How fast is uars travelling

The 1 in 3, risk to public safety is higher than the 1 in 10, limit that Nasa aims for. But agency officials stress that nobody has ever been hurt by objects re-entering from space. And Dr Eves points out that meteorites are falling to Earth all the time. The UARS satellite was deployed in from the space shuttle Discovery on a mission to study the make-up of Earth's atmosphere, particularly its protective ozone layer.

Nasa has warned members of the public not to touch any pieces of the spacecraft which may survive the re-entry, urging them to contact local law enforcement authorities. New images of falling satellite. Nasa satellite hurtling to Earth. The satellite also provided key data on the amount of light that comes from the sun at ultraviolet and visible wavelengths.

UARS ceased its scientific life in Contact a local law enforcement official for assistance. UARS Science Accomplishments NASA's UARS satellite, launched in from the Space Shuttle, was the first multi-instrumented satellite to observe numerous chemical constituents of the atmosphere with a goal of better understanding atmospheric photochemistry and transport.

UARS Image. It's a form of sleep- disordered breathing in which people get slightly less air than they should because some part of their airway is too narrow and—though they're not actually in danger—their body perceives they're suffocating and wakes them up.

Because the research on it is broad but rather shallow—and includes few randomized, controlled trials—sleep experts disagree about almost every aspect of the disorder, from whether it's distinct from OSA to the best therapies to ameliorate it. The exact prevalence of UARS isn't known—in part because it's thought to be so underdiagnosed—but the National Sleep Foundation estimates that 18 million Americans suffer from apnea overall, two or three men for every woman.

That said, there are some established facts about UARS: While OSA is associated with being older, heavier, and male, UARS sufferers are typically younger, leaner, and predominantly female, according to epidemiological data.

A petite build may be a risk factor, because smaller bodies have smaller airways, which can be more easily crowded by adenoids, the tongue, and the uvula, as well as relaxation of the throat during sleep. And while the literature is silent on the topic of beauty and UARS, one physician told me anecdotally that the facial structure that can put a woman at risk for UARS is sometimes linked with beauty in our culture: a small jaw and nose.

High blood pressure commonly occurs in tandem with OSA; the opposite is true for UARS, in which blood pressure can be so low that it leads to fainting and chronically cold extremities. UARS patients don't always snore or stop breathing—symptoms a bed partner would likely notice—but they tend to complain of greater fatigue than people with standard apnea do.

It sounded too good to be true: Curing my sleep disorder would cure my anxiety, stomach problems, everything. The reason for the excess fatigue is the subject of debate. One theory is that people with UARS are more exhausted because they awaken at the first ragged breath, while the "classic" apnea sufferer may sleep through his funky breathing—unaware he's snoring and even, at times, not breathing at all.

Undercutting that hypothesis, though, are sleep studies that show that tiredness isn't necessarily related to the number of apneas or arousals patients experience—and some patients may have fairly normal- looking sleep studies but still suffer from brutal fatigue. These findings have prompted some scientists to bore in on the fact that UARS coexists with a host of other psychiatric and somatic disorders—anxiety, depression, posttraumatic stress, irritable bowel syndrome, ADHD, and fibromyalgia, among others.

They've suggested that the exhaustion—and somatic disorders—aren't caused by a shortage of sleep but by the nervous system's overreaction to the disordered breathing. If that's true, treating the irregular breathing could mean the anxiety or fibromyalgia recedes without doing anything else. It frankly sounded too good to be true: Not only did I have Gelb's "pretty girl's sleep disorder," but curing it would eliminate every ailment I've ever had.

I felt like one of those parents who can't face that their child has a behavior problem and so, instead, blame gluten or vaccines or the kid being "too creative" for school. I walked in fully expecting to be told that my dentist was a quack and I was a head case. Instead, Susan Manganaro, MD, took one look at my history, peered into my mouth, and agreed with Gelb although Stony Brook is abandoning the term UARS—they see it as a manifestation of OSA and think it's misleading to cordon off sufferers just because they're mostly thin women.

Again, my tongue was of great interest. It means your tongue is pressing against your teeth because there isn't enough room for it. She said I likely needed to use a continuous positive airway pressure machine CPAP , which would blow air up my nose and keep my breathing even. To confirm the diagnosis and then titrate the machine to the right air pressure, I needed to do two overnight sleep studies in the hospital. Those studies—sensors all over my head and body, a tube up my nose, a camera watching me while I slept in a Motel 6—ish room with pastel ocean scenes on the wall—showed 70 arousals in the 6.

I spent two of those hours lying awake, giving me a "sleep efficiency" rating of 69 percent normal is anything over 85 percent. The diagnosis? Moderate sleep apnea with mild sleep fragmentation. After some tussling with my health insurer Manganaro says insurers seem to prefer to wait until people develop the calamitous downstream effects of untreated apnea—such as high blood pressure and stroke—rather than pay for preventive measures , my CPAP machine finally arrived.

It looked like a clock radio, connected by a long tube to a mask for your face. I had to try five masks before I found one that didn't give me claustrophobia or rub my nostrils so raw and pink that I looked like a coke-addicted rabbit when I awoke. Ultimately I settled on a snazzy ResMed AirFit P10 for Her, size extra-small, that goes just into the tips of my nostrils and gives me the appearance of having a dainty lilac-and-white elephant trunk dangling off my schnoz.

It's the least sexy thing I've ever worn to bed, outside of the disposable panties filled with ice packs and Tucks hemorrhoid pads the hospital gives you after you have a baby. I was told it would take a couple of weeks to get used to the machine, but it took me nearly two months. It was definitely a "nevertheless, she persisted" type of situation. At first, I had to use sleeping pills to be able to fall asleep with the mask, and I'd often rip it off in the wee hours.

But then the turning point came: I woke up one morning and realized I'd slept straight through the night—CPAP success! The radiation increase caused Earth's atmosphere to expand, which increased drag on the satellite, causing it to fall faster. But more than 1, pounds kilograms of debris will probably survive the fiery plunge and slam down to Earth. The biggest piece to reach the surface intact will most likely be a pound kilogram piece of the spacecraft's frame.

The only tip scientists can give for now about the location of the "debris footprint" is that it will be somewhere between 57 degrees north latitude and 57 degrees south latitude—an area encompassing most of Earth's populated land. UARS, which collected data on Earth's atmosphere from to , was designed well before scientists started to worry about space debris. During the satellite's development, its creators focused on how to deploy it safely, not how it would end its days, said the University of Michigan's Wilbert Skinner , one of the lead scientists for UARS.

Though the satellite's death plunge will be dramatic—and will create a visible light show for nearby observers—it is unlikely to endanger anyone on the ground. All rights reserved. However, it's still too early to know where the satellite's components will land, Matney said. Share Tweet Email. Read This Next Wild parakeets have taken a liking to London.