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Found 3 results

  1. Hello All. I have accepted a sun flyby contract and I'm having a small issue. The game does not allow you to set the sun as a target, therefore, I am not sure how to aim for it. This is my first attempt at leaving Kerbin space before accepting the explore Duna contract. Any tips?
  2. Hi, I have the Duna 3 Flyby contract and I have no idea when to start my trip to Eve. I plan to fly by Eve and Ike before orbiting Duna. This is my 1st interplanetary trip, and I plan on using the Kassandra Spacecraft by @H2O. What angles should I have Kerbin, Eve and Duna? How long should I stay at Duna? Is there an easy way to work this out? Current date is year 3, day 70. Thanks, Update Firstly let me say, many thanks to you guys. The tips you gave me helped me work out that I needed more information! I found the KSP Trajectory Optimization Tool by @Arrowstar to be quite helpful as it has a multi-flyby plotter (had to switch to Earth time though). It has given me lots of information to digest, however I'm not sure how to turn the information that I have into an actual maneuver! The Delta V and Departure/Arrival dates information is particularly helpful, it looks like I can get from Kerbin to Eve for 1377m/s and then do a 515m/s correction burn at Eve, giving me around 1200m/s left in the transfer stage to capture at Duna. Kerbin Departure Date = Year 2, Day 283 06:54:04.673 (55925644.673 sec UT) Eve Arrival Date = Year 2, Day 334 20:28:13.330 (60380893.330 sec UT) Duna Arrival Date = Year 3, Day 23 17:42:52.033 (65036572.033 sec UT) Burn Information to Depart Kerbin --------------------------------------------- Total Delta-V = 1.377 km/s Prograde Delta-V = 538.875 m/s Orbit Normal Delta-V = -1266.975 m/s Radial Delta-V = 0.000 m/s --------------------- Burn True Anomaly = 358.770 deg --------------------------------------------- Burn Information to Depart Eve --------------------------------------------- Total Delta-V = 0.515 km/s Prograde Delta-V = 515.340 m/s Orbit Normal Delta-V = -0.000 m/s Radial Delta-V = 0.000 m/s --------------------- Burn True Anomaly = 0.000 deg --------------------------------------------- The problem I have now is working out when in my 750km parking orbit I need to do the Initial burn. This is the rest of the information it has given me. Hyperbolic Departure & Flyby Orbits Hyperbolic Departure Orbit from Kerbin --------------------------------------------- Semi-major Axis = -3452.976 km Eccentricity = 1.391 Inclination = 30.437 deg Right Ascension of AN = 178.770 deg Argument of Periapse = 180.000 deg --------------------------------------------- Inbound Hyperbolic Flyby Orbit to Eve --------------------------------------------- Semi-major Axis = -4725.402 km Eccentricity = 2.3764 Inclination = 28.615 deg Right Ascension of AN = 97.408 deg Argument of Periapse = 310.331 deg Periapse Radius = 6503.888 km --------------------------------------------- Outbound Hyperbolic Flyby Orbit from Eve --------------------------------------------- Semi-major Axis = -1984.515 km Eccentricity = 4.2773 Inclination = 28.615 deg Right Ascension of AN = 97.408 deg Argument of Periapse = 310.331 deg Periapse Radius = 6503.888 km --------------------------------------------- Inbound Hyperbolic Orbit to Duna --------------------------------------------- Hyperbolic Excess Vel. = 1.607 km/s Sun-Centric Transfer Orbits Phase 1 Transfer Orbit (Kerbin -> Eve) --------------------------------------------- Semi-major Axis = 11546276.670 km Eccentricity = 0.18242 Inclination = 2.426 deg Right Ascension of AN = 27.461 deg Argument of Periapse = 10.692 deg Period = 7199748.9136 sec Departure True Anomaly = 169.308 deg Arrival True Anomaly = 39.623 deg --------------------------------------------- Phase 2 Transfer Orbit (Eve -> Duna) --------------------------------------------- Semi-major Axis = 15394858.102 km Eccentricity = 0.36852 Inclination = 4.649 deg Right Ascension of AN = 54.115 deg Argument of Periapse = 10.917 deg Period = 11084546.9362 sec Departure True Anomaly = 12.788 deg Arrival True Anomaly = 168.350 deg ---------------------------------------------
  3. I want to do the Mariner-10 mission (flyby of Eve and then Moho) from Historical Missions contract pack, but I don't know how to find the best time or orbit for a transfer. I did see the flyby finder for RSS, but I'm not using RSS. I could just orbit Eve and then transfer from there, but I want to do an actual gravity assist trajectory.