X5 and X5 Pro have been spotted on various certification sites, suggesting that the company will release these products soon. Today a new smartphone from the sub-brand xiaomi has been spotted on the BIS India website but the device does not have a name or any other details associated with it.
A new POCO device (model number 22127PC95I) has been included in the Indian BIS certification. POCO F5 has the model number 23013PC75I. #A LITTLE pic.twitter.com/NAFloP5Crt
— Mukul Sharma (@stufflistings) December 19, 2022
According to information provided by Mukul Sharma, the unidentified POCO device can be identified by the model number 22127PC95I. Due to the fact that it was first seen online, the marketing name of this equipment is still a mystery. It is possible that it will debut as a mid-range smartphone. The Bureau of Indian Standards (BIS) website, other than the model number of the smartphone, does not provide any additional information about the device. However, this seems to indicate that the product will be available in the Indian market very soon.
In other related news, POCO X5 5G has recently been seen on several certification sites including SIRIM in Malaysia, BIS in India and the US FCC. According to various sources, it is possible that this is a renamed or modified version Redmi Note 12 5Gwhich was recently released in China.
It is supposed to be equipped screen 6.67″ AMOLED display with 120Hz refresh rate and chipset Snapdragon 4 Gen 1 inside. Can run MIUI 13 based on android 12 and have LPDDR4x RAM in addition to UFS 2.2 storage. The front camera is rumored to be 8MP while the main rear camera will be 48MP with 2MP depth. May have the ability drums 5000 mAh and 33W fast charging support.
In addition POCO X5 Pro 5G has recently been seen on various sites dedicated to certification. The battery is said to have a capacity of 5000 mAh and can charge at 67W. It will come with MIUI 14 preinstalled and will support n5, n7, n38, n41, n77 and n78 network bands. 5G.
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