Chapter 8 Launch Operations
Contents
1. SATELLITE CONTAINER lt 8 7 4 To bolt SC with base pad and to verify SC s status 6 SC Container together with SC is ready for transfer Figure 8 2 SC LV Integration in Technical Center Issue 1999 8 7 LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY Transfer Vehicle Service Tower 8 The Transfer Vehicle transfer SC Container to Launch Center Umbilical Tower Figure 8 3 SC Transfer 9 To lift the SC container up to the 8 floor of the Service Tower 8 8 Issue 1999 LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY A o0 Moveable Moveable Platform Platform Fixed LM 3A Fixed Platform Launch Vehicle Platform SC Container s Cylinders Elevator Slings for SC Elevator Container a a a g Figure 8 4 Layout of the Clean Area on the 8th Floor of the Service Tower ie 2 a _ LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY Fairing 10 To hoist the fairing and SC container up to the clean area on the 8th floor of the service tower to make the environmental conditions reach SC s requirements o0 SC Container Stack SC Container Base Pad 11 To unstack the SC container 12 To install SC slings and to unbolt the SC from the base pad 13 To2. the above of the LV third stage by using of the crane of 8 floor CALT to mate the payload adapter with LV Issue 1999 8 5 LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY third stage 14 SC team to remove the SC slings SC team to do SC pre flight checkouts CALT to encapsulate the two halves of the fairing after SC and LV sides confirm that SC and LV is ready for fairing encapsulation 15 CALT to remove the fairing fixture and complete the integration CALT and CLTC to connect SC ground umbilical connectors and fairing air conditioning system CLTC to open the big closure and lift the SC container down to the ground SC team can only perform simple operations and checkouts to the SC through access door of the fairing after encapsulation See Figure 8 5 8 3 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 Issue 1999 8 6 LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY 1 To mate Payload Adapter with Technological Stand Payload Adapter a Technological Saye Se echnological Uy Pee Stand SATELLITE CONTAINER 5 To stack the SC container 2 To mate Payload Adapter with SC SC Container 3 To install Clampband and IFD IERHAA J
3. Container Section L a 4 R i SC LV Separation ection 850 Plane Base Pad Payload Adapter Figure 8 1 SC Container Configuration 8 3 2 2 SC LV Integration in Technical Center The payload adapter and SC are mated in BS3 after SC is fueled and weighed SC team carries out all the SC operations CALT is responsible for mating SC with the payload adapter and installing SC LV separation devices The following describes the working procedure 1 CALT to bolt payload adapter on the technological stand and to install SC LV locked separation springs 2 SC team to lift up the SC CALT to mate SC with payload adapter 3 CALT to install clampband system and to engage SC LV In Flight Disconnectors IFD CALT and SC team to test and verify IFD CALT to unlock the separation springs 4 CALT to unbolt the payload adapter from the technological stand After SC team and CALT s approval SC team to lift up and move the SC Adapter stack to the base pad of the SC container CLTC to bolt the adapter with the base pad and SC team to verify SC s status 5 CLTC to integrate SC container 6 CALT to seal the SC container and to fill dry N2 into the SC container The SC Issue 1999 8 4 LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY container is ready for transfer to Launch Center Environmental Sensors are already installed on the inner side of the container which can measure and record the inner environmental parameters in real time d
4. LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY CHAPTER 8 LAUNCH SITE OPERATION 8 1 Briefing to 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 SC LV Combined Operations are conducted in technical center and launch center LM 3A provides a SC LV integration method i e Encapsulation on pad Details about the method are described in paragraph 8 3 8 2 LV Checkouts and Processing LM 3A launch vehicle is transported from CALT facility Beijing China to XSLC Sichuan Province China and undergoes various checkouts and processing in Technical Center and Launch Center of XSLC The typical LV working flow in the launch site is shown in Table 8 1 Issue 1999 8 1 LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY Table 8 1 LV Working Flow in the Launch Site Working Accumulative Period Period To Unload LV from the Train and Transfer LV to LV Test 1 day 1 day Building BL1 T E c H N I C A L Review on C
5. de the clean area Air conditioning to the fairing starts following encapsulation 8 3 2 SC LV Combined Operation 8 3 2 1 SC Container SC Container is a dedicated container used for transferring SC from Technical Center to Launch Center The available space of SC container is 3980mm in diameter 7450mm high and 92 6 m in volume The SC container is composed of a base pad and five cylindrical sections which can be assembled together Two guide poles are equipped outside the SC container The core of wall is made of aluminum and the outer surface and inner surface of the wall are covered by thermal proof materials See Figure 8 1 This SC Container is only used for Encapsulation on pad method CALT also provides small SC Container for selection The characteristics of the SC container are listed as follows SC Adapter stack is fastened inside the SC container Dry Nz is filled to the SC container the SC is protected by positive pressure The temperature inside the SC container is 24 6 C during transportation from BS3 to Service Tower SC container is of thermal proof function Issue 1999 8 3 LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY Temperature humidity noise and accelerations etc inside the SC container can be measured and recorded during transportation process m m Guide Pole Section 5 Section 4 Section 3 6600 Leense Section 2 SATELLITE CONTAINER SC
6. heckout Results 1 day 20 days 8 To Transfer LV to Launch Cemer iays 28 days EES 9 LV Venical Integration on the Launch Tower 2days 25days t A ar matching Test Among Subsystems say S days PEETER C H To Transfer SC and Fairing to Launch Center Separately 1 5 days 34 5 days SC LV Integration Fairing Encapsulation N OYUDMH Fueling 42 days LOX LH2 Fueling 0 5 day 42 5 days a imn stays 23 ays pow Pays 8 ays After SC is transferred to Launch Center some of SC and LV operations can be performed in parallel under conditions of no interference Issue 1999 8 2 LM 3A USER S MANUAL CHAPTER 8 CALT S PROPRIETARY 8 3 SC LV Combined Operations 8 3 1 Summary The SC LV combined operations are conducted in Technical Center and in Launch Center LM 3A provide a SC LV integration method called Encapsulation on pad The typical working procedure of Encapsulation on pad method is as follows 1 The payload adapter and fueled SC are mated in BS3 of the technical center 2 The SC adapter stack is put into the clean SC container which is then shipped to launch center 3 The SC container and fairing are hoisted to the 8 floor of the service tower in the launch center A clean area big closure is established here on the tower following the arrivals of SC container and fairing 4 The SC LV integration is performed on the 8 floor of the Service Tower 5 The fairing is finally encapsulated insi
7. mate the SC Adpater stack with LV 3rd stage 14 To Encapsulate the Fairing 15 To complete the integration a N a g Figure 8 5 SC LV Integration in Launch Center Encapsulation on pad Method 8 10 2 CALT S PROPRIETARY 8 4 Launch Limitation LM 3A USER S MANUAL CHAPTER 8 8 4 1 Weather Limitation The average ground wind velocity in the launch area is lower than 10m s The winds aloft limitation qxa lt 2500N 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 8 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 8 5 Pre launch Countdown Procedure The typical pre launch countdown procedure in the launch day is listed below No Time Event 1 7 hours LV third stage LOX LH Fueling 2 2 hours LV Control System Power on amp Functional Checkout 3 60 minutes LV Telemetry System Power on amp Functional Checkout 4 45 minutes Fairing air conditioning Stopping amp Air conditioning Pipe Disconnecting 5 40 minutes Accurately aiming Loadi
8. ng and Checking Flight Program Gas pipes for the first and second stages drop off 6 20 minutes LV third stage Engines Pre cooling 13 minutes LV third stage propellants topping 8 15 12 SC umbilical disconnection minutes 9 3 minutes Telemetry and Tracking Systems Power Switch over Issue 1999 CALT S PROPRIETARY LM 3A USER S MANUAL CHAPTER 8 LV third stage Propellant Fueling Pipe Disconnection 10 2 minutes Gas Pipe for third stage Disconnection 11 90 seconds Control System Power Switch over 12 60 seconds Control System Telemetry System and Tracking System Umbilical Disconnection 13 30 seconds TT amp C Systems Starting 14 7 seconds Camera on 15 0 seconds Ignition 8 6 Post launch Activities The orbital parameters of the injected orbit will be provided to Customer in half hours The LV flight report will be provided to the Customer in a month after launch Issue 1999
9. uring transfer to the Launch Center The SC LV integration process in BS3 is shown in Figure 8 2 8 3 2 3 SC Transfer CLTC is responsible for using special vehicle to transfer SC container to the Launch Center Following working procedures are then performed 7 CLTC to lift the SC container which already contained SC Adapter stack onto the special vehicle and to fasten the SC container with ropes 8 CLTC to drive the special vehicle from BS3 to Service Tower in Launch Center 9 CLTC to release the SC container from the transfer vehicle CLTC to lift the SC container up to the 8 floor of the Service Tower See Figure 8 3 and Figure 8 4 8 3 2 4 SC LV Integration in Launch Center The SC LV integration in Launch Center includes To mate Payload adapter with LV third stage To encapsulate the fairing CALT is responsible for LV third stage Adapter integration and fairing encapsulation in the clean big closure and SC team is responsible for SC lifting Following working procedures are performed 10 CLTC to close all the doors of the 8 floor and upper floors to form the clean area CLTC to open the SC container when the environmental conditions including temperature humidity and cleanness reach the SC requirements 11 CLTC unstacks the SC container 12 SC team to install the slings on the SC CLTC to unbolt the payload adapter from the base pad of the SC container 13 SC team to hoist and move the SC Adapter stack to
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