Contenu connexe Similaire à 10 05-28 finaltfnslidedeck.ppt (20) 10 05-28 finaltfnslidedeck.ppt1. Sep 21, 2010 www.teamfrednet.org Team FREDNET Mission Update 7. Landing/Operations Sep 21, 2010 www.teamfrednet.org www.teamfrednet.org Planned operations from -40 C to +40 C (narrow window for Lunar ops ~ 2 days) 8. Launch Windows Sep 21, 2010 www.teamfrednet.org Fluctuations in Lunar Distance vs. Optimal Landing Window 10. Delta V Budget Sep 21, 2010 www.teamfrednet.org Mission Phases Delta V (m/s) Trans-Lunar Injection 3100 Margin 5% 155 TLI Total 3255 Landing 2700 Margin 5% 135 ACS 10 TCM 80 Alignment error 100 Landing Total 3025 Mission Total 6280 13. Landed Mass Breakdown Sep 21, 2010 www.teamfrednet.org www.teamfrednet.org Subsystem Baseline Mass (kg) Communications 5.0 GNC 5.4 Power 8.0 C&DH 2.0 Thermal (passive) 0.0 Structure 13.0 TFN Payload (rover/camera) 3.5 GLXP Payload 1.0 Total 37.9 Margin 7.1 Margin % 19% Total+Margin 45.0 14. Vehicle Masses (Weed) Sep 21, 2010 www.teamfrednet.org Item TLI (kg) De-orbit (kg) Lander (kg) Vehicle Total 37.00 14.50 20.90 Total Payload 207.40 80.90 45.00 Engine/Fuel 505.00 112.00 15.00 GLOW 749.40 207.40 80.90 16. TLI/Lander Mass Breakdown Sep 21, 2010 www.teamfrednet.org www.teamfrednet.org Lander Stage Total (kg) Ox Tank 4 Fuel Tank 2 Helium Tank 7 Main Engine 7 RCS Thruster 4 Structure 8 Plumbing 4 Electrical 4 Vehicle Total 40 Payload 30 Oxidizer 97 Fuel 13 Total GLOW 181 TLI Stage Total (kg) Ox Tank 12 Fuel Tank 4 Helium Tank 25 Main Engine 15 RCS Thruster 4 Structure 5 Plumbing 5 Electrical 4 VehicleTotal 74 Lander 181 Oxidizer 440 Fuel 61 Total GLOW 756 23. TFN Open Source Technologies Sep 21, 2010 www.teamfrednet.org www.teamfrednet.org picorover WRV-1 Jaluro Lunar Lander 24. TFN and XOIE Sep 21, 2010 www.teamfrednet.org www.teamfrednet.org 25. Mission Analysis Sep 21, 2010 www.teamfrednet.org Stage Mission Solid Margin Bi-Prop Margin TLI 3255 3300 1.4% De-Orbit 2835 2700 -4.8% Landing 190 190 0.0%