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Found 4 results

  1. Hi folks. New to the Forum, hello all! I've been trying for no good reason other than shiggles to get a Starlink type constellation in orbit. Mechjeb2 helps me with the launch timing, orbital plane etc, but I'm having a lot of trouble with distributing each satellite throughout that orbital plane. I start with a launch that's circularized 20km low and then dispense the satellites one by one and orbit raise to 350 as it gets close to the correct location for each bird. Anyway, the point is that keeping a large constellation aligned requires a lot of management - tweaks to apo and peri to keep separation and to plane to etc - can anyone suggest mods that might help? I've been looking for a 'ground control mod' that could extend the tracking screen but no joy so far so it's manually switch to each satellite at the moment :-) Image attached with the 'net for one plane of approx 32 birds. I'm trying for 15 minute separation of planes - it's a lot of birds in the air!
  2. DOWNLOAD SPACEDOCK INSTALLATION 1.Remove the older versions of this mod. 2.Put all contents of "GameData" into your "KSP/GameData"folder. 3.Install KerbalJointReinforcement (Depends) by Rudolf Meier 4.Install DistantObjectEnhancement (Optional) by Rubber Ducky FAQ Q:Why are my Starlink satellites tossing around like noodles? A:This problem cannot be solved for the time being.And,install "KerbalJointReinforcement" can Solve the problem. Q:How to fit the original game size? A:Please delete "patches/StarLinkSatellite_KSPsize_Patch.cfg.RemoveMeToKSPSize" File suffix of ".RemoveMeToKSPSize" Q:How to return the real size? A:Please Add"patches/StarLinkSatellite_KSPsize_Patch.cfg" File suffix of ".RemoveMeToKSPSize", or delete this fils. Waiting for more questions... LICENSE StarLink Satellite Pack by Akino is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. MEDIA Review by @Kottabos CHANGELOG CREDITS @Mecripp Thank him for a series of help for this mod. FUTURE PLANS Remake the Starlink model to make it more like real Starlink satellite. Make the ride-sharing adaptors.The demo version is expected to be available next week.
  3. From wiki. Phase Orbit shells (km) Number of satellites Inclination (degrees) Half size contractual completion time Full size contractual completion time Current completion (23 May 2019) 1 550 1,584 53 March 2024 March 2027 62[43] 1,110 1,600 53.8 0 1,130 400 74 0 1,275 375 81 0 1,325 450 70 0 2 335.9 2,493 42 November 2024 November 2027 0 340.8 2,478 48 0 345.6 2,547 53 0 So, they distinguish 335, 340, and 345 km orbit, and as well 1110 and 1130. They also distinguish 53° and 53.8°, i.e. 0.2° = 12' ~= 12 nm ~= 22 km. So, this gives us a mesh step ~= 5..20 km in their sat pattern. Total area of a sphere of radius: 330 km = 4 * pi * (6370+330)2 ~= 564 mln km2 1330 km = 4 * pi * (6370+1330)2 ~= 745 mln km2 So, 564*106 * ((345+5) - (335-5)) / 7500 = 1.5 mln km3/sat in 340 km orbits. 745*106 * 20 / 4400 = 3.4 mln km3/sat in higher than ISS orbits. A 340 km orbit length = 2 * pi * (6730 + 340) ~= 44 400 km. A 480 km orbit length (ISS) = 2 * pi * (6730 + 480) ~= 45 300 km. So, say, our orbit is ~45 000 km long. Say, our cross-section area is 20 x 20 m ~400 m2 = 4*10-4 km2. (A large sat, a spaceship + upper stage, or else). Total volume of the orbital torus = 45 000 * 4 * 10-4 ~= 18 km3. So, the probability of a sat crossing our way is roughly: ~18 / 1.5*106 ~=1.2 * 10-5, 1 chance per ~80 000 orbital turns in LEO. ~18 / 3*106 ~= 0.6 * 10-5, 1 chance per ~160 000 orbital turns in typical OS 480 km orbit (ISS, Mir), when the sats orbit get significantly decayed. 1 day = 24 / 1.5 = 16 turns. Chances to hit a sat spending in 340 km orbit a day = 1-(1 - 1.2*10-5)16 = 0.0002 = 1:5000 a week = 1-(1 - 0.0002)7 = 0.0014 = 1:700 a month = 1-(1 - 0.0002)30 = 0.006 = 1:160 a year = 1-(1 - 0.006)12 = 0.07 = 1:14 Chances to hit a decaying orbit sat spending in 480 km orbit a year = 1-(1 - 0.6*10-5)16*365 = 0.034 = 1:30 *** Say, a sat lifespan is ~15 years. This means that every year they should deliver ~1/15 of total sats amount = ~800 sats/year. Probably they are going to deorbit the failed sats, so ~800 sats are going to deorbit. But as a launch vehicles are ~0.98 reliable, and the sats to be deorbited are by definition out of service, we can presume that ~20% of sats will stay in orbit as garbage. So, +160 sats every year. Twenty years later there will be ~3000 additional dead sats plus to the initial amount. *** Plus kesslerization of this Say that 15 years long Starlink sat. Say, its cross-section is ~5 m2 (including the solar panel) Its orbital torus volume ~ 45 000 * 5*10-6 ~= 0.2 km3. At 1.5 mln km3/sat around, the probability to hit another Starlink sat is ~ 0.2/1.5*106 ~= 1.3*10-7 per turn. Per year = 1-(1-1.3*10-7)16*365 ~= 0.00076 = 1:1300. So, we can expect ~5..10 Starlink collisions per year. Every collision creates, say, 10 debris, so +several hundred objects per year. Of course, most of them will deorbit, but while deorbiting they can hit a Starlink sat in a lower shell. *** So, if the Starlink had been raised, 30-40 years later there will be no safe orbit below the radiation belts for anything bigger than a Starlink sat.
  4. The first one took several days for us to finally get predictions, and by that time they drifted apart and are obviously a lot less easy to see with naked eye right now. They're still relatively close, at least some parts of the "train". https://heavens-above.com/StarLink.aspx Post your observations here.
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