James Webb telescope

Chris in Santa Cruz CA

Super Anarchist
5,530
1,000
earths surface
And that is why people created God(s), they are so Fracking scared of not knowing and understanding.
I sailed for decades with a philosophy professor and my favorite argument was that we don’t know what we don’t know. We gather data and no mater what box of empirical data we have to describe the known world it could be inside something else and then there’s the time issue. I am totally comfortable with saying I don’t really know and will likely never know what the grand plan is and that there likely is no plan at all and it’s just a boulder rolling down a hill. He called me a “fucking pragmatist”. With that said what would be really cool is that the Webb telescope sees the beginning of time and it says “Kilroy was here”.

 

Charlie Foxtrot

Super Anarchist
4,754
653
Floriduh
Mars Helicopter Update:

[SIZE=11pt]Hello Mars Helicopter Team & Friends![/SIZE]

[SIZE=11pt] [/SIZE]

[SIZE=11pt]In the last two weeks, the team has been busy investigating our first loss of communications in our year-long extended mission. After a series of anomaly response meetings, a week of data collection, and the heroic efforts of the Perseverance and Ingenuity Operations teams, I am very happy to report that we have re-established reliable communications with Ingenuity, and have resumed a modified form of Operations. Ingenuity appears healthy based on all available telemetry.[/SIZE]

[SIZE=11pt]In order to catch-up the larger team with where we stand, below is a writeup of the original anomaly, our elevated risk posture moving forward, and the plan to proceed with operations during Mars winter and beyond. [/SIZE]

  • [SIZE=11pt]Anomaly Summary: [/SIZE][SIZE=11pt]In summary, we have reached the point in Martian late fall/early winter at which Ingenuity can no longer support the energy demands of nominal operations.[/SIZE]



    [SIZE=11pt]Sols 426-435[/SIZE][SIZE=11pt]:  Starting on the evening of Sol 426, we believe Ingenuity started experiencing overnight battery brown-outs/electronics resets. Due to the seasonal decrease in available solar energy, increases in airborne dust density, and the drop in temperatures, the energy demand to keep the electronics powered and warm throughout the night has surpassed Ingenuity’s available energy budget. [/SIZE]



[SIZE=11pt]Each night, we believe our battery state of charge (SOC) falls low enough to where:  [/SIZE]

[SIZE=11pt]1)      [/SIZE][SIZE=11pt] our heating thermostat can no longer keep the electronics at their programmed setpoint of (e.g. -25degC)[/SIZE]

[SIZE=11pt]§  [/SIZE][SIZE=11pt]We expect that Ingenuity’s electronics are reaching overnight ambient temperatures of approximately
-80degC. This cold cycling each night presents a risk to our electronic components.[/SIZE]

[SIZE=11pt]and[/SIZE]

[SIZE=11pt]2) a reset/brown-out of our electronics occurs, which resets/clears our mission clock. [/SIZE]

[SIZE=11pt]§  [/SIZE][SIZE=11pt]Each morning Ingenuity warms up, charges its battery, and boots up according a misaligned alarm schedule/out of synchronization with Perseverance.[/SIZE]

[SIZE=11pt]When Perseverance attempted communications with Ingenuity on the morning of Sols 427 and 428, Ingenuity did not respond because it was waking up at the wrong time. The team reacted by uplinking a full-sol search activity with the Helicopter Base Station (HBS) onboard Perseverance to attempt to communicate with Ingenuity during one of its misaligned alarm widows, which succeeded.[/SIZE]

[SIZE=11pt]Since Sol 429 and every sol since, we have been in daily contact with Ingenuity by using similar morning search activities during what we believe to be the most likely times when Ingenuity would be charged up enough to attempt booting its electronics. These morning search activities reprogram the helicopter’s mission clock each sol, which for the duration of that sol, enables additional scheduled activities to make use of the energy we do have available. All telemetry downlinked so far suggests that Ingenuity is healthy, with no signs of damage from the overnight cold cycles. This morning-search followed by evening activities is our new-normal for the immediate future.[/SIZE]



  • [SIZE=11pt]Winter Environmental Forecast:[/SIZE][SIZE=11pt] Below is a plot of the environmental conditions at Jezero crater. The black line is a climatological model of airborne dust density(tau) over a Martian year, with the orange boxes representing as-observed dust tau, and the expected daily insolation(solar panel energy) illustrated in the green dotted line. We are entering the part of the Martian year with peak dust tau, combined with falling insolation. We expect to be in this challenging winter energy paradigm through until Sol ~600, at which point we expect to return to being power-positive from sol-sol.   
    0
    [/SIZE]





  •  
  • [SIZE=11pt]SOC Deficit:[/SIZE][SIZE=11pt] Currently we accumulating ~68% SOC by sunset. Based on recent environmental measurements, we expect to need ~70% SOC to keep our electronics powered throughout the night and the thermostat operating. Our current 2% SOC shortfall is expected to grow to a 9% SOC shortfall during the worst of winter. We expect to return to power-positive operations ~ Sol 600 (Sept).[/SIZE]



[SIZE=11pt] [/SIZE]

  • [SIZE=11pt]Winter Risk Posture: [/SIZE][SIZE=11pt]Our latest models suggest that regardless of tweaks to our overnight thermostat strategy, it will be extremely challenging/impossible to keep our ECM components warm & within their AFT temperatures overnight. Although component failure has always been a risk that we have carried since deployment, the risk is now magnified. ECM components were normally kept warm overnight by our battery heater(typically set to -15, -20, or -25degC) . We expect that ECM components are now thermal cycling down to the ambient overnight temperatures of -80degC. We do have limited ECM component testing to suggest that select components may survive through the winter, but we cannot predict how the entire ECM will fare.

    To be clear, we are now operating far outside our original design limits. Each sol could be our last.

    The baby has surpassed any metric of success we originally had, and we are hopeful that she will continue to beat our expectations. The team is working hard to give Ingenuity every reasonable chance possible to make it to September. [/SIZE]



  • [SIZE=11pt]Plan Ahead[/SIZE]



    [SIZE=11pt]Data Downlink: [/SIZE][SIZE=11pt]Given our elevated risk posture, our focus in the last several sols has been to prioritize data downlink from Ingenuity to the HBS. We have 2-3 more sols of transfer activities before all unique data is copied from Ingenuity to the HBS. Specifically we have GNC logs, avionics logs, RTE images, and NAV images from the last ~10 flights still onboard Ingenuity. [/SIZE]
  • [SIZE=11pt]Re-commissioning and Flight #29:[/SIZE][SIZE=11pt] After all data is transferred, the team will proceed with a 50 RPM and High Speed Spin activities to evaluate our flight-readiness given our cold cycles. Should Ingenuity receive a clean bill of health, we would be ready to execute a short sortie to the SW. This flight will improve our radio link for the next ~6 months while Perseverance samples at the delta, and may be able to capture a few RTE images of a notional MSR landing site.[/SIZE]
  • [SIZE=11pt]May-Sept: [/SIZE][SIZE=11pt]The FSW team is busy preparing two upgrades for the remainder of FY22. The first will help persist thermostat settings past our 2-sol limit, and the second will contain important navigation capability upgrades for FY23 scouting up the delta.[/SIZE]



[SIZE=11pt] [/SIZE][SIZE=11pt]Thanks to the Perseverance and Ingenuity Operations teams who have done a extraordinary job in re-establishing reliable communications with Ingenuity. I’d like to also thank our extensive list of Cog-Es across the project who dedicated long nights and weekends helping to fit our models to the data available and arriving at a solution. Please be on the lookout for Flight #29 news in the days/weeks ahead. Finally, we have received our first two sets of Ingenuity Campaign stickers(see below), one for the Tech Demo campaign(F1-5), and one for the South Seitah campaign(F6-20). Please feel free to stop by 198-220 for a set.[/SIZE]

[SIZE=11pt]Thank you,[/SIZE]

[SIZE=11pt]Teddy[/SIZE]

 

Sean

Super Anarchist
15,273
2,382
Sag Harbor, NY
(no idea why this posted in what looks like Russian maybe?)

Can’t wait!

NASA Invites Media, Public to View Webb Telescope’s First Images​

June 14, 2022 Stuart Anderson 0 Comments James Webb Telescope
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PRESS RELEASE SOURCE: NASA
Cover image – taken on March 5, 2020.Credits: NASA/Chris Gunn
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NASA, in partnership with ESA (European Space Agency) and CSA (Canadian Space Agency), will release the James Webb Space Telescope’s first full-color images and spectroscopic data during a televised broadcast beginning at 10:30 a.m. EDT on Tuesday, July 12, from NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
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Released one by one, these first images from the world’s largest and most powerful space telescope will demonstrate Webb at its full power, ready to begin its mission to unfold the infrared universe.
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Each image will simultaneously be made available on social media as well as on the agency’s website at: nasa.gov/webbfirstimages
 
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Chris in Santa Cruz CA

Super Anarchist
5,530
1,000
earths surface
Looks like it's had it's fits significant hit from space stuff.

https://time.com/6188507/webb-telescope-mirror-damage-nasa/
That is a cool article even if a bit of damage inspired it. Gives you hope that regardless of the silly human tricks going on seemingly every fucking where, that a bunch of nerds got some govt dough and stuck a bad ass telescope 1M miles from our leaky smelly over populated boat and are going to send us killer data about our home universe.
 

bowman81

Super Anarchist
1,339
173
Australia
That is a cool article even if a bit of damage inspired it. Gives you hope that regardless of the silly human tricks going on seemingly every fucking where, that a bunch of nerds got some govt dough and stuck a bad ass telescope 1M miles from our leaky smelly over populated boat and are going to send us killer data about our home universe.
Oh, absolutely the project is unbelievably cool and the data it will generate, while miles outside my level of comprehension, will be amazing.
 

Bus Driver

Cunning Linguist
Dr. Neil deGrasse Tyson added this, regarding the image -

"The deepest view ever obtained in the universe. Filled with galaxies. The several spiked objects are local stars in our own Milky Way. Ignore them. Everything else is an entire galaxy unto itself. Notice that many distort into arcs. These are distant galaxies that reveal the curvature of spacetime caused by the gravity of a cluster of galaxies in image's center."
 
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