DINO CDR Systems Integration and Testing Deployment and

DINO CDR - Systems Integration and Testing Deployment and Intelligent Nanosatellite Operations (DINO) University of Colorado March 13, 2003

DINO CDR – Systems 9/5/2021 Table of Contents • • DINO’s Configuration Wiring Strategy Wiring Harness Design Wire / Fuse Summary Connector Design Integration and Test Plan Schedule – What to be expected in the near future • Issues and Concerns Colorado Space Grant Consortium 2

DINO CDR – Systems 9/5/2021 DINO’s Configuration Colorado Space Grant Consortium 3

DINO CDR – Systems 9/5/2021 Wiring Strategy • Four Buses: • Essential Bus Includes all components that DINO must have in order to be operational. – – • Payload Bus Includes the Science package – Science box Flight Computer, C&DH Box Power system Body-Mounted Solar Panels Comm system Non-Essential Bus Includes components that DINO does not need to survive – – – • ADCS PCB Box ADCS Torque Rods ADCS Magnetometer Box FITS Solar Panel System Aerofin Package Tip Mass Comm • Hazardous Bus Includes all deployment components – – – – Colorado Space Grant Consortium ICU Lightband System HOP Antenna Deployment System Tip Mass Lightband System FITS Frangibolt Aerofin Frangibolt EMC Hinges 27 -V Battery Box 4

DINO CDR – Systems 9/5/2021 Wiring Harness Design Legend: Green Red Purple Orange Colorado Space Grant Consortium = Essential = Non-Essential = Payload = Hazardous 5

DINO CDR – Systems 9/5/2021 Wiring Harness Design Legend: Green Red Purple Orange Colorado Space Grant Consortium = Essential = Non-Essential = Payload = Hazardous 6

DINO CDR – Systems 9/5/2021 Wiring Summary Bus Essential Non-Essential Payload Hazardous Thermal # of Min. # of Wires Connectors Fuses 24 80 18 28 60 8 19 3 10 0 - 20 0 22 3 13 0 Notes C&DH, Power, Comm ADCS, Aerofin, FITS Science Deployments Unplaced yet • Total of approximately 210 wires varying from 26 to 18 gauge wire requiring at least 40 connectors and 38 fuses. Colorado Space Grant Consortium 7

DINO CDR – Systems 9/5/2021 Wire Sizing / Fuse Choice Wire Type Current (A) Gauge (AWG) Fuse, if applicable Pwr / Gnd 2. 50 – 4. 00 18 1000 27 -V Battery Pwr / Gnd 1. 75 – 2. 50 20 0750 EMC Hinges Pwr / Gnd 1. 00 – 1. 75 22 0500 Light. Band, S. Panels, Comm. Pwr / Gnd 0. 75 – 1. 00 24 0400 Frangibolt Pwr / Gnd 0. 50 – 0. 75 24 0300 HOP, ADCS Pwr / Gnd 0. 37 – 0. 50 26 0200 Tip Mass Comm Pwr / Gnd < 0. 37 26 < 0200 Dig. / Analog < 0. 01 26 N/A Data lines USB / Serial < 0. 01 26 N/A Data lines Purpose Haz. Sensors, Aerofin, Cam. Note: The fuses are subminiature plug-in (ME 451 -0018 -XXXX) Colorado Space Grant Consortium 8

DINO CDR – Systems 9/5/2021 D Subminiature connectors • M 24308 type connectors • NASA certified • Entirely made of metal • Include plugs and sockets Connector # of Contacts Used on 9 Smaller subsystem connections 15 FITS, Aerofin, Flight Comp. 25 ADCS PCB, Power 37 Flight Comp. 50 Not used Colorado Space Grant Consortium 9

DINO CDR – Systems 9/5/2021 Connectors • Gold plating • Metal shell made out of steel Crimp pin connectors: • Used for torque rods, thermistors • Gold plated • Diameter of the pin varies with the amount of current Colorado Space Grant Consortium 10

DINO CDR – Systems 9/5/2021 Integration of connectors • Number of mate-demates should not exceed ~10 times • Additional disposable connecters will be used to ensure no damage to flight connectors • Disposable connectors will remain throughout integration and testing • Upon checkout: – Removal of disposable connectors – Epoxy connectors to protect fragile wires Colorado Space Grant Consortium 11

DINO CDR – Systems 9/5/2021 Integration and Test Plan Colorado Space Grant Consortium 12

DINO CDR – Systems 9/5/2021 Schedule Event Approximate Date Subsystem Completion May 3 rd Power Integration and testing May 10 th – May 23 rd C&DH Integration and testing May 24 th – June 6 th DINO Functional Testing June 7 th – June 20 th Full DINO Electrical Integration Complete June 20 th Installation in Boxes – testing June 21 st – July 4 th Isogrid Mounting – testing July 6 th – July 18 th Wire Harness Routing – testing July 19 th – Aug 1 st AFRL Critical Design Review August 9 th Mechanism Integration and testing Aug 23 rd – Sept 5 th Mount Solar Panels – testing Sept 6 th – Sept 19 th DINO Functional Testing Sept 20 th – Oct 10 th Full DINO Integration Complete October 10 th Day in the Life and Full Mission Testing Nov – Dec Delivery!!! January, 2005 Colorado Space Grant Consortium 13

DINO CDR – Systems 9/5/2021 Issues and Concerns • Need full subsystem cooperation – Scheduling – Documentation (i. e. , test plans!) • Time is a concern. That schedule was fast and furious with very little lag time for big problems. Colorado Space Grant Consortium 14

DINO CDR – Systems 9/5/2021 Final Thoughts DINO is coming along very well – there has been a huge amount of hard work Keep it up! Colorado Space Grant will be remembered in this national University Nanosat effort Colorado Space Grant Consortium 15