Possible satellite collision on Thursday night | |
Anonymous Coward User ID: 79472583 Brazil 10/13/2020 10:38 PM Report Abusive Post Report Copyright Violation | |
Reality420 User ID: 49477262 United States 10/13/2020 11:01 PM Report Abusive Post Report Copyright Violation | It wouldn't matter if they collided over New York City. The debris doesn't just stop and drop straight down. That's not how this works. Interesting. 5 stars, Mutt. Not falling straight down after a collision at an altitude of 550+ miles... Something about conservation of momentum... /sarc. . The last thing we need is another cloud of debris on a slow path to decay and reentry jeopardizing other flights. . Have fun. Reality. |
sunwatcher
User ID: 79467197 Brazil 10/13/2020 11:01 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 78239842 United States 10/13/2020 11:20 PM Report Abusive Post Report Copyright Violation | |
South Central
User ID: 72534012 United States 10/13/2020 11:23 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 68486479 United States 10/13/2020 11:25 PM Report Abusive Post Report Copyright Violation | |
Maurice McMurdo
User ID: 76672649 United States 10/13/2020 11:35 PM Report Abusive Post Report Copyright Violation | Hey Astro a year or so ago I was at work and it was about 4:00 in the morning and I was outside. I happened to look straight above me just as the prettiest green ball of fire flew over my head and across the sky. It doesn't even seem real it happened so fast. What was the green fireball if you don't mind me asking? I'm assuming you do, I'm sorry if I'm being presumptuous. Last Edited by Maurice McMurdo on 10/13/2020 11:36 PM So doom off? |
Astromut
(OP) Senior Forum Moderator 10/13/2020 11:36 PM Report Abusive Post Report Copyright Violation | |
Patagonians
User ID: 77341662 Argentina 10/13/2020 11:42 PM Report Abusive Post Report Copyright Violation | |
Bill Wick
User ID: 76797869 United States 10/13/2020 11:42 PM Report Abusive Post Report Copyright Violation | Another piece of Chinese junk from a couple of days ago: Quoting: Bob the Builder https://twitter.com/_/status/1315468374760067074 I try not to follow Twitter links, so I'm hoping it's a picture of a Biden. Freelance Superhero with only a minor personality disorder. All my other personalities are just fine, thanks. Ignore him, no we aren't. Question: "What is the most important thing in your life?" Answer: "NOT BEING STUPID" - Jordan Peterson |
Astromut
(OP) Senior Forum Moderator 10/13/2020 11:44 PM Report Abusive Post Report Copyright Violation | Did they have to pass through the Van Allen belt? If so how were they able to do that since I just watched a video from NASA that stated they are just now able to pass through it (5 years ago)? Just curious. EFT-1 flew through a much more intense portion of the belts for longer than Apollo did. I've explained this for years now. Here is a plot of how much radiation the astronauts would be expected to receive given Apollo 11's trajectory to the moon, one way. Apollo had an areal density equivalent to about 7~8 g/cm^2: [link to drive.google.com (secure)] Less than 1 rad each way, it's harmless, the trapped proton dose from the Van Allen belts is less than a tenth of a rad (so even with the Q factor discussed below, less than a rem of VAB radiation). By way of comparison, here is the dose you would receive in an Apollo capsule flying the same trajectory as Orion EFT-1's final orbit (though with a slightly higher perigee, SPENVIS won't let you calculate trajectories that go through the atmosphere): [link to drive.google.com (secure)] Here's a map of the orbit: [link to drive.google.com (secure)] Nearly 10 rads, with the dose almost entirely made up of radiation trapped in the belt. The Q factor on that could be as high as 10 ( [link to www.nrc.gov (secure)] ), so you could be looking at about 100 rem equivalent dose. At that dose with an acute exposure, you're looking at chromosome damage, reduction in white blood cell count, and the onset of radiation sickness within a few hours. Trajectory matters. Apollo's trajectory was not hazardous to the crew. Now can we stop derailing this thread by asking me questions I've debunked a thousand times to do with Apollo and having nothing at all to do with this thread? Last Edited by Astromut on 10/13/2020 11:44 PM |
Bill Wick
User ID: 76797869 United States 10/13/2020 11:44 PM Report Abusive Post Report Copyright Violation | They had skills in engineering, physics, and capitalization and punctuation. Ha Ha Ha. Yup, they did. You never will. Freelance Superhero with only a minor personality disorder. All my other personalities are just fine, thanks. Ignore him, no we aren't. Question: "What is the most important thing in your life?" Answer: "NOT BEING STUPID" - Jordan Peterson |
Astromut
(OP) Senior Forum Moderator 10/13/2020 11:46 PM Report Abusive Post Report Copyright Violation | |
Astromut
(OP) Senior Forum Moderator 10/13/2020 11:47 PM Report Abusive Post Report Copyright Violation | It wouldn't matter if they collided over New York City. The debris doesn't just stop and drop straight down. That's not how this works. Interesting. 5 stars, Mutt. Not falling straight down after a collision at an altitude of 550+ miles... Something about conservation of momentum... /sarc. . The last thing we need is another cloud of debris on a slow path to decay and reentry jeopardizing other flights. . Have fun. Reality. Yeah a couple thousand kilograms of debris doesn't sound so great. |
CDC ATL
User ID: 78885608 United States 10/13/2020 11:48 PM Report Abusive Post Report Copyright Violation | That's not how this works. Just because they collide doesn't mean the debris all rains down at the sub satellite point of the collision. In fact much of it will remain in orbit for years to come if that were to happen and pose a collision threat to other low orbit satellites. Some of it may end up on an immediate suborbital trajectory, but that does not mean it automatically lands in Antarctica. Some of it could even re-enter half an orbit later on the other side of the world. As if there wasn't enough junk floating around up there already. LOL China to start trash dumps in space per cnnpms Jk "Tell me and I forget. Teach me and I remember. Involve me and I learn." |
Anonymous Coward User ID: 79476558 Canada 10/13/2020 11:52 PM Report Abusive Post Report Copyright Violation | https://twitter.com/_/status/1316147305125490694 Just a heads up. Both are defunct, one is a Chinese rocket stage from 2009, the other is an old Russian satellite launched in 1989. Commie trash threatens us once again. Exactly... What's the odds that this 1989 Russian Satellite have a nuclear reactor on board. Those Crazy Russians like to put nukes on everything... Imagine the nuke reactor going critical as it smashes into the Chinese booster rocket. Imagine that reactor striking the Earth and raining down nuclear debris... There's no way yet to place a nuclear reactor in space because they need water, all nuclear power plants are located near sea shore ,lakes or rivers. Nuclear reactors are actually working like any other power plant,using coal, gas, oil,,, but is using the thermal energy emitted by nuclear reaction to heat water turn it into steams expands in a turbine which powers the generator. We split to atom but still use it to boil water; this is why nuclear power was only installed on ships ,aircraft carriers, subs, Russian icebreakers. But you are right , radioisotope thermoelectric generator using radioactive plutonium were installed on early satellites and still used on space probes that move to far away from Sun to use solar panels. Like Voyager,Cassini and even Appolo mission, one of this crashed in pacific with Apollo 13. But these power cells are not using large amount of radioactive material, i remember reading that this kind of long lasting batteries with plutonium were used in heart peacemakers and implanted in many patients back in 70s, until they figure out that after the patient dies would turn into a dirty bomb during cremation. |
Astromut
(OP) Senior Forum Moderator 10/14/2020 12:00 AM Report Abusive Post Report Copyright Violation | https://twitter.com/_/status/1316147305125490694 Just a heads up. Both are defunct, one is a Chinese rocket stage from 2009, the other is an old Russian satellite launched in 1989. Commie trash threatens us once again. Exactly... What's the odds that this 1989 Russian Satellite have a nuclear reactor on board. Those Crazy Russians like to put nukes on everything... Imagine the nuke reactor going critical as it smashes into the Chinese booster rocket. Imagine that reactor striking the Earth and raining down nuclear debris... There's no way yet to place a nuclear reactor in space because they need water, Not exactly correct. In fact, the Soviet Union accidentally dropped one on Canada. [link to en.m.wikipedia.org (secure)] |
panther0621
User ID: 27944307 United States 10/14/2020 12:15 AM Report Abusive Post Report Copyright Violation | That's not how this works. Just because they collide doesn't mean the debris all rains down at the sub satellite point of the collision. In fact much of it will remain in orbit for years to come if that were to happen and pose a collision threat to other low orbit satellites. Some of it may end up on an immediate suborbital trajectory, but that does not mean it automatically lands in Antarctica. Some of it could even re-enter half an orbit later on the other side of the world. That's not how this works. Just because they collide doesn't mean the debris all rains down at the sub satellite point of the collision. In fact much of it will remain in orbit for years to come if that were to happen and pose a collision threat to other low orbit satellites. Some of it may end up on an immediate suborbital trajectory, but that does not mean it automatically lands in Antarctica. Some of it could even re-enter half an orbit later on the other side of the world. Kessler Syndrome...... We would be grounded for a long damned time. Just an article in the New Yorker about this. You got to read everything to get the truth. Talked about the problems and how NASA really doesn't care. ESA is doing more about trying to clean things up. what height would these projectiles after explosion hang out at for a bit Astro ? anything else going to get hit due to this ? |
Anonymous Coward User ID: 79421362 New Zealand 10/14/2020 12:23 AM Report Abusive Post Report Copyright Violation | Quoting: Astromut Learn something new every day. So it looks likely that one of the satellites will be 'visible' to the KSR pre close approach and the other post close approach. Interesting |
Anonymous Coward User ID: 69446511 United States 10/14/2020 12:46 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 79456022 Romania 10/14/2020 12:53 AM Report Abusive Post Report Copyright Violation | anyway long story short if the 2 satellites collide , they will produce a lot of debrie that could hit other satellites and so on eventually all satellites will be down and we will have no more satellite communication |
Midnight Oil
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mlabors
User ID: 78224333 United States 10/14/2020 12:57 AM Report Abusive Post Report Copyright Violation | https://twitter.com/_/status/1316147305125490694 Just a heads up. Both are defunct, one is a Chinese rocket stage from 2009, the other is an old Russian satellite launched in 1989. Without a way to clean this stuff up, if they start colliding with each other, they will take out functioning satellites. |
Anonymous Coward User ID: 65853998 United States 10/14/2020 01:04 AM Report Abusive Post Report Copyright Violation | |
Storm2come
Natural Law always wins in the end User ID: 24761162 United States 10/14/2020 03:26 AM Report Abusive Post Report Copyright Violation | to follow on Thursday Thread: Partial crustal shift and the Sun / earth , Updated Catastrophe video pg. 114 Thread: Om frequencies, which one works for you?? If someone produces wealth and money, you have no right to tell them how to spend it.- Ayn Rand |
Anonymous Coward User ID: 79156899 United States 10/14/2020 03:57 AM Report Abusive Post Report Copyright Violation | |
The Gent
User ID: 32498369 United Kingdom 10/14/2020 04:23 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 78650571 United States 10/14/2020 05:01 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 79364910 Netherlands 10/14/2020 05:12 AM Report Abusive Post Report Copyright Violation | Apart from some apparatus falling from a high altitude balloon, don't believe a word of it you feel gullible falling for the rona hoax, wait until you discover you fell for the spinning ball hoax indeed, 500 years of satanic illusion you are under mind control, you were brain washed from birth |
Soundman
User ID: 40546062 United States 10/14/2020 05:29 AM Report Abusive Post Report Copyright Violation | i remember hearing about skylab crashing down as a kid, Quoting: Grove Street i dont even remember where i heard it as there were three channels at the tine and no internet, and i didnt watch much tv as a kid.. but i remember thinking it was going going to crash out in our yard and i kept looking for it.. i guess i was 6 at the time,.i just looked it up.. still have no idea how i found about it at that age and why i thought it would be cool crashing down in the creek behind my house anyway. keep us posted As a kid my dad and a few neighborhood friends watched Skylab fly over my house a few days before the crash. It was hard to sleep those next few nights not knowing if it would fall on my house... Soundman |