QB50 System Requirements Document

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Reference documentsRef. No. Document Name Document Title[R01] call_proposals_QB50.pdf Call for CubeSat Proposals for QB50,von Karman Institute for Fluid Dynamics(VKI), Brussels, Belgium, 15 February2012[R02] cds_rev12.pdf CubeSat Design Specification Rev. 12,The CubeSat Program, Cal Poly SLO,2009[R03] EN-13445-1 EN 13445, European Standard forUnfired Pressure Vessels, ComitéEuropéen de Normalisation[R04]Recommended Set of Models and InputParameters for the Simulations ofOrbital Dynamics of the QB50 CubeSatsIssue 3 6 5 February 2013
1. CubeSat System Requirements1.1 Structural SubsystemSeveral standard CubeSat sizes are identified in ‘Units’ relative to the original 1-Unit (1U)CubeSat. The rail dimensions are shown in Table 1. Only 2U and 3U CubeSats are anticipated forQB50.QB50-SYS-1.1.1. The CubeSat dimensions shall be as shown in Table 1.Table 1: Generic CubeSat dimensionsProperty 2U 3UFootprint 100 x 100 ± 0.1 mm 100 x 100 ±0.1 mmHeight 227 ± 0.1 mm 340.5 ± 0.1 mmFeet 8.5 x 8.5 ± 0.1 mm 8.5 x 8.5 ± 0.1 mmRailsExternal edges shall berounded Rx1mm orchamfered 45°x 1mmExternal edges shall berounded Rx1mm orchamfered 45°x 1mmThe StackPack – the deployment system for the QB50 mission –can accommodate 2U and 3UCubeSats. It provides extra volume to accommodate deployables, appendices, booms, antennasand solar panels. It offers lateral clearance between the CubeSat lateral sides and the StackPackSide Panels. Moreover the StackPack provides the capability to accommodate CubeSats withboth, front and back extended volumes. However, for the CubeSats carrying the sciencepayload, only the front could be used as the back extended volume is allocated for the sciencepayload.Figure 1 shows the StackPack extended volumes provided for the QB50 CubeSats; lateralextensions (-X, +X, -Y and +Y) are depicted in green, while front one (+Z) in yellow and back one(-Z) in blue.Issue 3 7 5 February 2013
Page 1 and 2: QB50System Requirementsand Recommen
Page 4: Science Payload Interface Control D
Page 9: Figure 3: 3U CubeSat extended volum
Page 12 and 13: possibility of using other team’s
Page 14 and 15: QB50-SYS-1.5.11. Every science pack
Page 16 and 17: 3. Display which ground station is
Page 18 and 19: 2.3 Spacecraft ContaminationQB50-SY
Page 22: 4.1 MechanicalAs shown in Figure 5,
Page 25 and 26: Attachment A: INMS Interface Contro
Page 27 and 28: CHANGE RECORDIssue Date Sections ch
Page 29 and 30: 5.9.4 OBC_SU_ON (0xFB) ............
Page 31 and 32: 2 Normative and Informative documen
Page 33 and 34: CUBESAT side connector to attach to
Page 35 and 36: 4.1.1 SWITCHED Power PinsThe +5, +3
Page 37 and 38: 4.4 Power BudgetThe power budget is
Page 39 and 40: 5.3 Command & Response Handling5.3.
Page 41 and 42: 5.4 Command Packet Structure to Sci
Page 43 and 44: 5.7 SU State Transition DiagramThe
Page 45 and 46: 5.9.2 Script TIME Field - @tTime-ta
Page 47 and 48: 5.9.9 SU_STIM (0x04)This command wi
Page 49 and 50: 5.9.12 SU_CALM (0x07)This command r
Page 51 and 52: 5.9.14 SU_HK (0x09)The HOUSE_KEEPIN
Page 53 and 54: 5.10 Example SU Command Sequence Sc
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7 Attitude ControlThe CubeSat shall
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Attachment B: FIPEX Interface Contr
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FIPEX on QB50 Date: 06.02.2013--- D
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Attachment C: m-NLP Interface Contr
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TITLE: QB50 m-NLP Science Unit Inte
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QB50 System Requirements Document

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