NASA Universe-Watching Satellite Losing Its Cool
coondoggie writes "NASA this week said its Wide-field Infrared Survey Explorer, or WISE satellite is heating up — not a good thing when your primary mission instrument needs to be kept cold to work. According to NASA, WISE has two coolant tanks that keep the spacecraft's normal operating temperature at 12 Kelvin (minus 438 degrees Fahrenheit). The outer, secondary tank is now depleted, causing the temperature to increase. One of WISE's infrared detectors, the longest-wavelength band most sensitive to heat, stopped producing useful data once the telescope warmed to 31 Kelvin (minus 404 degrees Fahrenheit)."
first post!
Sometime in it's orbit, would it drop down to 12K? Meaning, could it be still used when and if it cools down enough - at least until someone can get up their to replenish it?
RIP America
July 4, 1776 - September 11, 2001
I don't understand your numbers. I talk in Celsius.
I'll bet it's because of the alien heating lasers. They don't want us to see too much/far.
Every time I start to have faith in humanity, I ruin it by driving to work between 7 and 8 am.
If you read the article it says that the solid hydrogen was expected to disappear about 10 months after launch, and it was launched in Dec 2009. Now it's 8/10.
What's so remarkable about something being used up that was designed to be used up?
Nothing to see here, move along!
--PM
http://www.youtube.com/watch?v=Enfn9PL5htQ
The primary tank is still running, and now will do a
It appears, to the uninformed such as myself, that this satellite was meant to have a life of about 2 years. The good news is that it accomplished its primary mission. The bad news is that the NASA boys either didn't plan accordingly to cool it properly for its second run, or it was a hopeful objective.
Absolute power corrupts absolutely. indymedia
Plus, you know, it's been rather hot outside. Waaayyyy outside.
[j/k]
I think people in the USA with a brain will be able to grasp kelvin/Celsius fine... The others don't need to be reading this.
> minus 438 F
What a useless number. Why not put it in useful terms: 21.6 R!
Global warming is wider spread then previously thought.
"I'm not a quack, I'm a mad scientist! There's a difference." - Dr. Cockroach
It finished the first pass a month ago and will be doing another pass as it heats up to check for differences since the last pass.
The new infrared data provided by WISE should be approximately 1000 times more sensitive than previous data.
"Alright, who's the WISE guy who emptied the coolant tank?"
If you lose your cool at that joke, well, I'd like to say that wouldn't be a WISE course of action, but...
Apparently their problems include the NOAA-16 satellite too:
http://www.climatechangefraud.com/climate-reports/7491-official-satellite-failure-means-decade-of-global-warming-data-doubtful
"readings for June and July 2010 for Lake Michigan showed crazy temperatures off the scale ranging in the low to mid hundreds - with some parts of the Wisconsin area apparently reaching 612 F."
Is it possible to change its orbit so it's constantly in the umbra of something? The earth, the moon, IIS, anything?
I don't know the meaning of the word 'don't' - J
Several years ago I got the idea to use my wife's feet as a heat sink for an overclocked CPU. Once I solved the issue of frost buildup on the chip, it worked great.
There are 01 kinds of cars in the world. The General Lee, and everything else.
That's a NOAA bird. Are you one of those idiots that thinks "America" plus "Space" means "NASA"?
The only place which would be "constantly" in the umbra from the Sun would be the L2 LaGrange point, opposite the sun. http://upload.wikimedia.org/wikipedia/commons/e/ee/Lagrange_points2.svg The Sun-staring SOHO uses the opposite L1 to stay OUT of the umbra. However, it's roughly a million miles from earth. So, let's just say no and build another one.
Any other place that you "park it" will end up revolving into view of the Sun. Sorry. I didn't design this system.
Well, a quick google on NOAA-16 leads to this:
http://www.publicaffairs.noaa.gov/releases2000/nov00/noaa00r323.html
So, you're right, "America" plus "Space" doesn't equal "NASA", but "NOAA-16" equals "NASA, NOAA plus contractors"
Apology accepted :)
In May of 2009, the Spitzer IR space telescope ran out of coolant and transitioned to a "warm mission":
http://www.jpl.nasa.gov/news/news.cfm?release=2009-086
However...
http://en.wikipedia.org/wiki/Wide-field_Infrared_Survey_Explorer ...The WISE group's bid for continued funding for an extended "warm mission" was recently scored low by a NASA review board, in part because of a lack of outside groups publishing on WISE Data. Such a mission would have allowed use of the 3.4 and 4.6 micron detectors after the last of cryo-coolant had been exhausted, with the goal of completing a second sky survey to detect additional objects and obtain parallax data on putative brown dwarf stars.
the leongest or
BSD's filesy5tem
It achieved 100% objectives. Its on extended mission now. But probably will not complete a 2nd full-sky mapping.
Okay, stupid question, but isn't space 'cold'? I'm having a hard time picturing why the thing is heating up when it is in outer space.
At least it didn't get on the radio and swear at everybody, then grab two beers and jump out into space.
Or maybe it did....
No need for a disposable satellite if you want to do IR astronomy. It flies in the tropopause above the atmospheric water vapor so the sky is transparent. There's no need to worry about running out of cryogen. Just keep enough for the mission on the plane, and refill with each landing.
share. *BSD is by simple fucking I see the same of programming Why not? It's quick Lite is straining get touQgh. I hope May do, may not available to and shower. For
F&ck it, build another.
More NASA cover-ups engineered to hide what they are really discovering.
Fuck NASA and the Illuminati controled governments.
That's mostly a function of how they operate. When you're only going to produce one or two of a particularly complex device that you can't touch after it starts working, it's generally either going to work great (because you spent a whole lot of time making sure everything was perfect) or fail completely (because you missed that one important detail and turned it into a cloud of fine ash).
Have you been touched by his noodly appendage?