tater Posted May 24, 2019 Share Posted May 24, 2019 Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted May 25, 2019 Share Posted May 25, 2019 Now that's impressive! I need to see that! Unfortunately it is probably going to be cloudy for a while and we are currently under a tornado watch. Also, both of the satellite tracking websites I visited don't list Starlink yet. Quote Link to comment Share on other sites More sharing options...
cubinator Posted May 25, 2019 Share Posted May 25, 2019 1 hour ago, Ultimate Steve said: Now that's impressive! I need to see that! Unfortunately it is probably going to be cloudy for a while and we are currently under a tornado watch. Also, both of the satellite tracking websites I visited don't list Starlink yet. They're in darkness while they pass over N. America, still. Next time, maybe. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted May 25, 2019 Share Posted May 25, 2019 Always wondered this myself... Quote Link to comment Share on other sites More sharing options...
Geonovast Posted May 25, 2019 Share Posted May 25, 2019 I've noticed that on every launch I've watched. But since everyone was always saying everything was nominal, I figured it was normal. Quote Link to comment Share on other sites More sharing options...
StrandedonEarth Posted May 25, 2019 Share Posted May 25, 2019 16 minutes ago, CatastrophicFailure said: Always wondered this myself... Entrained exhaust gases were also visible around the first stage of Saturn V: Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted May 25, 2019 Share Posted May 25, 2019 32 minutes ago, cubinator said: They're in darkness while they pass over N. America, still. Next time, maybe. Would they be visible at 10:30 given a sunset time of 8:26? There's a good pass at ~45 degrees elevation for me. Quote Link to comment Share on other sites More sharing options...
tater Posted May 25, 2019 Share Posted May 25, 2019 Also shuttle. Bottom of main tank got really scorched every time. High pressure at the front, low at the back, except the exhaust itself. Just now, Ultimate Steve said: Would they be visible at 10:30 given a sunset time of 8:26? There's a good pass at ~45 degrees elevation for me. What software is showing the passes right now? Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted May 25, 2019 Share Posted May 25, 2019 Just now, tater said: Also shuttle. Bottom of main tank got really scorched every time. High pressure at the front, low at the back, except the exhaust itself. What software is showing the passes right now? Two line elements shown here: http://www.satobs.org/seesat/May-2019/0207.html Google "TLE converter," click first result, plug in lat/long, the two numbers, click load TLE, scroll down and click the 24 hour button. Quote Link to comment Share on other sites More sharing options...
tater Posted May 25, 2019 Share Posted May 25, 2019 Yeah, I wanted to load the TLE and plot them. Was hoping an online viewer like Heavens Above would have it... OK, I got the app on my computer (SatObserver) to load the TLE. I tried earlier right after I posted the tweet, and it didn't seem to load, and closed the app. Brought it back up, and it was already selected. Might see the next pass, actually. Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted May 25, 2019 Share Posted May 25, 2019 Back of the envelope equations suggest that if the sats were directly overhead, they would be visible up to a bit past an hour after sunset. However, they aren't going to be directly overhead, but that math gets complicated. Two hours is probably a bit much to see them tonight, but if the clouds clear up I will try! Quote Link to comment Share on other sites More sharing options...
ThatGuyWithALongUsername Posted May 25, 2019 Share Posted May 25, 2019 (edited) Someone on Twitter had an interesting thought that is quite relevant here- could this satellite constellation bring the next generation of Iridium flares (Starlink flares, I guess)? I mean, I guess we don't really know the reflective qualities of these spacecraft, do we? Edited May 25, 2019 by ThatGuyWithALongUsername Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted May 25, 2019 Share Posted May 25, 2019 2 minutes ago, ThatGuyWithALongUsername said: Someone on Twitterhad an interesting thought that is quite relevant here- could this satellite constellation bring the next generation of Iridium flares (Starlink flares, I guess)? I mean, I guess we don't really know the reflective qualities of these spacecraft, do we? Not yet. Had a tornado watch today, with warnings close by, so clouds prob won't clear up. Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted May 25, 2019 Share Posted May 25, 2019 No dice, clouds were only thin enough to see a few of the brightest stars. And the lightning, of course. Quote Link to comment Share on other sites More sharing options...
tater Posted May 25, 2019 Share Posted May 25, 2019 I forgot to set an alarm. Quote Link to comment Share on other sites More sharing options...
Shpaget Posted May 25, 2019 Share Posted May 25, 2019 6 hours ago, ThatGuyWithALongUsername said: Someone on Twitterhad an interesting thought that is quite relevant here- could this satellite constellation bring the next generation of Iridium flares (Starlink flares, I guess)? I mean, I guess we don't really know the reflective qualities of these spacecraft, do we? I'm more concerned what this constellation is going to do to long exposure wide angle night sky photography. They might paint a massive grid on every photo. I expect some uproar in the Cloudy Nights community. Quote Link to comment Share on other sites More sharing options...
Reactordrone Posted May 25, 2019 Share Posted May 25, 2019 1 hour ago, Shpaget said: I'm more concerned what this constellation is going to do to long exposure wide angle night sky photography. They might paint a massive grid on every photo. I expect some uproar in the Cloudy Nights community. As long as it's not too close to dusk or dawn they shouldn't be visible. Quote Link to comment Share on other sites More sharing options...
tater Posted May 25, 2019 Share Posted May 25, 2019 Look at the recovered fairings: No acoustic mitigation (foam). Foam absorbs water. Easier to reuse? (HT: NSF thread) Quote Link to comment Share on other sites More sharing options...
Brotoro Posted May 25, 2019 Share Posted May 25, 2019 The fairings look odd...as if they are metallic. Quote Link to comment Share on other sites More sharing options...
tater Posted May 25, 2019 Share Posted May 25, 2019 20 minutes ago, Brotoro said: The fairings look odd...as if they are metallic. The nose is. They've been adding shiny metal for a while now. Quote Link to comment Share on other sites More sharing options...
tater Posted May 25, 2019 Share Posted May 25, 2019 Quote Link to comment Share on other sites More sharing options...
StrandedonEarth Posted May 25, 2019 Share Posted May 25, 2019 26 minutes ago, tater said: The nose is. They've been adding shiny metal for a while now. I hadn't noticed that. Thermal considerations? Quote Link to comment Share on other sites More sharing options...
tater Posted May 25, 2019 Share Posted May 25, 2019 4 minutes ago, StrandedonEarth said: I hadn't noticed that. Thermal considerations? Presumably. I haven't checked which launches have had them, and which have not. perhaps it relates to recovery (those with recovery hardware have it?). Quote Link to comment Share on other sites More sharing options...
tater Posted May 25, 2019 Share Posted May 25, 2019 Quote Link to comment Share on other sites More sharing options...
tater Posted May 25, 2019 Share Posted May 25, 2019 Flightclub now imports TLEs: https://www2.flightclub.io/dashboard http://www.satobs.org/seesat/May-2019/0228.html Quote Link to comment Share on other sites More sharing options...
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