MaxwellsDemon Posted March 23, 2018 Share Posted March 23, 2018 (edited) I just realized that I had never watched a live docking before. Three questions... maybe n00b-level, but curiosity overrides... 1. On final approach, the [Kurs antenna?] of the station appeared to be vibrating/flickering. Really happened or a video artifact? 2. Just after contact, the docking camera appeared to slew around to the left (to the point where I wondered if docking had been unsuccessful). What was that? 3. I couldn't tell which port MS 08 docked at from the video feed... was it Pirs or Poisk? Space.com reports that it was Poisk. Edited March 23, 2018 by MaxwellsDemon Quote Link to comment Share on other sites More sharing options...
cubinator Posted March 23, 2018 Share Posted March 23, 2018 17 minutes ago, MaxwellsDemon said: 2. Just after contact, the docking camera appeared to slew around to the left (to the point where I wondered if docking had been unsuccessful). What was that? When the Soyuz first captures with the station, the only thing connecting the two is the little arm at the end of the nose. The spacecraft wobbles around for a minute as it settles into place (this was mentioned in the broadcast) and then pulls itself in to a hard mate. Quote Link to comment Share on other sites More sharing options...
MaxwellsDemon Posted March 23, 2018 Share Posted March 23, 2018 (edited) I had the sound off so my boss wouldn't think I was doing something other than work. I knew that about the docking procedure in theory, but I didn't realize the motion was so pronounced in reality... Edited March 23, 2018 by MaxwellsDemon Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted March 24, 2018 Share Posted March 24, 2018 7 hours ago, cubinator said: When the Soyuz first captures with the station, the only thing connecting the two is the little arm at the end of the nose. The spacecraft wobbles around for a minute as it settles into place (this was mentioned in the broadcast) and then pulls itself in to a hard mate. Videos here Quote Link to comment Share on other sites More sharing options...
PB666 Posted March 27, 2018 Share Posted March 27, 2018 http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/Sentinel-3/Sentinel-3B_launch_preparations_in_full_swing Quote Link to comment Share on other sites More sharing options...
tater Posted March 28, 2018 Author Share Posted March 28, 2018 Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted March 28, 2018 Share Posted March 28, 2018 2 hours ago, tater said: Which, as best as I can tell, says: On March 28, the Progress-MS-07 cargo vehicle was undocked with the International Space Station. The re-entry and splashdown of uncombusted fragments in the Pacific Ocean is expected on April 26. Quote Link to comment Share on other sites More sharing options...
tater Posted March 28, 2018 Author Share Posted March 28, 2018 On twitter itself, it offers a translation Quote Link to comment Share on other sites More sharing options...
tater Posted March 29, 2018 Author Share Posted March 29, 2018 (edited) tested parachute for Mars rover. Edited March 29, 2018 by tater Quote Link to comment Share on other sites More sharing options...
insert_name Posted March 29, 2018 Share Posted March 29, 2018 Is this that abomnination without any side boosters that claims to be a Soyuz? Quote Link to comment Share on other sites More sharing options...
Canopus Posted March 29, 2018 Share Posted March 29, 2018 6 minutes ago, insert_name said: Is this that abomnination without any side boosters that claims to be a Soyuz? Yes it is http://space.skyrocket.de/doc_lau_det/soyuz-2-1v.htm Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted March 29, 2018 Share Posted March 29, 2018 2 hours ago, tater said: tested parachute for Mars rover. Wait, I thought this was what the US was supposed to test today. When was this? I just flew the simulated launch of the Soyuz 2-1v mission. Will get it up in a few minutes. Quote Link to comment Share on other sites More sharing options...
tater Posted March 29, 2018 Author Share Posted March 29, 2018 ExoMars 2020. http://www.esa.int/Our_Activities/Space_Science/ExoMars/First_test_success_for_largest_Mars_mission_parachute Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted March 29, 2018 Share Posted March 29, 2018 How did they change gravity in settings? Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted March 29, 2018 Share Posted March 29, 2018 Here's my take on today's mystery-shrouded military launch: Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted March 30, 2018 Share Posted March 30, 2018 (edited) New Russian ICBM: Let's see here. Powder-charge-launched. Hypergolic, by exhaust plume color. Likely a two-stage, given the shock diamonds of the underexpanded engine. Single engine, too, so probably a GG or ORSC cycle. RD-275M, maybe? Ridiculously dangerous. Edited March 30, 2018 by sevenperforce Quote Link to comment Share on other sites More sharing options...
sh1pman Posted March 31, 2018 Share Posted March 31, 2018 41 minutes ago, sevenperforce said: Ridiculously dangerous. Well, yeah, hypergolics are toxic, but there’s just no better way to keep the rocket always ready for launch. SRBs are less efficient, and I’m not sure if they’re safer than hypergols. Maybe some kind of hybrid rocket booster could combine safety, propellant stability and efficiency, I dunno. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted March 31, 2018 Share Posted March 31, 2018 1 hour ago, sh1pman said: Well, yeah, hypergolics are toxic, but there’s just no better way to keep the rocket always ready for launch. SRBs are less efficient, and I’m not sure if they’re safer than hypergols. Maybe some kind of hybrid rocket booster could combine safety, propellant stability and efficiency, I dunno. I meant dangerous to the target. Quote Link to comment Share on other sites More sharing options...
Teilnehmer Posted March 31, 2018 Share Posted March 31, 2018 Why does it use a tiny first stage to lift the rocket above the ground before the main engine starting? Quote Link to comment Share on other sites More sharing options...
Canopus Posted March 31, 2018 Share Posted March 31, 2018 (edited) 32 minutes ago, Teilnehmer said: Why does it use a tiny first stage to lift the rocket above the ground before the main engine starting? It probably is launched by mortar, so this is just a protective cover for the engines. Atleast that is how it works on the Dnepr which is a former ICBM. Edited March 31, 2018 by Canopus Quote Link to comment Share on other sites More sharing options...
NSEP Posted March 31, 2018 Share Posted March 31, 2018 Hypergolics are the only options for Russian ICBM. Russia doesn't seem to have any experience with SRB's, let alone Hybrid Rockets. 8 hours ago, sh1pman said: SRBs are less efficient, and I’m not sure if they’re safer than hypergols. Well, SRB's don't produce toxic fumes, SRB's do risk accidental ignition on the ground but so does hypergolic. When it comes to the amount of safety hazards while fueling on the ground, Hypergolic propellant has more hazard than solid. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted March 31, 2018 Share Posted March 31, 2018 4 hours ago, Teilnehmer said: Why does it use a tiny first stage to lift the rocket above the ground before the main engine starting? Clearly they bought the DLC; that's a thrust plate. Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted March 31, 2018 Share Posted March 31, 2018 (edited) 13 hours ago, sevenperforce said: 15 hours ago, sh1pman said: Well, yeah, hypergolics are toxic, but there’s just no better way to keep the rocket always ready for launch. SRBs are less efficient, and I’m not sure if they’re safer than hypergols. Maybe some kind of hybrid rocket booster could combine safety, propellant stability and efficiency, I dunno. I meant dangerous to the target. KSP forum in a single phrase. 6 hours ago, NSEP said: Russia doesn't seem to have any experience with SRB's It has a lot of experience since 1960s, but hypergolics hystorically had better success. 6 hours ago, NSEP said: SRB's don't produce toxic fumes SRB is a fountain of hydrogen chloride and nitrogen oxides. And most of hypergolic ICBM/SLBM get fueled and packed into a hermetic container right in the plant. Also they need no refueling for 10 years and more. Edited March 31, 2018 by kerbiloid Quote Link to comment Share on other sites More sharing options...
NSEP Posted March 31, 2018 Share Posted March 31, 2018 5 minutes ago, kerbiloid said: It has a lot of experience since 1960s, but hypergolics hystorically had better success. Yeah, you don't see many solid rockets in Russia today, expect for fireworks and maybe ullage/seperation thrusters. Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted March 31, 2018 Share Posted March 31, 2018 (edited) 8 minutes ago, NSEP said: Yeah, you don't see many solid rockets in Russia today, expect for fireworks and maybe ullage/seperation thrusters. Several hundred RT-2PM Topol family (beginned in Korolev's bureaou as RT-2). SLBM Bulava (not sure if is being tested or already used). SLBM R-39 (retired several years ago) Almost all ballistic cruise missiles since late 1970s. Rocket trains (retired in 1990s) were equipped with solid fuel RT-23. Btw, ~300 RSD-10 were destroyed by launching, with no failure. Edited March 31, 2018 by kerbiloid Quote Link to comment Share on other sites More sharing options...
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