Jwst launches in less than 3 hours

I accept correct answers.

No you don't.

JWST has no thrusters to change orbit from around Earth to around the Sun.

Wrong again...

The spacecraft bus provides the necessary support functions for the operation of the Webb Observatory.

The bus is the home for six major subsystems:

   • Electrical Power Subsystem
   • Attitude Control Subsystem
   • Communication Subsystem
   • Command and Data Handling Subsystem
   • Propulsion Subsystem
   • Thermal Control Subsystem

Attitude Control Subsystem
The Attitude Control Subsystem senses the orientation of the Observatory, maintains the Observatory in a stable orbit, and provides the coarse pointing of the Observatory to the area on the sky that the Science Instruments want to observe.

Propulsion System
The Propulsion System contains the fuel tanks and the rockets that, when directed by the Attitude Control System, are fired to maintain the orbit.

Rocket Thrusters And Propellant
Webb has two types of rocket thrusters. One kind is called "Secondary Combustion Augmented Thrusters" (SCAT), and they are used for orbit correction (like applied changes in velocity for each maneuver the spacecraft makes and also for orbit station-keeping). Webb has two pairs of them (paired for redundancy). They use hydrazine and dinitrogen tetroxide, as fuel and oxidizer respectively, which makes SCAT what engineers call a "bi-propellant" thruster. The other kind of thruster on Webb is called a MRE-1, or mono-propellant rocket engine, since it only uses hydrazine. There are eight MRE-1s on Webb, and they are used for attitude control and momentum unloading of the reaction wheels.

JWST's propulsion system provides maneuvering capability for orbital insertion, station keeping, and spacecraft momentum management.

Orbit correction maneuvers, also referred to as Delta-V maneuvers, are used to augment the launch vehicle injection velocity and to maintain a transfer trajectory into orbit about L2, and then to maintain the JWST orbit around L2 (station-keeping maneuvers) for the life of the mission. There are two types of thrusters for these functions. They are mounted on the spacecraft bus to avoid introducing contamination or heat sources near the OTE/ISIM side of the observatory. The Secondary Combustion Augmented Thrusters (SCAT) are used for orbit correction (Delta-V and station-keeping), and mono-propellant rocket engines (MRE-1) are used for attitude control and momentum unloading of the reaction wheels.

The SCATs are bi-propellant thrusters, using hydrazine (N2H4) and dinitrogen tetroxide (N2O4) as fuel and oxidizer, respectively. They operate in "blowdown mode" with one tank for each type of propellant and using gaseous helium as a pressurizing agent. There are 2 pairs of SCAT thrusters (paired for redundancy). One pair is located near the center of the bottom of the spacecraft bus where JWST attaches to the launch vehicle. These are used for the first Delta-V maneuvers to reach L2 with the correct velocity for the operational orbit. These maneuvers are executed before the sun shield is deployed.

The other pair of SCAT thrusters is mounted on a boom on the side of the spacecraft opposite the solar array, oriented such that their thrust direction passes through the deployed observatory's center of mass. These are used for the orbit insertion Delta-V maneuver and station-keeping maneuvers. This pair of SCAT thrusters are used after the observatory is fully is deployed.
The MRE-1 thrusters use hydrazine as a propellant. There are 8 MRE-1s located on the spacecraft and are oriented so that torque can be applied in roll, pitch, or yaw control axes. For momentum unloads, these thrusters are fired so that the applied torque provides the desired change in the angular momentum of the reaction wheels.

So Voyager 1&2 and Pioneer 10&11..... Still in orbit around the Earth? New Horizons... Still in orbit around the Earth? Juno? All orbiting the Earth?

How about the Venus and Mars orbiters? Orbiting the Earth?

Earth is moving around 30km/s. If you apply a thrust of 30km/s in the opposite direction, what do you think happens?


Seriously is there a brain at all in that head?

Let me clarify!
Any space craft/rocket taking off from Earth only orbits Earth.
Planets like Venus and Mars orbit the Sun, when I see them from my window. Just look  at them in the sky. How they started doing it, I don't know. I just report what I see.
Earth is immobile except rotating 360°/24h  in the center of our Solar system, i.e. it is the Sun that orbits Earth. I see it all the time.

Earth is immobile except rotating 360°/24h  in the center of our Solar system, i.e. it is the Sun that orbits Earth. I see it all the time.

I see this is the troll shtick you are going along with an it does you no favours to stick with it.

Earth is immobile except rotating 360°/24h  in the center of our Solar system, i.e. it is the Sun that orbits Earth. I see it all the time.

Right, because everything is always exactly as it seems.

I just report what I see.

Same here. I report that I’ve never seen a CE tanker. Must be a hoax perpetrated by some sham organization that falsely claims it’s better than the tankers I can see from my window.

Quote from: Heiwa on August 06, 2022, 10:38:41 AM

I just report what I see.

Same here. I report that I’ve never seen a CE tanker. Must be a hoax perpetrated by some sham organization that falsely claims it’s better than the tankers I can see from my window.

CE tankers are not allowed in US ports. If you want to visit one, just ask the owner of it. I recommend you look at the six, dry, exposed to natural light, top side ballast tanks of any CE tanker that are easy to ventilate and inspect. The ballast tanks of double hull tankers consist of 100's of dark, slippery cells full with explosive gas maybe, which I personally refuse to inspect.

CE tankers are not allowed in US ports. If you want to visit one, just ask the owner of it.

Where can we find the owner of a CE tanker (off topic).

Quote from: Heiwa on August 07, 2022, 06:39:45 AM

CE tankers are not allowed in US ports. If you want to visit one, just ask the owner of it.

Where can we find the owner of a CE tanker (off topic).

Not in any US ports! They load at Kharg Island, Iran, and off-load at PR China.

Quote from: markjo on August 07, 2022, 08:43:12 AM

Quote from: Heiwa on August 07, 2022, 06:39:45 AM

CE tankers are not allowed in US ports. If you want to visit one, just ask the owner of it.

Where can we find the owner of a CE tanker (off topic).

Not in any US ports! They load at Kharg Island, Iran, and off-load at PR China.

False. None exist. There is no evidence that any exist. As well, I've never seen one from my window which is absolute evidence none exist.

Quote from: Heiwa on August 07, 2022, 08:46:51 AM

Quote from: markjo on August 07, 2022, 08:43:12 AM

Quote from: Heiwa on August 07, 2022, 06:39:45 AM

CE tankers are not allowed in US ports. If you want to visit one, just ask the owner of it.

Where can we find the owner of a CE tanker (off topic).

Not in any US ports! They load at Kharg Island, Iran, and off-load at PR China.

False. None exist. There is no evidence that any exist. As well, I've never seen one from my window which is absolute evidence none exist.

Do you have a view of Kharg Island and Chinese oil ports?

Quote from: Stash on August 07, 2022, 11:26:10 AM

Quote from: Heiwa on August 07, 2022, 08:46:51 AM

Quote from: markjo on August 07, 2022, 08:43:12 AM

Quote from: Heiwa on August 07, 2022, 06:39:45 AM

CE tankers are not allowed in US ports. If you want to visit one, just ask the owner of it.

Where can we find the owner of a CE tanker (off topic).

Not in any US ports! They load at Kharg Island, Iran, and off-load at PR China.

False. None exist. There is no evidence that any exist. As well, I've never seen one from my window which is absolute evidence none exist.

Do you have a view of Kharg Island and Chinese oil ports?

Do you have a view of US ports?

Quote from: Heiwa on August 06, 2022, 10:38:41 AM

Earth is immobile except rotating 360°/24h  in the center of our Solar system, i.e. it is the Sun that orbits Earth. I see it all the time.

I see this is the troll shtick you are going along with an it does you no favours to stick with it.

Next time you think I might be dead, just recall the feeling of endlessly posting to threads like this.  Trolls are best poked with a stick in small doses. One day you too will get bored with them.

Quote from: Masalang the Torpedo on August 06, 2022, 10:49:34 AM

Quote from: Heiwa on August 06, 2022, 10:38:41 AM

Earth is immobile except rotating 360°/24h  in the center of our Solar system, i.e. it is the Sun that orbits Earth. I see it all the time.

I see this is the troll shtick you are going along with an it does you no favours to stick with it.

Next time you think I might be dead, just recall the feeling of endlessly posting to threads like this.  Trolls are best poked with a stick in small doses. One day you too will get bored with them.

Yes, this fantastic JWST was going to film, explain and make images of stars being born at the beginning/end of the Universe and so far it has not seen anything new at all in the Cosmos. What a fiasco!

Yes, this fantastic JWST was going to film, explain and make images of stars being born at the beginning/end of the Universe and so far it has not seen anything new at all in the Cosmos. What a fiasco!

Im pretty sure you have never read anything outside of your own website in your life.
Its clear that you still dont know how to use google, so no one is suprised that you know so little.
https://time.com/6199745/james-webb-telescope-first-scientific-discovery/

Next time you post something, go to www.google.com and search to see if what your saying is supported by any fact.

Next time you post something, go to www.google.com and search to see if what your saying is supported by any fact.

Why?  Anything that comes up will just be NASA/ESA propaganda.

Quote from: MaNaeSWolf on August 07, 2022, 11:23:08 PM

Next time you post something, go to www.google.com and search to see if what your saying is supported by any fact.

Why?  Anything that comes up will just be NASA/ESA propaganda.

Well, this time it is Time magazine that says : “We’re potentially looking at the most distant starlight ever seen. The next step is to submit their findings for peer review that should hopefully validate their discovery.
The galaxy is not much as these things go. It measures 3,000 to 4,500 light years across and contains about a billion stars. In comparison, our Milky Way measures about 100,000 light years and contains an estimated 200 billion stars. But seeing something 13.5 billion light years away means we’re seeing it as it looked 13.5 billion years ago. Over time, the small, old galaxy would have merged with others nearby, forming a single, giant galactic mass." Bla, bla.
Imagine that the JWST has taken a picture of a billion stars 13.5 billion light years away almost et the end of the Universe. I have looked at the image and it seems to be taken last week.

I have looked at the image and it seems to be taken last week.

Actually, it was taken about 2 weeks ago.

Quote from: Heiwa on August 08, 2022, 10:02:19 PM

I have looked at the image and it seems to be taken last week.

Actually, it was taken about 2 weeks ago.

OK, but I only saw it last week. And after further looking at the JWST image of the famous galaxy that was formed 13.5 billion years ago I see plenty more galaxies in the background that are 17 and 20 billion years old. How could the experts have missed those??

Quote from: Stash on August 08, 2022, 11:39:30 PM

Quote from: Heiwa on August 08, 2022, 10:02:19 PM

I have looked at the image and it seems to be taken last week.

Actually, it was taken about 2 weeks ago.

OK, but I only saw it last week. And after further looking at the JWST image of the famous galaxy that was formed 13.5 billion years ago I see plenty more galaxies in the background that are 17 and 20 billion years old. How could the experts have missed those??

And how do you know those galaxies are 17-20 billion years old?

Quote from: Heiwa on August 09, 2022, 02:12:20 AM

Quote from: Stash on August 08, 2022, 11:39:30 PM

Quote from: Heiwa on August 08, 2022, 10:02:19 PM

I have looked at the image and it seems to be taken last week.

Actually, it was taken about 2 weeks ago.

OK, but I only saw it last week. And after further looking at the JWST image of the famous galaxy that was formed 13.5 billion years ago I see plenty more galaxies in the background that are 17 and 20 billion years old. How could the experts have missed those??

And how do you know those galaxies are 17-20 billion years old?

They look older than the  newly discovered/filmed 13.5 billion years old galaxy in front of them. But why don't you ask the JWST-staff having found the new billions of stars?

But why don't you ask the JWST-staff having found the new billions of stars?

That's who we listen too. No good listening to a crackpot moron who things everything - including a star that has more than 333,000 times the mass of Earth, orbits the Earth.

Quote from: NotSoSkeptical on August 09, 2022, 06:51:20 AM

Quote from: Heiwa on August 09, 2022, 02:12:20 AM

Quote from: Stash on August 08, 2022, 11:39:30 PM

Quote from: Heiwa on August 08, 2022, 10:02:19 PM

I have looked at the image and it seems to be taken last week.

Actually, it was taken about 2 weeks ago.

OK, but I only saw it last week. And after further looking at the JWST image of the famous galaxy that was formed 13.5 billion years ago I see plenty more galaxies in the background that are 17 and 20 billion years old. How could the experts have missed those??

And how do you know those galaxies are 17-20 billion years old?

They look older than the  newly discovered/filmed 13.5 billion years old galaxy in front of them. But why don't you ask the JWST-staff having found the new billions of stars?

How do they "look older"?

Quote from: Heiwa on August 09, 2022, 07:58:06 AM

But why don't you ask the JWST-staff having found the new billions of stars?

That's who we listen too. No good listening to a crackpot moron who things everything - including a star that has more than 333,000 times the mass of Earth, orbits the Earth.

You really have to visit my website, where I explain how the Sun and planet Mars orbit each other with Earth, immobile in between at the center of the Solar system. Earth is rotating 360°/24 hrs, so we on Earth can watch the free show in the sky all the time. JWST also orbits Earth of course. Just watch the Sun in the morning above your horizon and watch Mars at night, when it is illuminated by the Sun, you'll soon understand.

Quote from: Masalang the Torpedo on August 09, 2022, 08:02:03 AM

Quote from: Heiwa on August 09, 2022, 07:58:06 AM

But why don't you ask the JWST-staff having found the new billions of stars?

That's who we listen too. No good listening to a crackpot moron who things everything - including a star that has more than 333,000 times the mass of Earth, orbits the Earth.

You really have to visit my website, where I explain how the Sun and planet Mars orbit each other with Earth, immobile in between at the center of the Solar system. Earth is rotating 360°/24 hrs, so we on Earth can watch the free show in the sky all the time. JWST also orbits Earth of course. Just watch the Sun in the morning above your horizon and watch Mars at night, when it is illuminated by the Sun, you'll soon understand.

No one needs to visit your crackpot conspiracy site.  If you can't explain it here, you can't explain it at all.

Quote from: Heiwa on August 09, 2022, 10:29:24 AM

Quote from: Masalang the Torpedo on August 09, 2022, 08:02:03 AM

Quote from: Heiwa on August 09, 2022, 07:58:06 AM

But why don't you ask the JWST-staff having found the new billions of stars?

That's who we listen too. No good listening to a crackpot moron who things everything - including a star that has more than 333,000 times the mass of Earth, orbits the Earth.

You really have to visit my website, where I explain how the Sun and planet Mars orbit each other with Earth, immobile in between at the center of the Solar system. Earth is rotating 360°/24 hrs, so we on Earth can watch the free show in the sky all the time. JWST also orbits Earth of course. Just watch the Sun in the morning above your horizon and watch Mars at night, when it is illuminated by the Sun, you'll soon understand.

ow

No one needs to visit your crackpot conspiracy site.  If you can't explain it here, you can't explain it at all.

My website about safety at sea was originally promoting the famous Coulombi Egg tanker approved by the United Nations IMO September 1997. The Committee handling the approval was chaired by a Swede, Börje Stenström, since 1990. Then September 1994 a Swedish owned, but Estonian flag, passenger ferry was sunk in the Baltic killing >1000 people. Börje Stenström, i,a, was appointed by the Swedish government to investigate the mysterious sinking. So Börje suddenly had two jobs. Börje told everyone that the ferry had lost its bow visor in a storm. The visor was badly designed, he said. In reality the ferry was sunk due to sabotage. Börje suddenly died February 1997 - and was probably murdered - but then my Coulombi Egg tanker was already formally approved by the Committee. The IMO general assembly approved it in September 1997. And in December 1997 the Swedish government announced that the cause of the ferry killing >1000 innocent persons was a hidden design fault that couldn't be found with due diligence. I explained something else at my website. I was then happily working in Egypt and just watched the show from there. The ferry? It was used to transport weapons and drugs paid for by some American XXX agency and the owners didn't want to share the profits. There was apparently a shoot-out on the bridge where the captain and some other people were brutally murdered just before the sinking took place. So the Swedish government immediately decided that no dead victims could be  rescued as some of them were full of bullet holes. Etc, etc. I just happened to become visitor to the show.

Quote from: NotSoSkeptical on August 09, 2022, 12:46:21 PM

Quote from: Heiwa on August 09, 2022, 10:29:24 AM

Quote from: Masalang the Torpedo on August 09, 2022, 08:02:03 AM

Quote from: Heiwa on August 09, 2022, 07:58:06 AM

But why don't you ask the JWST-staff having found the new billions of stars?

That's who we listen too. No good listening to a crackpot moron who things everything - including a star that has more than 333,000 times the mass of Earth, orbits the Earth.

You really have to visit my website, where I explain how the Sun and planet Mars orbit each other with Earth, immobile in between at the center of the Solar system. Earth is rotating 360°/24 hrs, so we on Earth can watch the free show in the sky all the time. JWST also orbits Earth of course. Just watch the Sun in the morning above your horizon and watch Mars at night, when it is illuminated by the Sun, you'll soon understand.

ow

No one needs to visit your crackpot conspiracy site.  If you can't explain it here, you can't explain it at all.

My website about safety at sea was originally promoting the famous Coulombi Egg tanker approved by the United Nations IMO September 1997. The Committee handling the approval was chaired by a Swede, Börje Stenström, since 1990. Then September 1994 a Swedish owned, but Estonian flag, passenger ferry was sunk in the Baltic killing >1000 people. Börje Stenström, i,a, was appointed by the Swedish government to investigate the mysterious sinking. So Börje suddenly had two jobs. Börje told everyone that the ferry had lost its bow visor in a storm. The visor was badly designed, he said. In reality the ferry was sunk due to sabotage. Börje suddenly died February 1997 - and was probably murdered - but then my Coulombi Egg tanker was already formally approved by the Committee. The IMO general assembly approved it in September 1997. And in December 1997 the Swedish government announced that the cause of the ferry killing >1000 innocent persons was a hidden design fault that couldn't be found with due diligence. I explained something else at my website. I was then happily working in Egypt and just watched the show from there. The ferry? It was used to transport weapons and drugs paid for by some American XXX agency and the owners didn't want to share the profits. There was apparently a shoot-out on the bridge where the captain and some other people were brutally murdered just before the sinking took place. So the Swedish government immediately decided that no dead victims could be  rescued as some of them were full of bullet holes. Etc, etc. I just happened to become visitor to the show.

Nothing you said above explains "how the Sun and planet Mars orbit each other with Earth, immobile in between at the center of the Solar system."  You simply point back at your website, again, and ramble about nothing that has anything do with what was asked.  So once again.....

No one needs to visit your crackpot conspiracy site.  If you can't explain it here, you can't explain it at all.

Quote from: Heiwa on August 09, 2022, 07:17:18 PM

Quote from: NotSoSkeptical on August 09, 2022, 12:46:21 PM

Quote from: Heiwa on August 09, 2022, 10:29:24 AM

Quote from: Masalang the Torpedo on August 09, 2022, 08:02:03 AM

Quote from: Heiwa on August 09, 2022, 07:58:06 AM

But why don't you ask the JWST-staff having found the new billions of stars?

That's who we listen too. No good listening to a crackpot moron who things everything - including a star that has more than 333,000 times the mass of Earth, orbits the Earth.

You really have to visit my website, where I explain how the Sun and planet Mars orbit each other with Earth, immobile in between at the center of the Solar system. Earth is rotating 360°/24 hrs, so we on Earth can watch the free show in the sky all the time. JWST also orbits Earth of course. Just watch the Sun in the morning above your horizon and watch Mars at night, when it is illuminated by the Sun, you'll soon understand.

ow

No one needs to visit your crackpot conspiracy site.  If you can't explain it here, you can't explain it at all.

My website about safety at sea was originally promoting the famous Coulombi Egg tanker approved by the United Nations IMO September 1997. The Committee handling the approval was chaired by a Swede, Börje Stenström, since 1990. Then September 1994 a Swedish owned, but Estonian flag, passenger ferry was sunk in the Baltic killing >1000 people. Börje Stenström, i,a, was appointed by the Swedish government to investigate the mysterious sinking. So Börje suddenly had two jobs. Börje told everyone that the ferry had lost its bow visor in a storm. The visor was badly designed, he said. In reality the ferry was sunk due to sabotage. Börje suddenly died February 1997 - and was probably murdered - but then my Coulombi Egg tanker was already formally approved by the Committee. The IMO general assembly approved it in September 1997. And in December 1997 the Swedish government announced that the cause of the ferry killing >1000 innocent persons was a hidden design fault that couldn't be found with due diligence. I explained something else at my website. I was then happily working in Egypt and just watched the show from there. The ferry? It was used to transport weapons and drugs paid for by some American XXX agency and the owners didn't want to share the profits. There was apparently a shoot-out on the bridge where the captain and some other people were brutally murdered just before the sinking took place. So the Swedish government immediately decided that no dead victims could be  rescued as some of them were full of bullet holes. Etc, etc. I just happened to become visitor to the show.

Nothing you said above explains "how the Sun and planet Mars orbit each other with Earth, immobile in between at the center of the Solar system."  You simply point back at your website, again, and ramble about nothing that has anything do with what was asked.  So once again.....

No one needs to visit your crackpot conspiracy site.  If you can't explain it here, you can't explain it at all.

OK, just look out of your window and watch in the sky how the Sun and planet Mars orbit each other in space above and around. They are kept in balance by equal forces when orbiting each other. The forces are electromagnetic and centrifugal and produced by the high temperature/density metal cores of the Sun and Mars, etc. And Earth happens to be immobile but rotating 360°/24hrs in between the Sun and Mars at the center of the Solar system and the Universe. In the background are billions of galaxies and stars that are filmed by the JWST but they are just produced at Hollywood to add color to the show. It is a variation of Neal and Buzz (not) on the Moon 1969.

OK, just look out of your window and watch in the sky how the Sun and planet Mars orbit each other in space above and around. They are kept in balance by equal forces when orbiting each other. The forces are electromagnetic and centrifugal and produced by the high temperature/density metal cores of the Sun and Mars, etc. And Earth happens to be immobile but rotating 360°/24hrs in between the Sun and Mars at the center of the Solar system and the Universe. In the background are billions of galaxies and stars that are filmed by the JWST but they are just produced at Hollywood to add color to the show. It is a variation of Neal and Buzz (not) on the Moon 1969.

That is what you 'see', but it in no way reflects measurable reality.

If the the Earth is stationary at the centre of the Universe what causes stellar parallax over the course of a year?  And what causes the retrograde orbits of the outer planets?

If the the Earth is stationary at the centre of the Universe what causes stellar parallax over the course of a year?  And what causes the retrograde orbits of the outer planets?

You are asking Heiwa rational questions and expecting rational answers. This is irrational.

Quote from: Heiwa on August 09, 2022, 10:10:57 PM

OK, just look out of your window and watch in the sky how the Sun and planet Mars orbit each other in space above and around. They are kept in balance by equal forces when orbiting each other. The forces are electromagnetic and centrifugal and produced by the high temperature/density metal cores of the Sun and Mars, etc. And Earth happens to be immobile but rotating 360°/24hrs in between the Sun and Mars at the center of the Solar system and the Universe. In the background are billions of galaxies and stars that are filmed by the JWST but they are just produced at Hollywood to add color to the show. It is a variation of Neal and Buzz (not) on the Moon 1969.

That is what you 'see', but it in no way reflects measurable reality.

If the the Earth is stationary at the centre of the Universe what causes stellar parallax over the course of a year?  And what causes the retrograde orbits of the outer planets?

Thanks for asking.
Re “stellar parallax over the course of a year” you have to ask Hollywood about it, as it organizes the decorations of the JWST filming.
Re “the retrograde orbits of the outer planets“ they have nothing to do with Earth being immobile. The outer planets orbit around the Sun.