Planet Ceres | |
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Spinage (OP) User ID: 57133547 United States 03/10/2015 05:08 PM Report Abusive Post Report Copyright Violation | OK, after more and more searching I finally found this: Dawn won't begin its work at Ceres on Friday morning. Rather, the probe will spend about six weeks spiraling down to its first science orbit, which Dawn should reach on April 23. So we have to wait till April 24th to see any pictures of the dwarf planet. |
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Anonymous Coward User ID: 68474074 United Kingdom 03/10/2015 06:04 PM Report Abusive Post Report Copyright Violation | Thanks for the follow up, but I still don't see why it couldn't snap a few more pics on it's way down. Quoting: Fret Wiz Two of the four reaction wheels on Dawn have broken down. This severely limits JPL's ability to point Dawn at Ceres. Every time they do that now they need to use thrusters, which consume propellant. The images Dawn has taken so far are to help navigate Dawn towards Ceres and assess it rotation and yes they have had to cut down on the number of images taken to save fuel. There will be plenty of great images to come throughout the year once Dawn is in low orbit. K |
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Anonymous Coward User ID: 2187081 United States 03/11/2015 01:34 AM Report Abusive Post Report Copyright Violation | Thanks for the follow up, but I still don't see why it couldn't snap a few more pics on it's way down. Quoting: Fret Wiz Two of the four reaction wheels on Dawn have broken down. This severely limits JPL's ability to point Dawn at Ceres. Every time they do that now they need to use thrusters, which consume propellant. The images Dawn has taken so far are to help navigate Dawn towards Ceres and assess it rotation and yes they have had to cut down on the number of images taken to save fuel. There will be plenty of great images to come throughout the year once Dawn is in low orbit. K How do you know this? Not being rude, but just very interested. Thanks. |
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Anonymous Coward User ID: 64356738 United States 03/11/2015 01:41 AM Report Abusive Post Report Copyright Violation | OK, after more and more searching I finally found this: Quoting: Spinage Dawn won't begin its work at Ceres on Friday morning. Rather, the probe will spend about six weeks spiraling down to its first science orbit, which Dawn should reach on April 23. So we have to wait till April 24th to see any pictures of the dwarf planet. Itll be late watch. Almost 2 months to Photoshop ice and rocks. Cool. |
Anonymous Coward User ID: 50732251 United States 03/11/2015 01:54 AM Report Abusive Post Report Copyright Violation | OK, after more and more searching I finally found this: Quoting: Spinage Dawn won't begin its work at Ceres on Friday morning. Rather, the probe will spend about six weeks spiraling down to its first science orbit, which Dawn should reach on April 23. So we have to wait till April 24th to see any pictures of the dwarf planet. Why? Are we to believe that they don't have the technology to take pictures while they are spiraling into a closer orbit? |
Anonymous Coward User ID: 67621636 United States 03/11/2015 01:57 AM Report Abusive Post Report Copyright Violation | Where are all the pictures of this planet Ceres, that the Dawn Vessel should be taking? Quoting: Spinage It was big news until it came into orbit with the planet. Then silence. Anyone have any links with new pictures? Thanks. I have not read a single post in response to your question. Why? Because your question is 100% valid and I have no desire to entertain bullshit reasoning. Great point OP. Something is fucking wrong. |
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Anonymous Coward User ID: 67621636 United States 03/11/2015 02:01 AM Report Abusive Post Report Copyright Violation | Thanks for the follow up, but I still don't see why it couldn't snap a few more pics on it's way down. Quoting: Fret Wiz Two of the four reaction wheels on Dawn have broken down. This severely limits JPL's ability to point Dawn at Ceres. Every time they do that now they need to use thrusters, which consume propellant. The images Dawn has taken so far are to help navigate Dawn towards Ceres and assess it rotation and yes they have had to cut down on the number of images taken to save fuel. There will be plenty of great images to come throughout the year once Dawn is in low orbit. K K is either regurdialating what he/she read or is a shill. Which is it K? |
Anonymous Coward User ID: 41536543 United States 03/11/2015 02:04 AM Report Abusive Post Report Copyright Violation | Thanks for the follow up, but I still don't see why it couldn't snap a few more pics on it's way down. Quoting: Fret Wiz Two of the four reaction wheels on Dawn have broken down. This severely limits JPL's ability to point Dawn at Ceres. Every time they do that now they need to use thrusters, which consume propellant. The images Dawn has taken so far are to help navigate Dawn towards Ceres and assess it rotation and yes they have had to cut down on the number of images taken to save fuel. There will be plenty of great images to come throughout the year once Dawn is in low orbit. K K is either regurdialating what he/she read or is a shill. Which is it K? NASA has the same info. Seems awfully convenient, but I hadn't heard it yet. Seems that's the story we're stuck with. |
Anonymous Coward User ID: 41536543 United States 03/11/2015 02:16 AM Report Abusive Post Report Copyright Violation | NASA's Dawn Mission Addresses Second Reaction Wheel Loss HOUSTON — The Dawn mission team at NASA’s Jet Propulsion Laboratory in Pasadena, Calif., have slowed the probe’s scheduled Aug. 25 gravitational escape from Vesta until early September while controllers checked out high friction readings from a second spacecraft reaction wheel. The condition is not expected to affect the second leg of its eight-year main belt asteroid mission to Ceres, or data collection at the dwarf planet. The difficulty, which triggered a software shutdown of the spacecraft pointing device on Aug. 8, should not interfere with Dawn’s scheduled arrival at Ceres in February 2015, according to Marc Rayman, NASA’s Dawn chief engineer and mission director. Dawn is equipped with four reaction wheels, though orbital data-gathering operations normally require three. The first Dawn reaction wheel loss, in June 2010, prompted the development of a “hybrid control” strategy that relies on two reaction wheels and hydrazine thrusters on the probe for data-gathering by the spacecraft’s collection of four U.S., German and Italian cameras and spectrometers. more below... [link to aviationweek.com] |
Mudda Fugga User ID: 45413049 United States 03/11/2015 02:29 AM Report Abusive Post Report Copyright Violation | Maybe Dawn is broken? they wont say because of funding so it works but its broke and you just are not allowed to fugging see it? anyways I don't care anymore what NASA finds or shows us its always bullshit and then some? they are F+ in my book. ^^^^^THIS^^^^^ Last Edited by Mudda Fugga on 03/11/2015 02:33 AM Mudda Fugga! Gimme a hug! |
Anonymous Coward User ID: 9895642 Canada 03/11/2015 02:45 AM Report Abusive Post Report Copyright Violation | Thanks for the follow up, but I still don't see why it couldn't snap a few more pics on it's way down. Quoting: Fret Wiz Two of the four reaction wheels on Dawn have broken down. This severely limits JPL's ability to point Dawn at Ceres. Every time they do that now they need to use thrusters, which consume propellant. The images Dawn has taken so far are to help navigate Dawn towards Ceres and assess it rotation and yes they have had to cut down on the number of images taken to save fuel. There will be plenty of great images to come throughout the year once Dawn is in low orbit. K LOL there's always some fuck up that limits their capacity to take/transmit photos. I bet the whole thing goes "offline" sometime between April 23-30. |
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Anonymous Coward User ID: 68474074 United Kingdom 03/11/2015 06:48 AM Report Abusive Post Report Copyright Violation | Thanks for the follow up, but I still don't see why it couldn't snap a few more pics on it's way down. Quoting: Fret Wiz Two of the four reaction wheels on Dawn have broken down. This severely limits JPL's ability to point Dawn at Ceres. Every time they do that now they need to use thrusters, which consume propellant. The images Dawn has taken so far are to help navigate Dawn towards Ceres and assess it rotation and yes they have had to cut down on the number of images taken to save fuel. There will be plenty of great images to come throughout the year once Dawn is in low orbit. K K is either regurdialating what he/she read or is a shill. Which is it K? Oh you got me there, I'm actually being paid by you mom to make the real world sound imperfect, complicated and sometimes disappointing so that you will never want to leave her basement and will always be there for her. K |
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Anonymous Coward User ID: 1561325 United States 03/11/2015 07:22 AM Report Abusive Post Report Copyright Violation | Thanks for the follow up, but I still don't see why it couldn't snap a few more pics on it's way down. Quoting: Fret Wiz Two of the four reaction wheels on Dawn have broken down. This severely limits JPL's ability to point Dawn at Ceres. Every time they do that now they need to use thrusters, which consume propellant. The images Dawn has taken so far are to help navigate Dawn towards Ceres and assess it rotation and yes they have had to cut down on the number of images taken to save fuel. There will be plenty of great images to come throughout the year once Dawn is in low orbit. K K is either regurdialating what he/she read or is a shill. Which is it K? Oh you got me there, I'm actually being paid by you mom to make the real world sound imperfect, complicated and sometimes disappointing so that you will never want to leave her basement and will always be there for her. K |
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Anonymous Coward User ID: 68474074 United Kingdom 03/11/2015 07:32 AM Report Abusive Post Report Copyright Violation | Thanks for the follow up, but I still don't see why it couldn't snap a few more pics on it's way down. Quoting: Fret Wiz Two of the four reaction wheels on Dawn have broken down. This severely limits JPL's ability to point Dawn at Ceres. Every time they do that now they need to use thrusters, which consume propellant. The images Dawn has taken so far are to help navigate Dawn towards Ceres and assess it rotation and yes they have had to cut down on the number of images taken to save fuel. There will be plenty of great images to come throughout the year once Dawn is in low orbit. K LOL there's always some fuck up that limits their capacity to take/transmit photos. I bet the whole thing goes "offline" sometime between April 23-30. These are only images produced for navigation and every time they take one during the approach they have to slew the spacecraft which costs fuel. There will be hundreds, if not thousands of images of Ceres once it is in low orbit. People on GLP said exactly the same thing about Rosetta ( that also lost two reaction wheels ) when they saw the first low resolution NAVCAM shots but there are over a thousand images of the comet now. Last week I added a link to another 300 images and no one said a word, I guess it doesn't fit in with the "we will never see an image" story. There are some very nice images of Ceres which are newer than the RC2 images in these threads but if I posted links people would only say they were photoshoped. There is also a very interesting reason why Dawn, unlike Rosetta, can't change velocity and image Ceres simultaneously and why JPL can't receive data from Dawn while it is changing velocity but if I posted it here I would only be accused of being a shill or "regurgitating", regurgitating - seriously does no one on GLP ever find out anything about a subject ? K |
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Anonymous Coward User ID: 9895642 Canada 03/11/2015 12:26 PM Report Abusive Post Report Copyright Violation | Thanks for the follow up, but I still don't see why it couldn't snap a few more pics on it's way down. Quoting: Fret Wiz Two of the four reaction wheels on Dawn have broken down. This severely limits JPL's ability to point Dawn at Ceres. Every time they do that now they need to use thrusters, which consume propellant. The images Dawn has taken so far are to help navigate Dawn towards Ceres and assess it rotation and yes they have had to cut down on the number of images taken to save fuel. There will be plenty of great images to come throughout the year once Dawn is in low orbit. K LOL there's always some fuck up that limits their capacity to take/transmit photos. I bet the whole thing goes "offline" sometime between April 23-30. These are only images produced for navigation and every time they take one during the approach they have to slew the spacecraft which costs fuel. There will be hundreds, if not thousands of images of Ceres once it is in low orbit. People on GLP said exactly the same thing about Rosetta ( that also lost two reaction wheels ) when they saw the first low resolution NAVCAM shots but there are over a thousand images of the comet now. Last week I added a link to another 300 images and no one said a word, I guess it doesn't fit in with the "we will never see an image" story. There are some very nice images of Ceres which are newer than the RC2 images in these threads but if I posted links people would only say they were photoshoped. There is also a very interesting reason why Dawn, unlike Rosetta, can't change velocity and image Ceres simultaneously and why JPL can't receive data from Dawn while it is changing velocity but if I posted it here I would only be accused of being a shill or "regurgitating", regurgitating - seriously does no one on GLP ever find out anything about a subject ? K I'm aware of the cover stories for their black projects. They give us just enough the cookie to justify their enormous budget to the public, then they take it dark and start their real research. Not saying they are hiding anything specific. Just everything, until they decide what information is safe to share. Is this your first spawn? |