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Chapter 8 Launch Operations

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1. Weather Limitation Ambient temperature 10 C 40 C Relative humidity lt 98 corresponding to 205 C The average ground wind velocity in the launch area is lower than 10m s The winds aloft limitation qxa lt 3400N m rad qxa reflects the aerodynamic loads acting on the LV whereas q is the dynamic head and a is LV angle of attack The horizontal visibility in the launch area is farther than 20km No thunder and lightning in the range of 40km around the launch area the atmosphere electrical field strength is weaker than 10kV m B8 4 2 GO Criteria for Launch The SC s status is normal and ready for launch The launch vehicle is normal and ready for launch All the ground support equipment is ready All the people withdraw to the safe area Issue 1999 8 12 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY B8 5 Pre launch Countdown Procedure The typical pre launch countdown procedure in the launch day is listed below No Time Event 1 6 hours Preliminary Calculation by Flight Software 2 5 hours Functional Checkouts on Each Sub system 3 4 hours GSE Withdrawal LV Status Checkouts Sealing 4 2 hours Preparing to Move Back the Service Tower 5 80 minutes Moving Away the Service Tower Accurately aiming Ground Telemetry and Tracking Systems Power on 6 60 minutes Preliminarily Loading Flight Software Loading PUS Software 50 minutes Tank Pressurization 8 40 minutes Gas
2. LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY CHAPTER 8 LAUNCH SITE OPERATION Launch Site Operation mainly includes LV Checkouts and Processing SC Checkouts and Processing SC and LV Combined Operations The typical working flow and requirements of the launch site operation are introduced in this chapter For different launch missions the launch site operation will be different especially for combined operations related to joint efforts from SC and LV sides Therefore the combined operations could be performed only if the operation procedures are coordinated and approved by all sides LM 2E uses JSLC and XSLC as its launch sites The launch site operations in the two launch sites are described as follows Part A Launch Operations in JSLC Two stage LM 2E and LM 2E ETS are launched from in JSLC A8 1 LV Checkouts and Processing Two stage LM 2E or LM 2E ETS launch vehicle is transported from CALT facility Beijing China to JSLC Gansu Province China and undergoes various checkouts and processing in South Technical Center and South Launch Center of JSLC The typical LV working flow in the launch site is shown in Figure A8 1 Issue 1999 8 1 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY Day 1 Unloading LV from the train and transferring to BL1 2 Unit tests of electrical system and on board equipment installation 3 LV Vertical integration in BLS 4 Tests to separate subsystem match
3. Pipes and Air conditioning Pipes Drop off Flight Software Loading SC Power Switch over On board Telemetry and Tracking Systems Power on 9 5 minutes Telemetry Tracking and Propellant Utilization Systems Power Switch over 10 60 seconds Control System Power Switch over Control System Telemetry System and Tracking System Umbilical Disconnection Moving Back the Cable Swing Arms 11 30 seconds TT amp C Systems Starting 12 7 seconds Camera on 13 0 seconds Ignition B8 6 Post launch Activities The injection parameters will be provided to Customer in half hours The launch evaluation report will be provided to the Customer in a month after launch Issue 1999 8 13
4. echnical Center and Launch Center of XSLC The typical LV working flow in the launch site is shown in Table 8 1 Table 8 1 LV Working Flow in the Launch Site Working Accumulative Period Period 3 Tests to Separate Subsystems 11 days 4 matching Test Among Subsystems days 1S cays Review on Checkout Results o Ea 8 To Transfer LV to Launch Center iays 23days QETE en E G 9 Erecting LV on the Launchpad 2days S cays moa oyy e a Issue 1999 8 10 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY After the SC is transferred to Launch Center some of SC and LV operations can be performed in parallel under conditions of no interference B8 2 Combined Operation Procedures Take LM 2E EPKM launching GTO satellite as an example B8 2 1 SC Integration and Fairing Encapsulation in Technical Center In BS3 SC team carries out all the SC operations CALT is responsible for mating SC with EPKM and installing the separation devices The following describes the working procedure 1 CALT to bolt the LV adapter on the fairing encapsulation pad 2 CALT to mate the interface adapter with LV adapter and install clampband system 3 CALT to bolt EPKM with interface adapter 4 SC team to install SC adapter on the SC 5 SC team to lift up SC and move SC onto the EPKM 6 CALT to bolt SC adapter with EPKM 7 CALT to encapsulate the fairing in BS3 8 CALT to remove the fairing fixture and to install the
5. encapsulated fairing from BS3 to BLS The following working procedures are performed 9 CLTC to lift the encapsulated fairing onto the transfer vehicle and to fasten the fairing with ropes CLTC to drive the vehicle from BS3 to BLS 10 CLTC to release the encapsulated fairing from the transfer vehicle CLTC to install hoisting slings to the encapsulated fairing inside BLS 11 CLTC to lift the fairing onto the second stage of LM 2E which is already erected 12 CALT to mate the encapsulated fairing with stage 2 of LM 2E This is the end of the combined operations See Figure A8 4 After the above mentioned combined operation is all over LM 2E carrying SCs will undergo various functional checkouts inside BLS then it will be transferred to launch center by moveable launch pad A8 3 SC Preparation and Checkouts CALT and CLTC are responsible for checking and verifying the umbilical cables and RF links If necessary SC team could witness the operation LV accessibility and RF silence time restriction must be considered when SC team performs operation to SCs Issue 1999 8 6 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY Transfer Vehicle 9 To lift the encapsulated fairing stack onto the transfer vehicle and to drive the vehicle from BS3 to BLS Ne KZ NFA P V TL aga wr I ee 11 To lift up the encapsulated fairing onto the LM 2E mi Figure A8 4 Payload Transfer and Fairing s
6. hoisting basket B8 2 2 SC Transfer CLTC is responsible for transferring the encapsulated fairing from BS3 to Launch Center The following working procedures are performed 9 CLTC to lift the encapsulated fairing onto the special vehicle and to fasten the fairing with ropes CLTC to connect the air conditioning to the fairing if necessary CLTC to drive the vehicle from BS3 to Launch Service Tower 10 CLTC to release the encapsulated fairing from the transfer vehicle CLTC to install slings to the encapsulated fairing under the Launch Service Tower CLTC to lift the fairing onto the 8 floor of the tower Issue 1999 8 11 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY B8 2 3 SC LV Integration in Launch Center The encapsulated fairing will be mated with the LV second stage on the service tower The following working procedures are performed 11 CALT to hoist the encapsulated fairing above the LV second stage 12 CALT to joint the bottom of the fairing with LV second stage CLTC to remove the hoisting basket outside the fairing CLTC to connect the SC umbilical connectors and SC air conditioning B8 3 SC Preparation and Checkouts CALT and CLTC are responsible for checking and verifying the umbilical cables and RF links If necessary SC team could witness the operation LV accessibility and RF silence time restriction must be considered when SC team performs operation to SC B8 4 Launch Limitation B8 4 1
7. igure A8 2 7 CALT to encapsulate the fairing in BS3 8 CALT to remove the fairing fixture and to install the hoisting basket See Figure A8 3 Issue 1999 8 3 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY Spacecraft Dispenser Supporting Table 1 To bolt the dispenser on 2 To mate the spacecraft with supporting table the dispenser one by one OMS Adapter Stack Fairing Encapsulation Pad 4 To transfer the OMS Adapter stack from BLS to BS3 and to set up the fairing encapsulation pad Spacecraft Payload Adapter Supporting a To bolt Payload Adapter on a supporting table 3 To complete the integration and form a SC Dispenser stack b To mate the OMS with Payload Adapter and form a OMS Adapter stack 8 4 5 To bolt the OMS Adapter stack on the pad 6 To integrate the SC Dispenser stack with OMS Adapter stack Figure A8 2 Payload LV Integration Issue 1999 8 4 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY fi o0 Fairing 7 To encapsulate the fairing Hoisting Basket 8 To remove the fairing fixture and to install the hoisting basket A nN A Figure A8 3 Fairing Encapsulation in BS3 a 2 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY A8 2 2 SC Transfer and Fairing Stage 2 Integration CLTC is responsible for transferring the
8. ing test among subsystem 5 Overall checkouts on LV in BLS 6 Payload LV combined operations 7 Functional check and transferring LV from BLS to launch center vertically 8 Overall checkouts in launch center 9 Preparation for fueling 10 Fueling and launch 8 2 In Technical In Launch Center Center 17 18 19 20 Issue 1999 Figure A8 1 LV Working Flow in JSLC 8 2 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY A8 2 Combined Operation Procedures Take LM 2E ETS launching multiple SCs as an example A8 2 1 SC Integration and Fairing Encapsulation in South Technical Center In BS3 SC team carries out all the SC operations LV side is responsible for mating SCs with dispenser and installing SC separation devices The following describes the typical working procedure 1 CALT to bolt the dispenser on the supporting table 2 SC team to lift up SCs and CALT to mate them with dispenser one by one and install SC LV separation devices 3 CALT to complete the SC LV integration and form a SC Dispenser stack 4 CALT to mate OMS with payload adapter in BLS and to transfer the OMS Adapter stack from BLS to BS3 CALT to set up the fairing encapsulation pad in BS3 5 CALT to bolt the OMS Adapter stack on the fairing encapsulation pad 6 CALT to integrate the SC Dispenser stack with OMS Adapter stack See F
9. tage 2 integration 8 7 8 7 Hoisting Slings sas 10 To move the encapsulated fairing stack into BLS and install hoisting sling VDH yy 12 To mate the encapsulated fairing with stage 2 of LM 2E Issue 1999 CALT S PROPRIETARY LM 2E USER S MANUAL CHAPTER 8 A8 4 Launch Limitation A8 4 1 Weather Limitation Ambient temperature 10 C 40 C Relative humidity lt 98 corresponding to 2045 C The average ground wind velocity in the launch area is lower than 10m s The winds aloft limitation qxa lt 3400N m rad qxa reflects the aerodynamic loads acting on the LV whereas q is the dynamic head and a is LV angle of attack The horizontal visibility in the launch area is farther than 20km No thunder and lightning in the range of 40km around the launch area the atmosphere electrical field strength is weaker than 10kV m A8 4 2 GO Criteria for Launch The SCs status is normal and ready for launch The launch vehicle is normal and ready for launch All the ground support equipment is ready All the people withdraw to the safe area A8 5 Pre launch Countdown Procedure The typical pre launch countdown procedure in the launch day is listed below No Time Event 1 6 hours Preliminary Calculation by Flight Software 2 5 hours Functional Checkouts on Each Sub system 3 4 hours GSE Withdrawal LV Status Checkouts Sealing 4 2 hours Preparing to Mo
10. ve Back the Service Tower 5 80 minutes Moving Back the Service Tower Accurately aiming Ground Telemetry and Tracking Systems Power on 6 60 minutes Preliminarily Loading Flight Software Loading PUS Software 50 minutes Tank Pressurization 8 40 minutes Gas Pipes and Air conditioning Pipes Drop off Flight Software Loading SC Power Switch over Issue 1999 8 8 CALT S PROPRIETARY LM 2E USER S MANUAL CHAPTER 8 On board Telemetry and Tracking Systems Power on 9 5 minutes Telemetry Tracking and Propellant Utilization Systems Power Switch over 10 60 seconds Control System Power Switch over Control System Telemetry System and Tracking System Umbilical Disconnection Moving Back the Cable Swing Arms 11 30 seconds TT amp C Systems Starting 12 7 seconds Camera on 13 0 seconds Ignition A8 6 Post launch Activities The orbital parameters of the injected orbit will be provided to Customer in half hours after SC injection The launch evaluation report will be provided to the Customer in a month after launch Issue 1999 8 9 LM 2E USER S MANUAL CHAPTER 8 CALT S PROPRIETARY Part B Launch Operations in XSLC Two stage LM 2E and LM 2E EPKM are launched from XSLC B8 1 LV Checkouts and Processing The launch vehicle is transported from CALT facility Beijing China to XSLC Sichuan Province China and undergoes various checkouts and processing in T

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