Thermal Hardware Specification -...

LISA Pathfinder

S2.ASU.ICD.2017Issue 1

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S2.ASU.ICD.2017 ISS01 SCM Therma Hardware Definition.doc

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CONTENTS

1. INTRODUCTION ...........................................................................................................................................5

2. DOCUMENTS................................................................................................................................................5 2.1 Applicable Documents............................................................................................................................5

3. SUMMARY OF REQUIRED HARDWARE ....................................................................................................5

4. LOCATION AND TYPES OF PLATFORM MLI .............................................................................................6

5. OVERVIEW OF SCM MLI LOCATIONS .......................................................................................................8 5.1 General Overview...................................................................................................................................8 5.2 Lower Floor Overview ............................................................................................................................9 5.3 Lower Cylinder Overview .......................................................................................................................9 5.4 External Closure Panels Overview.......................................................................................................10 5.5 Unit Specific MLI Overview ..................................................................................................................13 5.6 Flight Model Heaters ............................................................................................................................16 5.7 Test Heaters .........................................................................................................................................18 5.8 Thermal Interface Materials..................................................................................................................19 5.9 Thermistors...........................................................................................................................................19 5.10 Thermocouples...................................................................................................................................22

TABLES

Table 1: Deliverable Hardware Quantities.........................................................................................................5 Table 2: List of SCM MLI Blankets ....................................................................................................................7 Table 2: List of SCM Heaters ..........................................................................................................................18 Table 2: List of SCM Interface Materials .........................................................................................................19 Table 2: List of SCM Thermistors ....................................................................................................................22

FIGURES Figure 1: SCM Spacecraft View from +X+Y side ..............................................................................................8 Figure 2: SCM Spacecraft View from –X-Y side ...............................................................................................8 Figure 3: SCM Spacecraft View from -Z side ....................................................................................................9 Figure 4: SCM Lower Cylinder MLI ...................................................................................................................9 Figure 5: Closure Panel 1 (+X)........................................................................................................................10 Figure 6: Closure Panel 2 (+X+Y) ...................................................................................................................10 Figure 7: Closure Panel 3 (+Y)........................................................................................................................10 Figure 8: Closure Panel 4 (-X+Y) ....................................................................................................................11 Figure 9: Closure Panel 5 (-X).........................................................................................................................11 Figure 10: Closure Panel 6 (-X-Y) ...................................................................................................................11 Figure 11: Closure Panel 7 (-Y).......................................................................................................................12 Figure 12: Closure Panel 8 (+X-Y) ..................................................................................................................12 Figure 13: Battery MLI .....................................................................................................................................13 Figure 14: Sun Sensor MLI (1 of 3) .................................................................................................................13 Figure 15: AST MLI..........................................................................................................................................13 Figure 16: MGA MLI ........................................................................................................................................14 Figure 17: MGA MLI ........................................................................................................................................14 Figure 17: FEEP Cluster MLI...........................................................................................................................14

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Figure 18: Spacecraft – Solar Array Gap MLI .................................................................................................15

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1. INTRODUCTION

This document provides an overview of the thermal hardware items required for the LISA PathFinder SCM spacecraft.

2. DOCUMENTS

2.1 Applicable Documents

a S2.ASU.SOW.2028 LPF SCM Thermal Hardware SOW

b S2.ASU.RS.2060 SCM Thermal Hardware Requirement Specification

c S2.ASU.ICD.2002 SCM Mechanical Interface Configuration Document

3. SUMMARY OF REQUIRED HARDWARE

The following is a summary of the total number of items required from the SCM thermal hardware:

Item Quantity FM Heaters 300 Test Heaters 50 Unit Interface Thermal Filler 28 Low Conductivity Washers 32 External MLI (including spares) 50 Thermal Test MLI 5 External MLI Post Thermal Test 8 Unit Specific MLI 11 Thermistors 100 Thermocouples 330

Table 1: Deliverable Hardware Quantities

The following section contain more comprehensive tables defining the deliverable hardware.

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4. LOCATION AND TYPES OF PLATFORM MLI

Name Location Enveloping Size (1) (mm) Type

MLI replacement

After Test Particularity

SCMLI_001 Lower Closure +Y inner 820 x 440 (TBC) S/C External (*) Several cut-outs

SCMLI_002 Lower Closure -Y inner 820 x 440 (TBC) S/C External (*) Several cut-outs

SCMLI_003 Lower Cylinder Outer +X 90 x 1300 (TBC) S/C External √

SCMLI_004 Lower Cylinder Outer -X 90 x 1300 (TBC) S/C External √

SCMLI_005 Lower Cylinder Inner -X 220 x 1300 (TBC) S/C External √

SCMLI_006 Lower Cylinder Inner +X 220 x 1300 (TBC) S/C External √

SCMLI_007 LCA Cage Base radius 400 (TBC) S/C External (*)

SCMLI_010 Lower Closure +X outer 600 x 300 (TBC) S/C External (*)

SCMLI_020 Lower Closure +X+Y outer 60 x 325 (TBC) S/C External (*)

SCMLI_030 Lower Closure +Y outer 1130 x 700 (TBC) S/C External (*)

SCMLI_040 Lower Closure -X-Y outer 670 x 420 (TBC) S/C External (*)

SCMLI_050 Lower Closure MGA 500 x 290 (TBC) S/C External (*)

SCMLI_060 Lower Closure -Y outer 540 x 930 (TBC) S/C External (*)

SCMLI_101 Panel +X 310 x 160 (TBC) S/C External √ Radiator trimming

SCMLI_102 Panel +X 720 x 310 (TBC) S/C External (*)

SCMLI_103 Panel +X 310 x 135 (TBC) S/C External (*)

SCMLI_201 Panel +X+Y 50 x 680 (TBC) S/C External (*)



SCMLI_301 Panel +Y 50 x 910 (TBC) S/C External (*)

SCMLI_302 Panel +Y 720 x 170 (TBC) S/C External (*)

SCMLI_303 Panel +Y Electrical Connector 190 x 910 (TBC) S/C External √ Removable blanket

SCMLI_304 Panel +Y Trim Blanket 480 x 300 (TBC) S/C External (*) Radiator trimming

SCMLI_401 Panel -X+Y 360 x 680 (TBC) S/C External (*)




SCMLI_501 Panel -X 310 x 160 (TBC) S/C External (*) Radiator trimming

SCMLI_502 Panel -X 720 x 400 (TBC) S/C External (*)

SCMLI_503 Panel -X 310 x 135 (TBC) S/C External (*)

SCMLI_601 Panel -X-Y 50 x 590 (TBC) S/C External (*)

SCMLI_602 Panel -X-Y 720 x 180 (TBC) S/C External (*)

SCMLI_603 Panel -X-Y Electrical Connector 230 x 590 (TBC) S/C External √ Removable blanket

SCMLI_604 Panel -X-Y 620 x 170 (TBC) S/C External (*) Radiator trimming

SCMLI_701 Panel -Y 720 x 400 (TBC) S/C External (*)




SCMLI_801 Panel +X-Y 470 x 640 (TBC) S/C External (*) Radiator trimming

SCMLI_802 Panel +X-Y 720 x 310 (TBC) S/C External (*)

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Name Location Enveloping Size (1) (mm) Type

MLI replacement

After Test Particularity

SCMLI_803 Panel +X-Y Electrical Connector 220 x 640 (TBC) S/C External √ Radiator trimming Removable blanket

SCMLI_901 Battery 450 x 360 (TBC) Unit Specific (**)

SCMLI_911 Sun Sensor 1 Upper 190 x 180 (TBC) Unit Specific (**)

SCMLI_912 Sun Sensor 1 Lower 200 x 150 (TBC) Unit Specific (**)





SCMLI_921 AST 1 & 2 880 x 650 (TBC) Unit Specific (**)

SCMLI_931 MGA Base 290 x 170 (TBC) Unit Specific (**)

SCMLI_941 LGA 1 Bracket 280 x 120 (TBC) (2) Unit Specific (**)

SCMLI_942 LGA 2 Bracket 280 x 120 (TBC) (2) Unit Specific (**)

SCMLI_951 FEEP Cluster 1 520x 520 (TBC) S/C External (**)



SCMLI_991 Spacecraft - Solar Array Gap +X+Y 100 x 1250 (TBC) S/C External (*)

SCMLI_992 Spacecraft - Solar Array Gap -X+Y 100 x 1850 (TBC) S/C External (*)

SCMLI_993 Spacecraft - Solar Array Gap -X-Y 100 x 1250 (TBC) S/C External (*)

SCMLI_994 Spacecraft - Solar Array Gap +X-Y 100 x 1850 (TBC) S/C External (*)

TTMLI_01 Test Blanket to cover test harness 3000 x 500 (TBC) Thermal Test n/a





SCMLI_998 Spare TBD TBD -

SCMLI_999 Spare TBD TBD -

Total 10.1 m2 (TBC) (3) 66 8

Table 2: List of SCM MLI Blankets

Note:

The number of blankets per item is estimated. The MLI supplier is responsible to review and reassess the number of blankets necessary per item.

(1) Dimensions represent a rectangle that envelops the item area, and is estimated and will be subject to changes. The blanket area does not take into account the overlapping and borders

(2) Doesn’t include area required to insulate antenna coax cable

(3) Total area of blanket installed on spacecraft. Total does not include test blankets.

(*) MLI blanket assumed to be removable. There is therefore no need to replace them

(**) MLI blanket assumed not to be damaged during the FM tests. There is therefore no need to replace them.

The supplier shall be able to use blankets from other panels (lower closure, Closure panels) to overlap the edges of the panels as he sees fit. In that case, the overlapping concept shall be described and the concept of removable blankets shall be considered.

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5. OVERVIEW OF SCM MLI LOCATIONS

5.1 General Overview

Figure 1: SCM Spacecraft View from +X+Y side

Figure 2: SCM Spacecraft View from –X-Y side

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5.2 Lower Floor Overview

Figure 3: SCM Spacecraft View from -Z side

5.3 Lower Cylinder Overview

Figure 4: SCM Lower Cylinder MLI

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5.4 External Closure Panels Overview

Figure 5: Closure Panel 1 (+X)

Figure 6: Closure Panel 2 (+X+Y)

Figure 7: Closure Panel 3 (+Y)

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Figure 8: Closure Panel 4 (-X+Y)

Figure 9: Closure Panel 5 (-X)

Figure 10: Closure Panel 6 (-X-Y)

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Figure 11: Closure Panel 7 (-Y)

Figure 12: Closure Panel 8 (+X-Y)

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5.5 Unit Specific MLI Overview

Figure 13: Battery MLI

Figure 14: Sun Sensor MLI (1 of 3)

Figure 15: AST MLI

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Figure 16: MGA MLI

Figure 17: MGA MLI

Figure 18: FEEP Cluster MLI

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Figure 19: Spacecraft – Solar Array Gap MLI

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5.6 Flight Model Heaters

These heaters will be of the etched-foil type, encapsulated in Kapton. Most heaters have multiple elements, with the actual element that is used selected after spacecraft installation of the mat. This is to allow the heater dissipation to be tuned to the unit requirement post thermal test. The resistance provided below are the nominal, with the tuning provided by additional elements whose resistance is above and below the nominal. The redundancy is provided by a second separate heater mat. All heater elements shall not induce a magnetic field when operating. (non-induction type)

Heater Circuit Unit Heater Number

(Nominal) Heater Number

(Redundant) Heater Number

(Spare) Power

(@24V) (W) Heater Resistance

(Ohms) Dimensions

(mm) LCA Structure I/F 1 TH-HTP001 TH-HTR001 TH-HTS001 0.5 72.0 (TBC) 10 x 30 (TBC)LCA Structure I/F 2 TH-HTP002 TH-HTR002 TH-HTS002 0.5 72.0 (TBC) 10 x 30 (TBC)LCA Structure I/F 3 TH-HTP003 TH-HTR003 TH-HTS003 0.5 72.0 (TBC) 10 x 30 (TBC)

HC1

LCA Structure I/F 4 TH-HTP004 TH-HTR004 TH-HTS004 0.5 72.0 (TBC) 10 x 30 (TBC)TH-HTP005 TH-HTR005 TH-HTS005 1.375 104.7 (TBC) 10 x 20 (TBC)

HC2 AST 1 Bracket I/F Ring TH-HTP006 TH-HTR006 TH-HTS006 1.375 104.7 (TBC) 10 x 20 (TBC)

TH-HTP007 TH-HTR007 TH-HTS007 1.375 104.7 (TBC) 10 x 20 (TBC)HC3 AST 2 Bracket I/F

Ring TH-HTP008 TH-HTR008 TH-HTS008 1.375 104.7 (TBC) 10 x 20 (TBC)

Colloid 1 Nozzle 1 TH-HTP009 TH-HTR009 TH-HTS009 0.9 40.0 (TBC) 200 x 10 (TBC)



HC4





HC5


Colloid 1 Flange 1 TH-HTP017 TH-HTR017 TH-HTS017 3.5 10.3 (TBC) 10 x 70 (TBC)Colloid 1 Flange 2 TH-HTP018 TH-HTR018 TH-HTS018 3.5 10.3 (TBC) 10 x 70 (TBC)Colloid 1 Flange 3 TH-HTP019 TH-HTR019 TH-HTS019 3.5 10.3 (TBC) 10 x 70 (TBC)

HC6

Colloid 1 Flange 4 TH-HTP020 TH-HTR020 TH-HTS020 3.5 10.3 (TBC) 10 x 70 (TBC)Colloid 2 Flange 1 TH-HTP021 TH-HTR021 TH-HTS021 3.5 10.3 (TBC) 10 x 70 (TBC)Colloid 2 Flange 2 TH-HTP022 TH-HTR022 TH-HTS022 3.5 10.3 (TBC) 10 x 70 (TBC)Colloid 2 Flange 3 TH-HTP023 TH-HTR023 TH-HTS023 3.5 10.3 (TBC) 10 x 70 (TBC)

HC7

Colloid 2 Flange 4 TH-HTP024 TH-HTR024 TH-HTS024 3.5 10.3 (TBC) 10 x 70 (TBC)

TH-HTP025 TH-HTR025 TH-HTS025 11.5 3.1 (TBC) 20 x 150 (TBC) Colloid 1 Flange

TH-HTP026 TH-HTR026 TH-HTS026 11.5 3.1 (TBC) 20 x 150 (TBC)


HC8

Colloid 2 Flange TH-HTP028 TH-HTR028 TH-HTS028 11.5 3.1 (TBC) 20 x 150

(TBC) TH-HTP029 TH-HTR029 TH-HTS029 1.9 12.9 (TBC) 15 x 70 (TBC)

RLU panel I/F TH-HTP030 TH-HTR030 TH-HTS030 1.9 12.9 (TBC) 15 x 70 (TBC)TH-HTP031 TH-HTR031 TH-HTS031 2.7 18.4 (TBC) 50 x 10 (TBC)

HC9 LMU panel I/F

TH-HTP032 TH-HTR032 TH-HTS032 2.7 18.4 (TBC) 50 x 10 (TBC)HC10 RLU panel I/F TH-HTP033 TH-HTR033 TH-HTS033 0.45 320.0 (TBC) 10 x 30 (TBC)

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(Spare) Power


(Ohms) Dimensions

(mm) TH-HTP034 TH-HTR034 TH-HTS034 0.45 320.0 (TBC) 10 x 30 (TBC)

TH-HTP035 TH-HTR035 TH-HTS035 0.9 640.0 (TBC) 10 x 30 (TBC)HC11 RLU panel I/F

TH-HTP036 TH-HTR036 TH-HTS036 0.9 640.0 (TBC) 10 x 30 (TBC)TH-HTP037 TH-HTR037 TH-HTS037 0.23 274.3 (TBC) 10 x 20 (TBC)TH-HTP038 TH-HTR038 TH-HTS038 0.23 274.3 (TBC) 10 x 20 (TBC)HC12 LMU panel I/F

TH-HTP039 TH-HTR039 TH-HTS039 0.233333333 274.3 (TBC) 10 x 20 (TBC)TH-HTP040 TH-HTR040 TH-HTS040 0.466666667 548.6 (TBC) 10 x 20 (TBC)TH-HTP041 TH-HTR041 TH-HTS041 0.466666667 548.6 (TBC) 10 x 20 (TBC)HC13 LMU panel I/F

TH-HTP042 TH-HTR042 TH-HTS042 0.466666667 548.6 (TBC) 10 x 20 (TBC)RLU panel I/F TH-HTP043 TH-HTR043 TH-HTS043 23 13.8 (TBC) 70 x 40 (TBC)

HC14 LMU panel I/F TH-HTP044 TH-HTR044 TH-HTS044 8 4.8 (TBC) 20 x 70 (TBC)LTP FEE SSU TH-HTP045 TH-HTR045 TH-HTS045 3 3.0 (TBC) 10 x 60 (TBC)LTP FEE PCU TH-HTP046 TH-HTR046 TH-HTS046 5 5.0 (TBC) 10 x 60 (TBC)

TH-HTP047 TH-HTR047 TH-HTS047 5 5.0 (TBC) 20 x 70 (TBC)LTP DMU

TH-HTP048 TH-HTR048 TH-HTS048 5 5.0 (TBC) 20 x 70 (TBC)TH-HTP049 TH-HTR049 TH-HTS049 3 3.0 (TBC) 40 x 20 (TBC)

HC15

LTP CCU TH-HTP050 TH-HTR050 TH-HTS050 3 3.0 (TBC) 40 x 20 (TBC)

FEEP Cluster 1 Panel I/F 1 TH-HTP051 TH-HTR051 TH-HTS051 2.25 16.0 (TBC) 10 x 60 (TBC)



HC16


TH-HTP055 TH-HTR055 TH-HTS055 3.5 41.1 (TBC) 20 x 100 (TBC) HC17 SAU 1


TH-HTP057 TH-HTR057 TH-HTS057 5 28.8 (TBC) 20 x 100 (TBC) HC18 SAU 2

TH-HTP058 TH-HTR058 TH-HTS058 5 28.8 (TBC) 20 x 100 (TBC)

Umbilical 1 TH-HTP059 TH-HTR059 TH-HTS059 2 2.7 (TBC) 30 x 10 (TBC)Umbilical 2 TH-HTP060 TH-HTR060 TH-HTS060 1.5 2.1 (TBC) 30 x 10 (TBC)Umbilical 3 TH-HTP061 TH-HTR061 TH-HTS061 1.5 2.1 (TBC) 30 x 10 (TBC)Umbilical 4 TH-HTP062 TH-HTR062 TH-HTS062 2 2.7 (TBC) 30 x 10 (TBC)Umbilical 5 TH-HTP063 TH-HTR063 TH-HTS063 1.5 2.1 (TBC) 30 x 10 (TBC)Umbilical 6 TH-HTP064 TH-HTR064 TH-HTS064 2 2.7 (TBC) 30 x 10 (TBC)Umbilical 7 TH-HTP065 TH-HTR065 TH-HTS065 1.5 2.1 (TBC) 30 x 10 (TBC)Umbilical 8 TH-HTP066 TH-HTR066 TH-HTS066 1.5 2.1 (TBC) 30 x 10 (TBC)Umbilical 9 TH-HTP067 TH-HTR067 TH-HTS067 1.5 2.1 (TBC) 30 x 10 (TBC)Umbilical 10 TH-HTP068 TH-HTR068 TH-HTS068 2 2.7 (TBC) 30 x 10 (TBC)Umbilical 11 TH-HTP069 TH-HTR069 TH-HTS069 1.5 2.1 (TBC) 30 x 10 (TBC)

HC19

Umbilical 12 TH-HTP070 TH-HTR070 TH-HTS070 2 2.7 (TBC) 30 x 10 (TBC)Neutraliser 1 Panel I/F TH-HTP071 TH-HTR071 TH-HTS071 2.75 23.3 (TBC) 10 x 80 (TBC)

Neutraliser 2 Panel I/F TH-HTP072 TH-HTR072 TH-HTS072 2.75 23.3 (TBC) 10 x 80 (TBC)HC20

Neutraliser 3 Panel I/F TH-HTP073 TH-HTR073 TH-HTS073 2.75 23.3 (TBC) 10 x 80 (TBC)

TH-HTP074 TH-HTR074 TH-HTS074 4 7.1 (TBC) 10 x 70 (TBC)HC21 LPT LCU

TH-HTP075 TH-HTR075 TH-HTS075 4 7.1 (TBC) 10 x 70 (TBC)

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(Spare) Power


(Ohms) Dimensions

(mm) LPT PMU TH-HTP076 TH-HTR076 TH-HTS076 7 12.4 (TBC) 10 x 90 (TBC)LCA Structure I/F 1 TH-HTP077 TH-HTR077 TH-HTS077 0.75 1.3 (TBC) 10 x 10 (TBC)LCA Structure I/F 2 TH-HTP078 TH-HTR078 TH-HTS078 0.75 1.3 (TBC) 10 x 10 (TBC)LCA Structure I/F 3 TH-HTP079 TH-HTR079 TH-HTS079 0.75 1.3 (TBC) 10 x 10 (TBC)

LCA Structure I/F 4 TH-HTP080 TH-HTR080 TH-HTS080 0.75 1.3 (TBC) 10 x 10 (TBC)TH-HTP081 TH-HTR081 TH-HTS081 4.5 32.0 (TBC) 10 x 60 (TBC)

HC22 Battery TH-HTP082 TH-HTR082 TH-HTS082 4.5 32.0 (TBC) 10 x 60 (TBC)

HC23 PCDU TH-HTP083 TH-HTR083 TH-HTS083 5 115.2 (TBC) 10 x 65 (TBC)

FEEP PCU 1 TH-HTP084 TH-HTR084 TH-HTS084 11 1.6 (TBC) 10 x 140 (TBC)

FEEP Cluster 1 TH-HTP085 TH-HTR085 TH-HTS085 4 0.6 (TBC) 10 x 50 (TBC)FEEP Cluster 1 LOM TH-HTP086 TH-HTR086 TH-HTS086 10 1.5 (TBC) 50 x 25 (TBC)FEEP PCU 2 TH-HTP087 TH-HTR087 TH-HTS087 4 0.6 (TBC) 10 x 50 (TBC)FEEP Cluster 2 TH-HTP088 TH-HTR088 TH-HTS088 4 0.6 (TBC) 10 x 50 (TBC)FEEP Cluster 2 LOM TH-HTP089 TH-HTR089 TH-HTS089 10 1.5 (TBC) 50 x 25 (TBC)FEEP PCU 3 TH-HTP090 TH-HTR090 TH-HTS090 6 0.9 (TBC) 10 x 75 (TBC)FEEP Cluster 3 TH-HTP091 TH-HTR091 TH-HTS091 4 0.6 (TBC) 10 x 50 (TBC)

HC24

FEEP Cluster 3 LOM TH-HTP092 TH-HTR092 TH-HTS092 10 1.5 (TBC) 50 x 25 (TBC)TBC Spare 1 TH-HTP093 TH-HTR093 TH-HTS093 TBD TBD TBD TBC Spare 2 TH-HTP094 TH-HTR094 TH-HTS094 TBD TBD TBD TBC Spare 3 TH-HTP095 TH-HTR095 TH-HTS095 TBD TBD TBD TBC Spare 4 TH-HTP096 TH-HTR096 TH-HTS096 TBD TBD TBD TBC Spare 5 TH-HTP097 TH-HTR097 TH-HTS097 TBD TBD TBD TBC Spare 6 TH-HTP098 TH-HTR098 TH-HTS098 TBD TBD TBD TBC Spare 7 TH-HTP099 TH-HTR099 TH-HTS099 TBD TBD TBD TBC Spare 8 TH-HTP100 TH-HTR100 TH-HTS100 TBD TBD TBD

Each heater requires a spare for installation. Heater resistances currently TBD. To be supplier at supplier Kick-Off.

Table 3: List of SCM Heaters

5.7 Test Heaters

The location and resistance of the SCM thermal test heaters are TBC, however the test facility can support up to 50.

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5.8 Thermal Interface Materials

A total of 1.02m2 (TBC) of conductive filler gasket is necessary for the units that require a high conductive coupling to the structure. In addition a total of 24 thermally isolating washers are required for the antennas that shall be conductively isolated from the spacecraft.

Sub-System Unit

Interface Dimensions (mm)

TBC Structure Interface

Post Thermal Test Replacement

PCDU 335 x 285 Conductive Filler X OBC 320 x 300 Conductive Filler X Transponder 200 x 150 Conductive Filler X MGA - 8 Washers (5mm thick)

Power, Computer,

TT&C

LGA (x2) - 8 Washers (5mm thick) AOCS STE (DPU) (x2) 245 x 165 Conductive Filler X

Sun Sensors (x3) - 4 Washers (5mm thick) FEEP PCU (x3) 240 x 165 Conductive Filler X EPDP PCU 145 x 115 Conductive Filler X

CCU 250 x 250 Conductive Filler X DMU 315 x 210 Conductive Filler X FEE SAU (x2) 340 x 310 Conductive Filler X LCU 235 x 175 Conductive Filler X PMU 265 x 195 Conductive Filler X

LTP

ULU 340 x 150 Conductive Filler X

Colloid Thruster (x2) 300 x 300 (250 x 250 hole) Conductive Filler X

DRS IAU 230 x 210 Conductive Filler X

Table 4: List of SCM Interface Materials

5.9 Thermistors

The SCM design provides for a total of 90 thermistors for temperature monitoring and active heater control. The allocation of these thermistors is presented below. In addition to the following, 10 Yellowspring (10kohm, YSI) thermistors are required as spare for installation, requiring a total of 100 thermistors to be delivered.

Function (TBC) Thermistor

Number Thermistor Type Location (TBC) Monitoring

TMV Heater Control

Fine Temperature Measurement

Windowing

TH-TCS001 Yellowspring (10kohm, YSI) LTP LCA Cage +X x x TH-TCS002 Yellowspring (10kohm, YSI) LTP LCA Cage +Y x x TH-TCS003 Yellowspring (10kohm, YSI) LTP LCA Cage +Z x x TH-TCS004 Yellowspring (10kohm, YSI) LTP LCA Cage -X x x TH-TCS005 Yellowspring (10kohm, YSI) LTP LCA Cage -Y x x

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TMV Heater Control


Windowing

TH-TCS006 Yellowspring (10kohm, YSI) LTP LCA Cage -Z x x TH-TCS007 Yellowspring (10kohm, YSI) LTP IS FEE SAU +X x x TH-TCS008 Yellowspring (10kohm, YSI) LTP IS FEE SAU -X x x TH-TCS009 Yellowspring (10kohm, YSI) LTP LAB x x TH-TCS010 Yellowspring (10kohm, YSI) LTP PMU x x TH-TCS011 Yellowspring (10kohm, YSI) LTP LMU x x x TH-TCS012 Yellowspring (10kohm, YSI) LTP RLU x x x TH-TCS013 Yellowspring (10kohm, YSI) LTP LMU x TH-TCS014 Yellowspring (10kohm, YSI) LTP LMU x TH-TCS015 Yellowspring (10kohm, YSI) LTP RLU x TH-TCS016 Yellowspring (10kohm, YSI) LTP RLU x TH-TCS017 Yellowspring (10kohm, YSI) AST +X x x TH-TCS018 Yellowspring (10kohm, YSI) AST +X x TH-TCS019 Yellowspring (10kohm, YSI) AST +X x TH-TCS020 Yellowspring (10kohm, YSI) AST -X x x TH-TCS021 Yellowspring (10kohm, YSI) AST -X x TH-TCS022 Yellowspring (10kohm, YSI) AST -X x TH-TCS023 Yellowspring (10kohm, YSI) Battery x x TH-TCS024 Yellowspring (10kohm, YSI) Battery x TH-TCS025 Yellowspring (10kohm, YSI) Battery x TH-TCS026 Yellowspring (10kohm, YSI) DRS Colloid Thruster +X x x TH-TCS027 Yellowspring (10kohm, YSI) DRS Colloid Thruster +X x TH-TCS028 Yellowspring (10kohm, YSI) DRS Colloid Thruster +X x TH-TCS029 Yellowspring (10kohm, YSI) DRS Colloid Thruster -X x x TH-TCS030 Yellowspring (10kohm, YSI) DRS Colloid Thruster -X x TH-TCS031 Yellowspring (10kohm, YSI) DRS Colloid Thruster -X x

TH-TCS032 Yellowspring (10kohm, YSI) FEEP Thruster Cluster +X+Y Interface x x

TH-TCS033 Yellowspring (10kohm, YSI) FEEP Thruster Cluster +X+Y Interface x

TH-TCS034 Yellowspring (10kohm, YSI) FEEP Thruster Cluster +X+Y Interface x

TH-TCS035 Yellowspring (10kohm, YSI) DRS +X Colloid Thruster, +Y+Z Nozzle x

TH-TCS036 Yellowspring (10kohm, YSI) DRS +X Colloid Thruster, -Y-Z Nozzle x

TH-TCS037 Yellowspring (10kohm, YSI) DRS -X Colloid Thruster, +Y+Z Nozzle x

TH-TCS038 Yellowspring (10kohm, YSI) DRS +X Colloid Thruster, -Y-Z Nozzle x

TH-TCS039 Yellowspring (10kohm, YSI) DRS IAU x TH-TCS040 Yellowspring (10kohm, YSI) EPDP CDA x TH-TCS041 Yellowspring (10kohm, YSI) EPDP PCU x

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TMV Heater Control


Windowing

TH-TCS042 Yellowspring (10kohm, YSI) EPDP PDA x TH-TCS043 Yellowspring (10kohm, YSI) FEEP Interconnect +X+Y x TH-TCS044 Yellowspring (10kohm, YSI) FEEP Interconnect -X+Y x TH-TCS045 Yellowspring (10kohm, YSI) FEEP Interconnect -Y x

TH-TCS046 Yellowspring (10kohm, YSI) FEEP Neutraliser assembly +X+Y x

TH-TCS047 Yellowspring (10kohm, YSI) FEEP Neutraliser assembly -X+Y x

TH-TCS048 Yellowspring (10kohm, YSI) FEEP Neutraliser assembly -X-Y x

TH-TCS049 Yellowspring (10kohm, YSI) FEEP PCU +X+Y x TH-TCS050 Yellowspring (10kohm, YSI) FEEP PCU -X+Y x TH-TCS051 Yellowspring (10kohm, YSI) FEEP PCU -Y x

TH-TCS052 Yellowspring (10kohm, YSI) FEEP Thruster Cluster +X+Y Internal x

TH-TCS053 Yellowspring (10kohm, YSI) FEEP Thruster Cluster -X+Y Interface x

TH-TCS054 Yellowspring (10kohm, YSI) FEEP Thruster Cluster -X+Y Internal x

TH-TCS055 Yellowspring (10kohm, YSI) FEEP Thruster Cluster -Y Interface x

TH-TCS056 Yellowspring (10kohm, YSI) FEEP Thruster Cluster -Y Internal x

TH-TCS057 Yellowspring (10kohm, YSI) Gyro +X x TH-TCS058 Yellowspring (10kohm, YSI) Gyro -X x TH-TCS059 Yellowspring (10kohm, YSI) LGA +X-Y x TH-TCS060 Yellowspring (10kohm, YSI) LGA -X+Y x TH-TCS061 Yellowspring (10kohm, YSI) LTP CCU x TH-TCS062 Yellowspring (10kohm, YSI) LTP DMU x TH-TCS063 Yellowspring (10kohm, YSI) LTP Fibre Box x TH-TCS064 Yellowspring (10kohm, YSI) LTP IS FEE PCU x

TH-TCS065 Yellowspring (10kohm, YSI) LTP IS FEE SAU Switching Unit (SSU) x

TH-TCS066 Yellowspring (10kohm, YSI) LTP Magnetometer +X x TH-TCS067 Yellowspring (10kohm, YSI) LTP Magnetometer +Y x TH-TCS068 Yellowspring (10kohm, YSI) LTP Magnetometer -X x TH-TCS069 Yellowspring (10kohm, YSI) LTP Magnetometer -Y x TH-TCS070 Yellowspring (10kohm, YSI) LTP Radiation monitor x TH-TCS071 Yellowspring (10kohm, YSI) LTP ULU x TH-TCS072 Yellowspring (10kohm, YSI) MGA x TH-TCS073 Yellowspring (10kohm, YSI) OBC x TH-TCS074 Yellowspring (10kohm, YSI) PCDU x TH-TCS075 Yellowspring (10kohm, YSI) STE (DPU) +Z x TH-TCS076 Yellowspring (10kohm, YSI) STE (DPU) -Z x

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TH-TCS077 Yellowspring (10kohm, YSI) Sun sensor +X+Y 1 x TH-TCS078 Yellowspring (10kohm, YSI) Sun sensor +X+Y 2 x TH-TCS079 Yellowspring (10kohm, YSI) Sun sensor -X-Y x TH-TCS080 Yellowspring (10kohm, YSI) Transponder +Z x TH-TCS081 Yellowspring (10kohm, YSI) Transponder -Z x TH-TCS082 Yellowspring (10kohm, YSI) Umbilicals +X+Y x TH-TCS083 Yellowspring (10kohm, YSI) Umbilicals +X-Y x TH-TCS084 Yellowspring (10kohm, YSI) Umbilicals -X+Y x TH-TCS085 Yellowspring (10kohm, YSI) Umbilicals -X-Y x TH-TCS086 Yellowspring (10kohm, YSI) Spare x TH-TCS087 Yellowspring (10kohm, YSI) Spare x TH-TCS088 Rosemont PT1000 Solar Array x TH-TCS089 Rosemont PT1000 Solar Array x TH-TCS090 Rosemont PT1000 Solar Array x Total 74 24 12

Table 5: List of SCM Thermistors

5.10 Thermocouples

The location of the SCM thermal test thermocouples are TBC, however the test facility can support up to 300 + 30 spares for installation.

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DOCUMENT CHANGE DETAILS

ISSUE CHANGE AUTHORITY CLASS RELEVANT INFORMATION/INSTRUCTIONS

1 - - Initial Issue

DISTRIBUTION LIST

INTERNAL

EXTERNAL

S. Barraclough ESA A.G, Jones N. Dunbar G. Adams M. Backler

Configuration Management

Thermal Hardware Specification -...

Documents

Transcript of Thermal Hardware Specification -...