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Old 11-22-2018, 07:18 PM   #1
Snax
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Default How to get in orbit at 600km with SSU

Hi, could someone explain to me how the Shuttle went to orbit at 600km to put Hubble upthere and how can I create a mission and scenario file for this.


I've seen videos where the Shuttle received a call to go at 109% instead 104%, I tried that but in the end I finish the ascent always around 160nm, I use the OMS to get at 600km, I may not comeback then lol

I already created my own STS-31, STS-61, STS,125 scenario files with the Shuttle, HST(ex), and the extras for the servicing mission in the cargohold with a launch at the historic times, but I fail to find and understand how they went so high in altitude.

The max I can go is to the ISS at 400km, I have barely enough toncome back to KSC, not even EDW.

Thanks in advance !
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Old 11-22-2018, 07:28 PM   #2
Urwumpe
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You need a custom mission file for that, it defines the trajectory right now.
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Old 11-22-2018, 07:37 PM   #3
Snax
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Hi Urwumpe, I guess a different one from the ones in the missions folder ?

Can you develop a bit more please or is it explained in the SSU manual?
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Old 11-22-2018, 07:52 PM   #4
GLS
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Quote:
Originally Posted by Snax View Post
 I've seen videos where the Shuttle received a call to go at 109% instead 104%,
Nop, those were probably abort boundaries, e.g. "Single Engine TAL 109", meaning if they lost 2 SSMEs, they could from that point on abort TAL if they throttled the remaining SSME to 109%. They didn't want, and never did, to run the SSMEs at 109%, but it's better than swimming in the Atlantic...

Anyway, to get up to the "Hubble altitudes" you need a direct insertion ascent and proper MECO targets.

Targets to a 600Km circular orbit*:
(for the mission file)
Code:
TargetInc=28.450000
TargetLAN=0.000000
MECOAlt=116676.000000
MECOVel=7960.887501
MECOFPA=1.470911
... and the OMS-2 targets:
Code:
MET: 41:47
dVx: 509.308 (I think it is in fps)

*) Disclaimer: the current ascent guidance isn't perfect, and the DAP is unstable in pitch near MECO, so the post-MECO apogee could be off some distance. Plus, if the frame rate is low at MECO, it will overburn a little bit, so the apogee could be higher. And last, because in Orbiter the Earth is a perfect sphere, the launch pad isn't in the correct place but further north, so launching into a 28.45 orbit requires a "dog-leg" half-way up, which eats a little bit of performance.

The last point makes rendezvous a bit tricky due to the possible LAN errors that will occur (we don't target LAN yet), but STS-31 should work. Oh, top up the OMS and don't play a lot with the RCS or you'll end up in trouble...

---------- Post added at 07:52 PM ---------- Previous post was at 07:51 PM ----------

Quote:
Originally Posted by Snax View Post
 Can you develop a bit more please or is it explained in the SSU manual?
The mission files, and their parameters are detailed in the manual.
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Old 11-22-2018, 08:12 PM   #5
DaveS
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STS-31 actually launched into an orbit measuring 330 n.miX35 n.mi. Converted that is 611.16x64.82 km. OMS-2 brought the perigee up to 311 n.mi (575.972 km) with a TIG of 42 minutes and 37 seconds.
At MET 000/07:09:15, the crew executed a manual +X RCS maneuver that brought up the perigee to 331 n.mi (613.012 km), circularizing the orbit. This was a 33.5 fps dVTot burn lasting 2 minutes, 17 seconds.
This is all details from the STS-31 Mission Report.

Last edited by DaveS; 11-22-2018 at 08:16 PM.
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Old 11-22-2018, 08:23 PM   #6
Urwumpe
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Quote:
Originally Posted by DaveS View Post
 This is all details from the STS-31 Mission Report.

Off-topic but: What is an Argus aircraft?
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Old 11-23-2018, 01:14 AM   #7
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Could MECOCalc be changed so that it outputs the OMS burn targets in PEG 4 and not PEG 7 format? This would make it fit the Ascent FDFs, which lists the all the OMS burn targets in PEG 4 format.

---------- Post added at 02:14 AM ---------- Previous post was at 01:08 AM ----------

Here's a mission file for STS-31R that should work with BrianJ's HSTEx add-on:

Code:
Name=STS-31R
Orbiter=Discovery
OrbiterTexture=Discovery_original
LOMSPodTexture=PORT_OMSpod_hires
ROMSPodTexture=STBD_OMSpod_hires
ET=LWT
ETFRL=FALSE
SRM=RSRM
LaunchSite=KSC
LaunchPad=LC-39B
MLP=2
TargetInc=28.500000
TargetLAN=0.000000
MECOAlt=105000.000000
MECOVel=7973.300272
MECOFPA=1.359098
PerformRollToHeadsUp=FALSE
OMSAssistEnable=FALSE
OMSAssistDuration=59.000000
MaxSSMEThrust=104.0
UseRMS=TRUE
UseKUBand=TRUE
UseSTBDMPM=FALSE
UseODS=FALSE
UseExtAL=FALSE
UseTAA=FALSE
AftTAA=FALSE
HasBulkheadFloodlights=TRUE
HasDragChute=FALSE
HasPLBLiner=FALSE
Bridgerails=2,5; Longeron bridge panels in Bays 3 and 6. Bay 3 is bridge rail panels only, no latches. Bay 6 have panels with active latches with V-guides. Bay 6 should also have an active keel latch assembly but we don't render those at the moment.
PayloadZPos6=-1.25
SILTS=FALSE
LogSSMEData=FALSE
UseCISS=FALSE
CISS_GPrime=TRUE
UseASE_IUS=FALSE
ASE_IUS_AftLocation=FALSE
InternalPRSDTankSets=3
HasEDOKit=FALSE
EDOPallets=0
And here's a launch scenario that starts at L-10 minutes:
Code:
BEGIN_DESC
Launch Discovery carrying the Hubble Space Telescope at 12:33:51 UTC.
600km circular orbit at 28.45deg inc.equatorial.
END_DESC

BEGIN_ENVIRONMENT
  System Sol
  Date MJD 48006.516563
  Context SSU
END_ENVIRONMENT

BEGIN_FOCUS
  Ship Discovery
END_FOCUS

BEGIN_CAMERA
  TARGET Discovery
  MODE Extern
  POS 7.68 -0.56 -93.02
  TRACKMODE Ground Earth
  GROUNDLOCATION -80.61808 28.62941 4.75
  GROUNDDIRECTION 222.20 8.37
  FOV 10.00
  BEGIN_PRESET
    Ground:Discovery:20.00:Earth -80.61684 28.62708 14.72 3.13 0.09
    Ground:Discovery:10.00:Earth -80.61975 28.62825 32.00 3.97 0.30
    Ground:Discovery:10.00:Earth -80.62121 28.62710 71.37 6.47 -0.21
    Ground:Discovery:20.00:Earth -80.62401 28.62930 8.21 5.63 0.10
    Ground:Discovery:10.00:Earth -80.61808 28.62941 4.75 3.88 0.15
  END_PRESET
END_CAMERA

BEGIN_MFD Left
  TYPE User
  MODE CRT
END_MFD

BEGIN_MFD Right
  TYPE User
  MODE CRT
END_MFD

BEGIN_MFD 3
  TYPE User
  MODE CRT
END_MFD

BEGIN_MFD 4
  TYPE User
  MODE CRT
END_MFD

BEGIN_MFD 5
  TYPE User
  MODE CRT
END_MFD

BEGIN_MFD 6
  TYPE User
  MODE CRT
END_MFD

BEGIN_MFD 7
  TYPE User
  MODE CRT
END_MFD

BEGIN_MFD 9
  TYPE User
  MODE CRT
END_MFD

BEGIN_MFD 10
  TYPE User
  MODE CRT
END_MFD

BEGIN_VC
END_VC

BEGIN_SHIPS
LC39B:SSU_Pad
  STATUS Landed Earth
  POS -80.6208620 28.6272150
  HEADING 270.00
  AFCMODE 7
  PRPLEVEL 0:1.000000
  THLEVEL 2:1.000000 3:1.000000 4:1.000000 5:1.000000 6:1.000000
  NAVFREQ 0 0
  OAA 1 1.0000
  GVA 1 1.0000
  VENT_HOOD 1 1.0000
  ETVAS 1 1.0000
  IAA 0 0.0000
  RSS 0 0.0000
  FSS_OWP 0 0.0000
  RSS_OWP 0 0.0000
  EAST_SRB_SFD 1 1.0000
  WEST_SRB_SFD 1 1.0000
  LCC_NAME LCC
END
MLP-3:SSU_MLP
  STATUS Landed Earth
  POS -80.6040620 28.6084030
  HEADING 0.00
  ATTACHED 0:0,LC39B
  AFCMODE 7
  NAVFREQ 0 0
  T0_UMB 1 1.0000
END
LCC:SSU_LCC
  STATUS Landed Earth
  POS -80.6493245 28.5852249
  HEADING 35.60
  AFCMODE 7
  NAVFREQ 0 0
  LAUNCH_MJD 48006.523507
  PAD_NAME LC39B
END
Discovery:SpaceShuttleUltra
  STATUS Landed Earth
  POS -80.6232502 28.6197342
  HEADING 0.00
  ATTACHED 0:0,MLP-3
  AFCMODE 7
  PRPLEVEL 1:1.000000 2:0.978149 3:1.000000 4:1.000000 5:1.000000 6:1.000000 7:1.000000 8:0.879094 11:0.020000
  THLEVEL 3:1.000000 4:1.000000 5:1.000000
  NAVFREQ 0 0
  MISSION STS-31R
  CONFIGURATION 0
  GEAR 0 0.0000
  OPS 101
  PLB_CAM 0 -90.00000 -0.0 90.0000 0.0000 -90.0000 0.000 90.0000
@SUBSYSTEM HeEng_C
  PRESS 4200
  VALVES 1 1 0 0
@ENDSUBSYSTEM		;HeEng_C
@SUBSYSTEM HeEng_L
  PRESS 4200
  VALVES 1 1 0 0
@ENDSUBSYSTEM		;HeEng_L
@SUBSYSTEM HeEng_R
  PRESS 4200
  VALVES 1 1 0 0
@ENDSUBSYSTEM		;HeEng_R
@SUBSYSTEM HePneu
  PRESS 4200
  VALVES 1 1 0 
@ENDSUBSYSTEM		;HePneu
@SUBSYSTEM MPS_C
  SSME config 1
  VIE config 1
  DCU_chA config 1
  DCU_chB config 1
  CIE_chA config 1
  CIE_chB config 1
@ENDSUBSYSTEM		;MPS_C
@SUBSYSTEM MPS_L
  SSME config 1
  VIE config 1
  DCU_chA config 1
  DCU_chB config 1
  CIE_chA config 1
  CIE_chB config 1
@ENDSUBSYSTEM		;MPS_L
@SUBSYSTEM MPS_R
  SSME config 1
  VIE config 1
  DCU_chA config 1
  DCU_chB config 1
  CIE_chA config 1
  CIE_chB config 1
@ENDSUBSYSTEM		;MPS_R
@SUBSYSTEM FMC1
@ENDSUBSYSTEM		;FMC1
@SUBSYSTEM FMC2
@ENDSUBSYSTEM		;FMC2
@SUBSYSTEM FMC3
@ENDSUBSYSTEM		;FMC3
@SUBSYSTEM MMC1
@ENDSUBSYSTEM		;MMC1
@SUBSYSTEM MMC2
@ENDSUBSYSTEM		;MMC2
@SUBSYSTEM MMC3
@ENDSUBSYSTEM		;MMC3
@SUBSYSTEM MMC4
@ENDSUBSYSTEM		;MMC4
@SUBSYSTEM AMC1
@ENDSUBSYSTEM		;AMC1
@SUBSYSTEM AMC2
@ENDSUBSYSTEM		;AMC2
@SUBSYSTEM AMC3
@ENDSUBSYSTEM		;AMC3
@SUBSYSTEM FF1
@ENDSUBSYSTEM		;FF1
@SUBSYSTEM FF2
@ENDSUBSYSTEM		;FF2
@SUBSYSTEM FF3
@ENDSUBSYSTEM		;FF3
@SUBSYSTEM FF4
@ENDSUBSYSTEM		;FF4
@SUBSYSTEM FA1
@ENDSUBSYSTEM		;FA1
@SUBSYSTEM FA2
@ENDSUBSYSTEM		;FA2
@SUBSYSTEM FA3
@ENDSUBSYSTEM		;FA3
@SUBSYSTEM FA4
@ENDSUBSYSTEM		;FA4
@SUBSYSTEM PL1
@ENDSUBSYSTEM		;PL1
@SUBSYSTEM PL2
@ENDSUBSYSTEM		;PL2
@SUBSYSTEM LF1
@ENDSUBSYSTEM		;LF1
@SUBSYSTEM LM1
@ENDSUBSYSTEM		;LM1
@SUBSYSTEM LA1
@ENDSUBSYSTEM		;LA1
@SUBSYSTEM OF1
@ENDSUBSYSTEM		;OF1
@SUBSYSTEM OF2
@ENDSUBSYSTEM		;OF2
@SUBSYSTEM OF3
@ENDSUBSYSTEM		;OF3
@SUBSYSTEM OF4
@ENDSUBSYSTEM		;OF4
@SUBSYSTEM OA1
@ENDSUBSYSTEM		;OA1
@SUBSYSTEM OA2
@ENDSUBSYSTEM		;OA2
@SUBSYSTEM OA3
@ENDSUBSYSTEM		;OA3
@SUBSYSTEM LL1
@ENDSUBSYSTEM		;LL1
@SUBSYSTEM LL2
@ENDSUBSYSTEM		;LL2
@SUBSYSTEM LR1
@ENDSUBSYSTEM		;LR1
@SUBSYSTEM LR2
@ENDSUBSYSTEM		;LR2
@SUBSYSTEM EIU1
@ENDSUBSYSTEM		;EIU1
@SUBSYSTEM EIU2
@ENDSUBSYSTEM		;EIU2
@SUBSYSTEM EIU3
@ENDSUBSYSTEM		;EIU3
@SUBSYSTEM MTU
  MET_RUNNING 0
  MET0 0.000000
  MET1 0.000000
  MET2 0.000000
@ENDSUBSYSTEM		;MTU
@SUBSYSTEM IDP1
  IDP1 SPEC 65535
  IDP1 DISP 65535
@ENDSUBSYSTEM		;IDP1
@SUBSYSTEM IDP2
  IDP2 SPEC 65535
  IDP2 DISP 18
@ENDSUBSYSTEM		;IDP2
@SUBSYSTEM IDP3
  IDP3 SPEC 65535
  IDP3 DISP 18
@ENDSUBSYSTEM		;IDP3
@SUBSYSTEM IDP4
  IDP4 SPEC 65535
  IDP4 DISP 65535
@ENDSUBSYSTEM		;IDP4
@SUBSYSTEM IMU1
@ENDSUBSYSTEM		;IMU1
@SUBSYSTEM IMU2
@ENDSUBSYSTEM		;IMU2
@SUBSYSTEM IMU3
@ENDSUBSYSTEM		;IMU3
@SUBSYSTEM GPC1
@ENDSUBSYSTEM		;GPC1
@SUBSYSTEM GPC2
@ENDSUBSYSTEM		;GPC2
@SUBSYSTEM GPC3
@ENDSUBSYSTEM		;GPC3
@SUBSYSTEM GPC4
@ENDSUBSYSTEM		;GPC4
@SUBSYSTEM GPC5
@ENDSUBSYSTEM		;GPC5
@SUBSYSTEM MMU1
@ENDSUBSYSTEM		;MMU1
@SUBSYSTEM MMU2
@ENDSUBSYSTEM		;MMU2
@SUBSYSTEM SimpleGPCSystem
  @BEGINSOFTWARE ATVC_SOP
  CONFIG 0
  @ENDSOFTWARE 
@ENDSUBSYSTEM		;SimpleGPCSystem
@SUBSYSTEM ODS
  RING_STATE -1 0.0000
@ENDSUBSYSTEM		;ODS
@SUBSYSTEM ADPS
  LEFT_AIRDATAPROBE 1 3 0
  RIGHT_AIRDATAPROBE 1 3 0
@ENDSUBSYSTEM		;ADPS
@SUBSYSTEM ETUmbDoors
  ET_DOORS 1.000000 1.000000
  ET_DOOR_LATCHES 0.000000 1.000000 1.000000
@ENDSUBSYSTEM		;ETUmbDoors
@SUBSYSTEM -YStarTrackerDoorMotor
@ENDSUBSYSTEM		;-YStarTrackerDoorMotor
@SUBSYSTEM -ZStarTrackerDoorMotor
@ENDSUBSYSTEM		;-ZStarTrackerDoorMotor
@SUBSYSTEM ACBusSystem
@ENDSUBSYSTEM		;ACBusSystem
@SUBSYSTEM INVERTER1
@ENDSUBSYSTEM		;INVERTER1
@SUBSYSTEM INVERTER2
@ENDSUBSYSTEM		;INVERTER2
@SUBSYSTEM INVERTER3
@ENDSUBSYSTEM		;INVERTER3
@SUBSYSTEM PayloadBay
  DOOR_PORT 0 0.0000
  DOOR_STBD 0 0.0000
  RADIATOR_PORT 0 0.0000
  RADIATOR_STBD 0 0.0000
  RADLATCH_PORT 0 0.0000
  RADLATCH_STBD 0 0.0000
  DOORLATCH0 0 0.0000
  DOORLATCH1 0 0.0000
  DOORLATCH2 0 0.0000
  DOORLATCH3 0 0.0000
  DOORLATCH4 0 0.0000
  DOORLATCH5 0 0.0000
  DOORLATCH6 0 0.0000
  DOORLATCH7 0 0.0000
  KUBAND 0 0.0000
@ENDSUBSYSTEM		;PayloadBay
@SUBSYSTEM APU1
  APU1_State 0
  APU1_FuelPress 0.000000
  APU1_HydPress 0.000000
  APU1_Speed 0.000000
@ENDSUBSYSTEM		;APU1
@SUBSYSTEM APU2
  APU2_State 0
  APU2_FuelPress 0.000000
  APU2_HydPress 0.000000
  APU2_Speed 0.000000
@ENDSUBSYSTEM		;APU2
@SUBSYSTEM APU3
  APU3_State 0
  APU3_FuelPress 0.000000
  APU3_HydPress 0.000000
  APU3_Speed 0.000000
@ENDSUBSYSTEM		;APU3
@SUBSYSTEM WSB1
@ENDSUBSYSTEM		;WSB1
@SUBSYSTEM WSB2
@ENDSUBSYSTEM		;WSB2
@SUBSYSTEM WSB3
@ENDSUBSYSTEM		;WSB3
@SUBSYSTEM LATCH0
  LATCH_STATE1 1 1.0000
  LATCH_STATE2 1 1.0000
  LATCH_STATE3 1 1.0000
  LATCH_STATE4 1 1.0000
  LATCH_STATE5 1 1.0000
@ENDSUBSYSTEM		;LATCH0
@SUBSYSTEM LATCH1
  LATCH1_ATTACHED_PAYLOAD HST 0
  LATCH_STATE1 0 0.0000
  LATCH_STATE2 0 0.0000
  LATCH_STATE3 0 0.0000
  LATCH_STATE4 0 0.0000
  LATCH_STATE5 0 0.0000
@ENDSUBSYSTEM		;LATCH1
@SUBSYSTEM LATCH2
  LATCH_STATE1 1 1.0000
  LATCH_STATE2 1 1.0000
  LATCH_STATE3 1 1.0000
  LATCH_STATE4 1 1.0000
  LATCH_STATE5 1 1.0000
@ENDSUBSYSTEM		;LATCH2
@SUBSYSTEM RMS
  ARM_STATUS 0.500000 0.013605 0.014688 0.500000 0.500000 0.500000
  SHOULDER_BRACE 1.000000
  GRAPPLE 1 1.0000
  RIGIDIZE 1 1.0000
  EXTEND 1 1.0000
  RMS_ELBOW_CAM 0.0000 0.0000
  RMS_ROLLOUT 0 0.0000
  RMS_LATCHES 0 0.0000
@ENDSUBSYSTEM		;RMS
@SUBSYSTEM STBD_MPM
  STBD_MPM_ROLLOUT 0 0.0000
  STBD_MPM_LATCHES 0 0.0000
@ENDSUBSYSTEM		;STBD_MPM
  @PANEL F2
  @ENDPANEL 
  @PANEL F4
  @ENDPANEL 
  @PANEL F6
  @OBJECT "CDR1"
  DISPLAY 3
  MENU 2
  @ENDOBJECT
  @OBJECT "CDR2"
  DISPLAY 1
  MENU 1
  @ENDOBJECT
  "Cdr Flt Cntlr Pwr" ON
  @ENDPANEL 
  @PANEL F7
  @OBJECT "CRT1"
  DISPLAY 0
  MENU 3
  @ENDOBJECT
  @OBJECT "CRT2"
  DISPLAY 0
  MENU 3
  @ENDOBJECT
  @OBJECT "CRT3"
  DISPLAY 0
  MENU 3
  @ENDOBJECT
  @OBJECT "MFD1"
  DISPLAY 4
  MENU 2
  @ENDOBJECT
  @OBJECT "MFD2"
  DISPLAY 3
  MENU 2
  @ENDOBJECT
  "Event Time" 540 0.000000 0 0
  @ENDPANEL 
  @PANEL F8
  @OBJECT "PLT1"
  DISPLAY 1
  MENU 1
  @ENDOBJECT
  @OBJECT "PLT2"
  DISPLAY 4
  MENU 2
  @ENDOBJECT
  "Plt Flt Cntlr Pwr" ON
  @ENDPANEL 
  @PANEL R2
  "Boiler1 N2 Supply" ON
  "Boiler2 N2 Supply" ON
  "Boiler3 N2 Supply" ON
  "Boiler1 Power" ON
  "Boiler2 Power" ON
  "Boiler3 Power" ON
  "Boiler1 Cntlr/Htr" A
  "Boiler2 Cntlr/Htr" A
  "Boiler3 Cntlr/Htr" A
  "APU1 Operate" OFF
  "APU2 Operate" OFF
  "APU3 Operate" OFF
  "Hyd Main Pump Press 1" LOW
  "Hyd Main Pump Press 2" LOW
  "Hyd Main Pump Press 3" LOW
  "APU1 Cntlr Pwr" OFF
  "APU2 Cntlr Pwr" OFF
  "APU3 Cntlr Pwr" OFF
  "APU1 Fuel Tank Valve" CLOSE
  "APU2 Fuel Tank Valve" CLOSE
  "APU3 Fuel Tank Valve" CLOSE
  "ET Umb Centerline Latch" GND
  "ET Umb Left Door" OFF
  "ET Umb Left Door Latch" OFF
  "ET Umb Right Door" OFF
  "ET Umb Right Door Latch" OFF
  "MPS Pwr Left AC2" [1]
  "MPS Pwr Ctr AC1" [1]
  "MPS Pwr Right AC3" [1]
  "MPS Pwr Left AC3" [1]
  "MPS Pwr Ctr AC2" [1]
  "MPS Pwr Right AC1" [1]
  "MPS He Isol A Left" OPEN
  "MPS He Isol A Ctr" OPEN
  "MPS He Isol A Right" OPEN
  "MPS He Isol B Left" OPEN
  "MPS He Isol B Ctr" OPEN
  "MPS He Isol B Right" OPEN
  "MPS PRPLT Dump Sequence" GPC
  "MPS PRPLT Backup LH2 vlv" GPC
  "Pneu L Eng He XOVR" GPC
  "Pneu He Isol" OPEN
  "He Interconnect Left" GPC
  "He Interconnect Ctr" GPC
  "He Interconnect Right" GPC
  "LH2 Ullage Press" AUTO
  @ENDPANEL 
  @PANEL C3
  "LOMS Arm" ARM/PRESS
  "ROMS Arm" ARM/PRESS
  "BFC CRT Display" ON
  "BFC CRT Select" 2+3
  "LADP Stow Enable" INHIBIT
  "RADP Stow Enable" INHIBIT
  "LADP Deploy" STOW
  "RADP Deploy" STOW
  "MAIN ENGINE LIMIT SHUT DN" AUTO
  "SSME Left S/D PB Cover" [0]
  "SSME Ctr S/D PB Cover" [0]
  "SSME Right S/D PB Cover" [0]
  "SRB Separation" AUTO
  "SRB Separation PB Cover" [0]
  "ET Separation" AUTO
  "ET Separation PB Cover" [0]
  @ENDPANEL 
  @PANEL O6
  "L GLRSHLD FLOOD" VAR
  "S TRK DR CNTL SYS1 Cover" [0]
  "S TRK DR CNTL SYS2 Cover" [0]
  "S TRK DR CNTL SYS1" OFF
  "S TRK DR CNTL SYS2" OFF
  "GPC_POWER_1_COVER" [0]
  "GPC_POWER_2_COVER" [0]
  "GPC_POWER_3_COVER" [0]
  "GPC_POWER_4_COVER" [0]
  "GPC_POWER_5_COVER" [0]
  "GPC POWER 1" ON
  "GPC POWER 2" ON
  "GPC POWER 3" ON
  "GPC POWER 4" ON
  "GPC POWER 5" ON
  "GPC_OUTPUT_1_COVER" [0]
  "GPC_OUTPUT_2_COVER" [0]
  "GPC_OUTPUT_3_COVER" [0]
  "GPC_OUTPUT_4_COVER" [0]
  "GPC_OUTPUT_5_COVER" [0]
  "GPC OUTPUT 1" NORMAL
  "GPC OUTPUT 2" NORMAL
  "GPC OUTPUT 3" NORMAL
  "GPC OUTPUT 4" NORMAL
  "GPC OUTPUT 5" BACKUP
  "IPL SOURCE" OFF
  "GPC MODE 1" RUN
  "GPC MODE 2" RUN
  "GPC MODE 3" RUN
  "GPC MODE 4" RUN
  "GPC MODE 5" RUN
  @ENDPANEL 
  @PANEL R11
  @ENDPANEL 
  @PANEL R13L
  "PL Bay Door SYS 1" DISABLE
  "PL Bay Door SYS 2" DISABLE
  "PL Bay Mech PWR SYS 1" OFF
  "PL Bay Mech PWR SYS 2" OFF
  "PL Bay Door" STOP
  "Latch Control SYS A" OFF
  "Latch Control SYS B" OFF
  "Radiator Control SYS A" OFF
  "Radiator Control SYS B" OFF
  "KU Antenna Direct Stow" OFF
  "KU Antenna" GND
  @ENDPANEL 
  @PANEL A6U
  "SENSE" -X
  "Aft Flt Cntlr Pwr" OFF
  "Payload Ret Latch 1" OFF
  "Payload Ret Latch 2" OFF
  "Payload Ret Latch 3" OFF
  "Payload Ret Latch 4" OFF
  "Payload Ret Latch 5" OFF
  "Payload Select" 1
  @ENDPANEL 
  @PANEL AftMDU
  @ENDPANEL 
  @PANEL A7U
  @ENDPANEL 
  @PANEL A7A3/A8A3
  "SYSTEM POWER MNA" [1]
  "SYSTEM POWER MNB" [1]
  "PYRO POWER MNA" [0]
  "PYRO POWER MNC" [0]
  "SYS1 VENT ISOL" [1]
  "SYS1 VENT" [1]
  "SYS2 VENT ISOL" [1]
  "SYS2 VENT" [1]
  "PSU POWER MNA" [0]
  "PSU POWER MNB" [0]
  "LIGHTS AIRLOCK 1-4" [0]
  "LIGHTS AIRLOCK 2-3" [0]
  "LIGHTS DOCKING TRUSS FWD" [0]
  "LIGHTS DOCKING TRUSS AFT" [0]
  "ARLK/TNL FAN A" [0]
  "ARLK/TNL FAN B" [0]
  "LIGHTS C/L VESTIBULE PORT" [0]
  "LIGHTS C/L VESTIBULE STBD" [0]
  "CNTL PNL PWR A" OFF
  "CNTL PNL PWR B" OFF
  "CNTL PNL PWR C" OFF
  "HTRS/DCU PWR H1" OFF
  "HTRS/DCU PWR H2/DCU" OFF
  "HTRS/DCU PWR H3/DCU" OFF
  "APDS PWR A" OFF
  "APDS PWR B" OFF
  "APDS PWR C" OFF
  "PYROS Ap" OFF
  "PYROS Bp" OFF
  "PYROS Cp" OFF
  @ENDPANEL 
  @PANEL A8
  "Port MPM Deploy Cover" [0]
  "Stbd MPM Deploy Cover" [0]
  "Port RMS Latches" OFF
  "Stbd MPM Latches" OFF
  "Port MPM Deploy" OFF
  "Stbd MPM Deploy" OFF
  "EE Mode" OFF
  "RMS SELECT" OFF
  "Parameter" POSITION
  "Joint" SHOULDER_YAW
  "RMS Mode" OPR_CMD
  @ENDPANEL 
  @PANEL A1U
  "SLEW RATE" SLOW
  "CONTROL" PANEL
  "STEERING MODE" MAN SLEW
  "POWER" OFF
  "MODE" RDR PASSIVE
  "RADAR OUTPUT" LOW
  @ENDPANEL 
END
ET:SSU_LWT
  STATUS Landed Earth
  POS 0.0000000 0.0000000
  HEADING 0.00
  PRPLEVEL 0:0.996000
  ATTACHED 0:20,Discovery
  AFCMODE 7
END
LSRB:SSU_LSRB_RSRM
  STATUS Landed Earth
  POS 0.0000000 0.0000000
  HEADING 0.00
  ATTACHED 0:21,Discovery
  AFCMODE 7
  PRPLEVEL 1:1.000000
  SECTION_COUNT 5
END
RSRB:SSU_RSRB_RSRM
  STATUS Landed Earth
  POS -0.0000000 -0.0000000
  HEADING -0.00
  ATTACHED 0:22,Discovery
  AFCMODE 7
  PRPLEVEL 1:1.000000
  SECTION_COUNT 5
END
HST:HST_EX/hst_ex
  STATUS Orbiting Earth
  RPOS 5882581.87 1605291.41 -2607587.24
  RVEL 2875.479 884.413 7160.622
  AROT -98.99 -17.50 -18.66
  ATTACHED 0:6,Discovery
  AFCMODE 7
  NAVFREQ 0 0
  SNSH 0 0.0000
  SP1P 0 2 2 1.0000 0.0000 1.0000
  SP1S 0 2 2 1.0000 0.0000 1.0000
  SAC 0 0 0
  HGAD 0 0.0000
  HGAR 0.0000 0.0000 0.0000 0.0000
  FG2 0 0.0000 0 0.0000
  FG1 0 0.0000 0 0.0000
  STR 0 0.0000 0 0.0000
  PV2 0 0.0000 0 0.0000
  NV2 0 0.0000 0 0.0000
  INM GHRS FOS FOC HSP
  TGN Moon
  AUTP 0 0
  MSHS 0 0 0 0 0 0 0
  MMSH 0 0 0
  RADC 0.000000 0.000000 0 0 0 0 0 0
END
END_SHIPS

Last edited by DaveS; 11-23-2018 at 01:22 AM. Reason: Updated the mission file with corrected longerong bridge panel locations
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Old 11-23-2018, 01:16 AM   #8
Snax
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Thank you all for your answers.

So this is MECOAlt, MECOVel, MECOFPA that need to be edited.

Ok I never bothered to change the value as I feared I would wreck all the data !
But given a thought about it, is:
  • MECOAlt in nautical miles, as 116676 could be 116.676nm wich would be 216km of altitude ? That makes sense in a way.
  • MECOVel, I guess, could be in m/s as 7960.887501m/s seems logical for an orbital speed
  • MECOFPA, that one I don't know, maybe Flight Path Angle ? I don't know if that make sense in space, I've only seen this in airliner's autopilots.

About that MECOCalc, is there a way to get it if this is a tool that can help to create mission files or is it only for devs ?

Last edited by Snax; 11-23-2018 at 01:19 AM.
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Old 11-23-2018, 01:41 AM   #9
DaveS
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Quote:
Originally Posted by Snax View Post
 About that MECOCalc, is there a way to get it if this is a tool that can help to create mission files or is it only for devs ?
If you have an SVN checkout of the SSU files, then you should have it. It's in the Orbitersdk\Space Shuttle Ultra subfolder under the name MECOTool.exe.


It's rather simple to use. The only parameters that work at the moment are Target Inc and Target Alt and Mode. Inc is the desired inclination in degress and altitude is the desired OMS-2 apogee altitude in km. Mode is to select if you want calculate for a Standard Insertion trajectory which will require an OMS-1 burn shortly after MECO or a Direct Insertion trajectory that requires only an OMS-2 burn at apogee.

Once you have inputted these, just press the Calculate button and it will output the correct parameters ready to be copy&pasted into the mission file. Just be sure to select SSU Mission File first.
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Old 11-23-2018, 02:38 AM   #10
Donamy
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Will this fly it auto ?
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Old 11-23-2018, 05:01 AM   #11
Snax
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Quote:
Originally Posted by DaveS View Post
 If you have an SVN checkout of the SSU files, then you should have it. It's in the Orbitersdk\Space Shuttle Ultra subfolder under the name MECOTool.exe.
Ah thanks I didn't think to check it here, thought everything would be in the docs folder.
Thanks again for these explaination !
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Old 11-23-2018, 09:20 AM   #12
GLS
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Quote:
Originally Posted by DaveS View Post
 Could MECOCalc be changed so that it outputs the OMS burn targets in PEG 4 and not PEG 7 format? This would make it fit the Ascent FDFs, which lists the all the OMS burn targets in PEG 4 format.
Everything is possible.... we just don't have anyone to do it....

BTW: The following scenario blocks are not needed:
@SUBSYSTEM STBD_MPM
@PANEL A7A3/A8A3

---------- Post added at 09:19 AM ---------- Previous post was at 09:05 AM ----------

Quote:
Originally Posted by Snax View Post
 MECOAlt in nautical miles, as 116676 could be 116.676nm wich would be 216km of altitude ? That makes sense in a way.[*]MECOVel, I guess, could be in m/s as 7960.887501m/s seems logical for an orbital speed[*]MECOFPA, that one I don't know, maybe Flight Path Angle ? I don't know if that make sense in space, I've only seen this in airliner's autopilots.
The MECO targets are in metric, although it should be imperial... but they probably weren't specified in this format, so...
FPA is indeed Flight Path Angle, which controls how much the vehicle is rising at MECO.

Quote:
Originally Posted by Snax View Post
 About that MECOCalc, is there a way to get it if this is a tool that can help to create mission files or is it only for devs ?
The MECOTool is deprecated in favor of SSU Workbench, which is in the Orbitersdk folder (and needs to be compiled, as it isn't in a releasable state). The idea behind SSUW is to create and edit mission files and then create scenarios from them... but it is far from finished.

BTW: here are some updated MECO targets, based on the info posted by DaveS:
TargetInc=28,450000
TargetLAN=0,000000
MECOAlt=105564,000000
MECOVel=7979,516421
MECOFPA=1,241623

OMS-2 to circularize (which is not what happened):
MET: 000:00:43:25
dVx: 510.892fps

---------- Post added at 09:20 AM ---------- Previous post was at 09:19 AM ----------

Quote:
Originally Posted by Donamy View Post
 Will this fly it auto ?
Until MECO, yes.
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Old 11-23-2018, 05:25 PM   #13
Snax
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It did it, thanks again !

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Old 12-03-2018, 06:05 PM   #14
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Would it be possible to share the scenarios for the servicing missions with the ORUC loaded in the SSU PB?
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Old 12-04-2018, 01:10 AM   #15
DaveS
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Here's the STS-31R files for SSU: https://www.dropbox.com/s/81tys2nqc0...STS31.zip?dl=0
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