Intelsat Loses Another Satellite 256
Alarash writes "Intelsat reported a few days ago that its IS-804 Satellite is lost in space. According to the press release, the '[...] satellite experienced a sudden and unexpected electrical power system anomaly on January 14, 2005, at approximately 5:32 p.m. EST that caused the total loss of the spacecraft.' The satellite was in charge of the South Pacific's media delivery. As a reminder, Intelsat-7, another satellite from Intelsat, got lost a couple of months ago."
Technical info (Score:5, Informative)
http://www.intelsat.com/resources/coveragemaps/sa
Here is some technical data on the satellite:
http://www.intelsat.com/resources/coveragemaps/sa
Also here is some Satellite Basics
http://www.intelsat.com/resources/satellitebasics
Conspiracy! (Score:5, Funny)
Re:Conspiracy! (Score:3, Funny)
Explanation (Score:4, Informative)
Not an Explanation (Score:5, Funny)
"Metal whiskers", vacuum deposition, etc. are well recognized issues in satellite construction. After a few thousand birds at many millions a pop the industry is quite savvy about avoiding these.
The impending EU ban on lead in consumer products has no effect on the satellite industry (they're exempt; Li'l Jr. is unlikely to be teething on Intelsat 9008b and most of it's components aren't off-the-shelf but specialized radiation-hardened product runs).
But thank you for reading the previous /. story [slashdot.org] on this and now trendily applying it to everything trying to sound knowledgable.
"My code won't compile" " Metal whiskers! "
"My candidate lost!" " Metal whiskers! "
"Erectile dysfuntion" (all together now) " Metal whiskers! "
Re:Your sig (Score:2)
Aside from the Bible or other works where the actual author was purposefully obscured at the time for political reasons, almost nothing was written anonymously that is worth anything. Sure, there were a large number of people that didn't use their real name, but most people here don't use their real name either.
The only effect of posting anonymously here is to prevent past posts from being link
Re:Explanation (Score:2)
It's neat to know we haven't quite figured everything out yet, even about simple things like this =)
Re:Conspiracy! (Score:3, Informative)
Secondly, the first sat was recovered on dec. 3 as stated here: http://www.intelsat.com/aboutus/press/release_det
possumsat (Score:3, Interesting)
Re:possumsat (Score:3, Interesting)
With the funding they get and the clout they possess, they can have any number of satellites without our knowledge floating around in space. Hell they are probably watching your pr0n collection over your shoulder RIGHT now!
As for foreign countries - if they are capable of hijacking a satellite, you would think they would be capable of sending one up on their own. Not like "evil" countries don't already have their own satellites.
Re:possumsat (Score:2)
Re:possumsat (Score:3, Insightful)
Now, another reason I am not particularly worried about spy satellites is because I don't exactly do illegal activities. That and I do not have a window on my roof, I
Re:possumsat (Score:2)
Re:possumsat (Score:2)
This brings back memories of when Galaxy IV disappeared a few years back. I was downlinking a transmission when it just faded away. It was very strange, and set my work back several hours that day until a new bird could be arranged.
Re:possumsat (Score:2)
Max
Terrorists (Score:3, Funny)
The Department of Homeland Security is currently seeking information on two men with "strange accents" who recently purchased a laser pointer from a local Office Depot.
The two men were overheard discussing which laser pointers were the most powerful and could "shoot the farthest." The two also paid cash for the laser pointer, leaving no paper trail.
This follows disturbing recent events in which terrorists on the ground tried to down commercial aircraft by blinding the pil
Re:Conspiracy! (Score:2)
How do you know these are anormal, and that it's increased? Only for the past few centuries have we been recording data. We really don't have a good picture of our world's history, and minor changes that take place.
Yes earthquakes and volcano's are minor changes.
I, for one, (Score:2, Funny)
Welcome our new satellite-eating overlords.
Conspiracy Theory (Score:3, Interesting)
could this be a test bed for the newest extortion?? "give us the money or your satellite gets it"
Suchetha
Re:Conspiracy Theory (Score:4, Funny)
Re:Conspiracy Theory (Score:5, Funny)
Since you don't tell what goup it is, I'll have to guess. The fact that you post as AC and finally decided not to post it anyway strongly suggests you actually meant
Yes, that makes sense. After all, the slashdot crowd is well known of killing web servers (the so-called slashdot effect). They use a site tarned as "news for nerds, stuff that matters" to efficiently communicate the targeted servers for the DDoS attacks. It's only a logical next step from killing websites to killing satellites. Therefore everyone on slashdot is suspect. Oh, wait
Re:Conspiracy Theory (Score:3, Funny)
Re:Conspiracy Theory (Score:3, Informative)
Using a missile (like the old American ASAT program) would be more feasible.
Correct my physics! (Score:2)
I know that the US military have done semi-successful trials of this sort of anti-satellite technology so it must be feasible.
Playing with some numbers gives me this however:
Height of Satellite: 35,000km.
Powerful Laser peak pulse: 250,000w.
Power of laser on reaching satellite =
2.5x10^5 / (3.5x10^7)^2
2.0x10^-9 watts.
Fractions of milliwatts does not sound much to me, but pulsing hundreds of times per second, and kept up for a few minutes would start to heat things up yes? How fast can a satel
Re:Correct my physics! (Score:3, Interesting)
Re:Correct my physics! (Score:3, Informative)
Your calculation would be right if
a) the laser had an opening angle of 45 degrees (so radius of covered area equals distance of light),
b) the satellite had a cross section of exactly 1 square meter and
c) there would be vacuum between you and the satellite.
Now b is not impossible, but a would imply a rather badly focused beam. OTOH c would imply reduced power.
According to
Re:Correct my physics! (Score:2)
Errr ... I should actually have used the review button.
This sentence is obviously missing something. It should read:
That is, a 2.5 megawatt laser from the surface of earth would generate the same energy flux at the satellite as a 80W lightbulb would from a distance of 1 meter.
Also in the previous sentence, s/80W light bulb/80W light bulb at the distance of 1 meter/.
Ah, and I just noticed that I for
Re:Correct my physics! (Score:2)
That is, a 2.5 megawatt laser from the surface of earth would generate the same energy flux at the satellite as a 80W lightbulb would from a distance of 1 meter..
The nice thing about admitting your ignorance publicly, is that you have to do it less often as you go on. Thanks to those who've explained how to work it out.
It's looking pretty darn unlikely then that anyone even could have targeted a satelite with such a weapon. I was never suggesting that this had occured, but I remembered the US militar
Re:Correct my physics! (Score:2)
Assuming that a laser beam is sufficiently well focused to cover no more than the area of the satellite, and that the atmosphere makes no difference, the full 250kW will be delivered to the satellite. Both assumptions are questionable of course.
Re:Correct my physics! (Score:3, Informative)
Correct my physics!
Ok, I'll give it a go. Lasers are not point sources - the formula you used is for an isotropic radiator, not a beam source. You'd need to know the divergence of the laser to calculate the power/m2 at the satellite. Also, your peak pulse power is off by about a factor of 10-20 (or more...)
Say the beam half-angle divergence of your 250 kW laser is 1 milliradian (mrad) (pretty crappy). At 35,000 km, the beam will be at least 35*tan(0.001)*2 = 70 km wide. That's only 65 uW/m2. Not even brig
Re:Conspiracy Theory (Score:2)
A laser will do just fine. On October 17, 1997, we fired a laser from White Sands at an unused Air Force satellite. We originally intended to blow it to bits with a laser blast but other countries asked us not to out of fear of us littering the satellite belt with more garbage. We did this 7 1/2 years ago. Around Nov 28, 1998 a flurry of articles appeared indicating that China was readying an anti-satellite laser, so theo
Re:Conspiracy Theory (Score:2)
The easiest method to ruin a satellite, in concept at least, is to simply burn it out with a targeted beam of microwaves. In this case, it's a communications satellite so you wont have any trouble knowing where it is. You point and turn the power on. Satellite says: "ARRGH! I'm blind!"
Alright, it's not an A-level physics project, but its far simpler than earth-to-orbit missiles and needing so little time to operate, you could be done long before anyone figured out what you were up to. You wouldn't even
Re:Conspiracy Theory (Score:2)
Re:Conspiracy Theory (Score:2, Funny)
2005.. year when bush went to war with china, in search of mystery satelite killing devices
Who are Intelsat? (Score:5, Informative)
Why link to wikipedia?? (Score:3, Insightful)
I'm honestly curious: why would you link to wikipedia instead of to Intelsat [intelsat.com] itself?
This came up in a discussion last week: someone had linked to a wikipedia entry for Tripwire (the company) instead of linking to Tripwire.com. Wouldn't it make more sense to get information directly from the source (and form one's own opinion) instead of reading the material at Wikipedia (which is essentially someone else's opinion)?
Comment removed (Score:4, Insightful)
Re:Why link to wikipedia?? (Score:4, Insightful)
A company's own website can't make that claim.
Re:Why link to wikipedia?? (Score:2, Insightful)
The problem is "anyone can edit" (Score:2)
Wikipedia is not "someone's opinion"; it is supposed to be neutral, and factual.
Yes, it is supposed to be neutral and factual, but the people doing the editing are not necessarily specialists; they don't even need to be particularly knowledgeable. "Anyone can edit", right? That's what it says here [wikipedia.org]. Without a decent vetting process, it is a bunch of people contributing to articles regardless of their qualification to do so.
I'm not saying Wikipedia is a bad idea. It's an interesting collaborative
Re:Why link to wikipedia?? (Score:2)
Yes, Wikipedia is supposed to be neutral and factual, but very often it isn't, and from what I've read more often than not it is someone's opinion. I've read a dozen or so Wikipedia articles on the industry I'm in that were obviously written by outsiders with strong opinions, rather than people who actualy have the facts. Fact-checking and vetting are two very good things that Wikipedia lacks. I don't blame Wikipedia
Re:Who are Intelsat? (Score:4, Funny)
Bermuda? And then anyone wonders that their satellites disappear?
Sunspot (Score:4, Insightful)
http://www.spaceweather.com/images2005/16jan05/mi
Re:Sunspot (Score:2)
Well I never heard it called *that* before....
Comment removed (Score:5, Informative)
Re:Sunspot (Score:2)
Satellite Took Kit - http://www.stk.com [stk.com]
Re:Sunspot (Score:2)
Re:Sunspot (Score:2)
Sunspots (Score:3, Funny)
Danger, Danger IS-804!
Re:Sunspot (Score:2)
Hey, I tapped her on the head. What more could I do?
Maybe the other one called ? (Score:3, Funny)
sigh (Score:2, Funny)
Gratuitously Off-Topic... (Score:3, Interesting)
New Titan panorama from Huygens! [esa.int] Complete with a worryingly Earth-like 'coastline' - I don't think anyone's decided if the dark areas actually contain any liquid or not, but still utterly intriguing.
Oh, and now back to our scheduled broadcast. Satellite losses, not good. Big investment and all that, and long lead-time to launching replacements. Whatever!
Re:Gratuitously Off-Topic... (Score:3, Interesting)
His mosaics [lyle.org]
Re:Gratuitously Off-Topic... (Score:2)
Re:Gratuitously Off-Topic... (Score:2)
Ooh - hadn't seen those, thanks!
Definitely in take-with-large-pinch-of-salt territory, but perhaps an indication of what's officially to come. I imagine most of the real Huygens investigators are still nursing terrible hangovers, to be honest...
I for one . . . Nah, no I don't (Score:3, Funny)
I'm safe, right?
RIGHT?!
Run for the hills! AAHH!
*becomes another insane
Re:I for one . . . Nah, no I don't (Score:4, Funny)
FORD: No, nothing.
BARMAN: Well, I always though we were to lie down and put a
paper bag over our head or something.
FORD: If you like, yes.
BARMAN: Well, will that help?
FORD: No. Excuse me, I've got to find my friend.
Re:I for one . . . Nah, no I don't (Score:2)
You have died.
(From the game [bbc.co.uk], of course).
Cause? (Score:3, Interesting)
Re:Cause? (Score:3, Insightful)
Perhaps they should have used AMDsat (Score:5, Funny)
Possible Reasons for satellite loss (Score:3, Funny)
I'd bet on 1 or 2, 3 is an outside possibility, and 4 the result of eating cold pizza for breakfast. It's worth noting that (as near as I can tell from SpaceWeather.com [spaceweather.com], there were no solar flares when the second satellite was lost. So if the satellite was lost to a design flaw, at least it's not due to poor protection from solar flares.
Re:Possible Reasons for satellite loss (Score:2)
Re:Possible Reasons for satellite loss (Score:3, Interesting)
I got asked by a customer recently how come satellites can stay up there for 20+ years without failure and their PC can blow a power supply after 3 months of use. I said "Your power supply didn't cost 3 million dollars."
"Oh."
Re:Possible Reasons for satellite loss (Score:4, Informative)
Space bats, however, would have to have radar or lidar because sound cannot travel in space.
Re:Possible Reasons for satellite loss (Score:2)
You bring up a good point. But when you lose two in a short period of time, the first thing you ask is if there is a common flaw that will then take out more of the same series of satellites. Even one-off items can share history, basic design and operating procedures.
I put bad luck first because bad things tend to cluster. Of course they do - if they were spaced out in time at regular intervals, t
Poll options (Score:5, Funny)
1) Solar Flux
2) Those darn Russians
3) Sensor installed upside down
4) Kids with laser pointers
5) Meteorite
6) Tax purposes
7) Unfriendly UFO
8) Overheating
9) Autodestruct after two-weeks of reruns
Re:Poll options (Score:2)
Re:Poll options (Score:2)
Re:Poll options (Score:2)
10) Microsoft.
Re:Poll options (Score:2)
-1 Obvious
Lost due solar storm?! (Score:2)
read more [arrl.org] in news: [spaceref.com]
The large and dynamic active sunspot region, numbered by NOAA as Region 720, has produced several strong solar events. Five large solar flares produced moderate (R2) to strong (R3) radio blackouts since 15 January. The largest of these solar eruptions, an X3.8 on the GOES-12 x-ray sensor, occurred today at 17/0659 UTC (near local midnight MST). Short-wave radio communications through the sunlit hemisphere of Earth experie
Probably not... (Score:2)
Re:Lost due solar storm?! (Score:5, Informative)
There don't appear to have been any warnings on the 14th. It's unlikely it was fried by a solar flare.
Another satellite down? (Score:4, Funny)
Just a moment while I get my old PowerBook so I can upload the virus to the alien ship.
Bastards keep trying to take them over so they can communicate around the Earth (they traveled like 6 million light-years to get here and they didn't know the Earth was round?).
Does this affect my broadband connection? Noooo. I don't even know why I bother...
Re:Another satellite down? (Score:2)
How about JCSAT-1B? (Score:3, Interesting)
Re:How about JCSAT-1B? (Score:2)
This picture just in... (Score:4, Funny)
Re:This picture just in... (Score:3, Interesting)
Found another possible reason the satellites died (Score:3, Interesting)
For those of us who moved out of our parent's basement, it's a far too-well known phenomenon.
Re:Found another possible reason the satellites di (Score:3, Interesting)
"Under the terms of the Transaction Agreement and Plan of Amalgamation for the sale of Intelsat dated August 16, 2004, among Intelsat, Ltd., Intelsat (Bermuda), Ltd., Zeus Holdings Limited (Zeus Holdings), Zeus Merger One Limited and Zeus Merger Two Limited, the total loss of the IS-804 satellite gives Zeus Holdings the right to not consummate the acquisition of Intelsat. Zeus Holdings has advised Intelsat that it is evaluating the impact of th
Ooops! (Score:2, Funny)
Re:Ooops! (Score:2)
IntelSat's adoption of a MS Java-based
ground control system (from Lockheed M&DS).
The WinXP platforms have been upgraded to
SP2 without their IT security officer's
approval. During the brief time that the
computers were exposed to MS Update on the
internet, they were compromised.
A consortium of the Russian mob and the
North Koreans (AKA SPECTRE) are now trying
to blackmail IntelSat/Lockheed, one comm
satellite at a time. Right now they are
only shutting them down, but t
Evil Accountants? (Score:3, Interesting)
Comment removed (Score:4, Informative)
Re:Evil Accountants? (Score:3, Funny)
Intelsat exec: This is how much it will cost - take it or leave it.
Asian sat bandwidth buyer: Eeek!
Where to look (Score:5, Funny)
Re:Where to look (Score:2)
Anomaly They Wish (Score:2)
anomaly - Deviation or departure from the normal or common order, form, or rule.
Clearly this is becoming, for them, the rule.
James Bond said... (Score:2, Funny)
More than one satellite has failed recently (Score:2, Informative)
Also, I'm surprised that I don't see more
The ultimate poison pill (Score:3, Insightful)
Could it be this is their way of getting out of the acquisition of Intelsat by Zeus Holdings? Two satellite failures in about 3 months time is a pretty high failure rate.
Or, I wonder if it could be the tin whiskers reported earlier causing unexpected power failures.
Sorry to be so picky but.. (Score:2)
They were considered a loss because they malfunctioned and are no longer usable. They weren't "lost in space". Intelsat still knows exactly where they are.
Outsourcing bid (Score:4, Funny)
Dr. Smith, I presume? (Score:2)
Dr. Smith strikes again... [lostinspacetv.com]
Loss of satellite cuts Antarctic communications (Score:2, Informative)
Story here. [nzherald.co.nz]
Re:precursor to attack (Score:2)
Re:Obligatory Red October Reference... (Score:2)
When's the last time you saw him? He'll probably turn up somewhere. I lost my car keys once and I found them in my winter coat pocket.