NASA’s Webb Reaches Alignment Milestone, Optics Working Successfully | |
Mr. Smokey
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Anonymous Coward User ID: 76157811 United States 03/17/2022 10:15 AM Report Abusive Post Report Copyright Violation | Following the completion of critical mirror alignment steps, NASA’s James Webb Space Telescope team expects that Webb’s optical performance will be able to meet or exceed the science goals the observatory was built to achieve Quoting: Mithradates [link to www.nasa.gov (secure)] Take a picture already |
Mithradates
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American Poet
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Anonymous Coward User ID: 79336278 United States 03/17/2022 10:58 AM Report Abusive Post Report Copyright Violation | How come they have been showing pictures that is stated they have come from James Webb the last 2 weeks if they just got the camera lenses aligned? Quoting: Anonymous Coward 71425276 those images were inspected by scientists who didn't ask where they come from/how, and have no background in wireles communication science. Perhaps if they had asked, they wouldn't have even bothered recreating the graphics. |
JustmeTX
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Lazy Monk
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Astromut
Senior Forum Moderator 03/17/2022 11:12 AM Report Abusive Post Report Copyright Violation | I have lost commercial FM signal two miles away from the tower when going under a highway overpass. But NASA's webb has no problem transmitting high bandwidth images from over a million miles away. Believable. Quoting: Anonymous Coward 79336278 Yup. Learn how to calculate a link budget. Thread: Do you trust the Pluto images to be real? Here is what I don't. (Page 6) |
Astromut
Senior Forum Moderator 03/17/2022 11:14 AM Report Abusive Post Report Copyright Violation | How come they have been showing pictures that is stated they have come from James Webb the last 2 weeks if they just got the camera lenses aligned? Quoting: Anonymous Coward 71425276 You mean the images taken of stars being used for alignment? Like the image with 18 copies of the same star? Or the first "mirror selfie?" They all indicated the mirrors weren't aligned yet. |
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Crypto-Tard
User ID: 78144147 United States 03/17/2022 11:38 AM Report Abusive Post Report Copyright Violation | Following the completion of critical mirror alignment steps, NASA’s James Webb Space Telescope team expects that Webb’s optical performance will be able to meet or exceed the science goals the observatory was built to achieve Quoting: Mithradates [link to www.nasa.gov (secure)] Take a picture already They already did that to align the scope. We need them to point it somewhere amazing and share those photos.' They could start with a closeup of the giant alien ship on the other side of the sun. Last Edited by Crypto-Tard on 03/17/2022 11:39 AM When you are afraid of losing your life, you have already lost your life. Don't be afraid. |
Anonymous Coward User ID: 80712809 Switzerland 03/17/2022 11:41 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 76034035 United States 03/17/2022 11:45 AM Report Abusive Post Report Copyright Violation | I have lost commercial FM signal two miles away from the tower when going under a highway overpass. But NASA's webb has no problem transmitting high bandwidth images from over a million miles away. Believable. Quoting: Anonymous Coward 79336278 What's unbelievable is that you passed a driving test, and can afford a car. Not believable. |
Anonymous Coward User ID: 79336278 United States 03/17/2022 12:01 PM Report Abusive Post Report Copyright Violation | I have lost commercial FM signal two miles away from the tower when going under a highway overpass. But NASA's webb has no problem transmitting high bandwidth images from over a million miles away. Believable. Quoting: Anonymous Coward 79336278 Yup. Learn how to calculate a link budget. Thread: Do you trust the Pluto images to be real? Here is what I don't. (Page 6) The linked describes 300db of signal loss from distance alone. Unclear if the signal loss is of the item being photographed (distant stars) or distance from transmitter unit to receiver. I didn't check if the math or equation is right. There are no amplifiers that have that sort of gain so many have to be stacked one after the other. The "pictures" generated are of static and pink noise generated by amplifying distortion through a bunch of amplifiers. It's like putting 10 distortion boxes between your guitar and amplifier and turning them all on. |
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Free me
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Billxam, ABATE, AWHA
User ID: 56270897 United States 03/17/2022 12:15 PM Report Abusive Post Report Copyright Violation | Following the completion of critical mirror alignment steps, NASA’s James Webb Space Telescope team expects that Webb’s optical performance will be able to meet or exceed the science goals the observatory was built to achieve Quoting: Mithradates [link to www.nasa.gov (secure)] Proud to be UnV'd There is one constant in life: If you build something worth having, someone will try to take it or destroy it. Proud member of A Brotherhood Against Totalitarian Enactments, Americans Who Hate Aging, proud supporter of attractive women. |
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74444
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2moreweeks
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