Autor Tema: STS-127 (space shuttle Endeavour-ISS assembly flight 2J/A)  (Posjeta: 28208 vremena)

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Offline Fire

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« Odgovori #10 u: 10.06.2009. u 15:36:11 sati »
Popis svih aktivnosti u zadnja 3 dana prije lansiranja ove misije.
.


STS-127 LAUNCH COUNTDOWN MILESTONES AND TIMES
(All times are Eastern)
June 4, 2009
 

Launch-3 Days (Wednesday, June 10)
Prepare for the start of the STS-127 launch countdown
Perform the call to stations (8:30 a.m.)
Countdown begins at the T-43 hour mark (9 a.m.)
Begin final vehicle and facility closeouts for launch
Check out backup flight systems
Review flight software stored in mass memory units and display systems
Load backup flight system software into Endeavour’s general purpose computers
Activate and test navigational systems (7 p.m.)
Complete preparations to load power reactant storage and distribution system (8 p.m.)

Launch-2 Days (Thursday, June 11)
Enter first built-in hold at T-27 hours for duration of 4 hours (1 a.m.)

Flight deck preliminary inspections complete (1 a.m.)
Clear launch pad of all nonessential personnel
Perform test of the vehicle's pyrotechnic initiator controllers

Resume countdown (5 a.m.)

Begin operations to load cryogenic reactants into Endeavour’s fuel cell storage tanks (1 p.m.)

Enter 4-hour built-in hold at T-19 hours (1 p.m.)

Demate orbiter mid-body umbilical unit (1:30 p.m.)
Resume orbiter and ground support equipment closeouts

Resume countdown (5 p.m.)

Final preparations of the shuttle's three main engines for main propellant tanking (5 p.m.)
Begin filling pad sound suppression system water tank (6 p.m.)
Main Engine avionics, pneumatics and controller checkout complete (7 p.m.)
Pad sound suppression system water tank filling complete (9 p.m.)

Launch-1 Day (Friday, June 12)
Begin star tracker functional checks (12:50 a.m.)

Enter planned hold at T-11 hours for 13 hours, 52 minutes (1 a.m.)

Activate orbiter's inertial measurement units
Activate the orbiter's communications systems
Move Rotating Service Structure to the park position (11 a.m.)
Perform ascent switch list
Fuel cell flow-through purge complete

Resume countdown at T-11 hours (2:52 p.m.)

Activate the orbiter's fuel cells (4:02 a.m.)
Clear the blast danger area of all nonessential personnel
Switch Endeavour's purge air to gaseous nitrogen (4:52 p.m.)

Enter planned 2-hour built-in hold at the T-6 hour mark (7:52 p.m.)

Launch team verifies no violations of launch commit criteria prior to cryogenic loading of the external tank
Clear pad of all personnel

Resume countdown (9:52 p.m.)

Chill down propellant transfer lines (9:52 p.m.)
Begin loading the external fuel tank with about 500,000 gallons of cryogenic propellants (about 10:02 p.m.)

Launch Day (Saturday, June 13)
Complete filling the external tank with its flight load of liquid hydrogen and liquid oxygen propellants (about 12:52 a.m.)
Final Inspection Team proceeds to launch pad
Perform inertial measurement unit preflight calibration
Align Merritt Island Launch Area tracking antennas

Enter planned 2-hour, 30-minute built-in hold at T-3 hours (12:52 a.m.)

Perform open loop test with Eastern Range

Resume countdown at T-3 hours (3:22 a.m.)

Crew departs Operations and Checkout Building for the pad (3:27 a.m.)
Complete closeout preparations in the White Room
Check cockpit switch configurations
Flight crew begins entry into the orbiter (3:52 a.m.)
Astronauts perform air-to-ground voice checks with Launch and Mission Control
Begin to close Endeavour’s crew hatch (5:02 a.m.)
Begin Eastern Range final network open loop command checks
Perform hatch seal and cabin leak checks
Complete White Room closeout
Closeout crew moves to fallback area
Primary ascent guidance data is transferred to the backup flight system

Enter planned 10-minute hold at T-20 minutes (6:02 a.m.)

NASA test director conducts final launch team briefings

Resume countdown at T-20 minutes (6:12 a.m.)

Transition the orbiter's onboard computers to launch configuration
Start fuel cell thermal conditioning
Close orbiter cabin vent valves
Transition backup flight system to launch configuration

Enter estimated 45-minute hold at T-9 minutes (6:23 a.m.)

Launch director, Mission Management Team and NASA test director conduct final polls for "go/no go" to launch

Resume countdown at T-9 minutes (7:08 a.m.)

Start automatic ground launch sequencer (T-9 minutes)
Retract orbiter crew access arm (T-7:30)
Start mission recorders (T-6:15)
Start auxiliary power units (T-5)
Arm solid rocket booster and external tank range safety safe and arm devices (T-5)
Start liquid oxygen drainback (T-4:55)
Start orbiter aerosurface profile test (T-3:55)
Start main engine gimbal profile test (T-3:30)
Pressurize liquid oxygen tank (T-2:55)
Begin retracting the gaseous oxygen vent arm (T-2:55)
Fuel cells to internal reactants (T-2:35)
Pressurize liquid hydrogen tank (T-1:57)
Deactivate bi-pod heaters (T-1:52)
Deactivate solid rocket booster joint heaters (T-0:50)
Orbiter transfers from ground to internal power (T-0:50 seconds)
Ground launch sequencer go for auto sequence start (T-0:31 seconds)
Booster gimbal profile (T-0:21 seconds)
Ignition of three space shuttle main engines (T-6.6 seconds)
Booster ignition and liftoff (T-0)

Preferred launch time: 7:17:15 a.m.

For the latest information on the STS-127 crew and mission, visit:

Offline Fire

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« Odgovori #11 u: 10.06.2009. u 15:49:07 sati »
Na ovoj slici se vidi cijeli teretni prostor shuttlea Endeavour...desno sa zatvorenim vratima.

.

Na nekoliko mjesta se vide hvataljke za robotsku ruku;


Offline Fire

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« Odgovori #12 u: 12.06.2009. u 19:39:06 sati »
Raspored TV-prijenosa za sutrašnje lansiranje. :P
Dakle po ovome bi start trebao biti u 13:17.
-->pojmovnik

Konfiguracija tereta u prtljažnom prostoru Endeavoura;


Ovo bi bila radna konfiguracija i tehničke specifikacije japanskog eksperimentalnog modula JEM-EF (Japanese Experiment Module – Exposed Facility) kada bude montiran na modul japanski modul ISS-a, KIBO;


Offline Fire

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« Odgovori #13 u: 12.06.2009. u 20:19:22 sati »
Ove "kutije" (EF-payload) sa strane JEM-EF  sa instrumentacijom će biti transportirane na posebnoj platformi ELM-ES (Experiment Logistics Module-Exposed Section) koja će nakon montaže EF-payloada biti vraćena na Zemlju.

Izgled same platforme bez "kutija";


Izgled i tehničke specifikacije platforme koja ukupno prima 3 EF-payload modula;



Platforma ELM-ES će biti spojena sa EF putem Payload Interface Unit (PIO) sučelja;

Offline Fire

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« Odgovori #14 u: 12.06.2009. u 20:30:05 sati »
Sama JEM-EF platforma će biti spojena na glavni eksperimentalni KIBO modul- Pressurized Module (PM) putem EFBM (Exposed Facility Berthing Mechanism) sučelja.
Putem ove veze ide el.napajanje, prijenos podataka i termalne kontrole EF-payload uređaja montiranih na EF-u.
Pasivni dio se nalazi na EF-u;


Aktivni dio se nalazai na PM-u pa sami spoj izgleda ovako;

Offline Fire

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« Odgovori #15 u: 12.06.2009. u 21:42:26 sati »
Preostali dio tereta bi bio ovaj Integrated Cargo Carrier – Vertical Light Deploy (ICC-VLD).
Ovdje se nalaze rezervni dijelovi za ISS;




Također će biti postavljena i 4 satelita u sklopu 2 projekta.

DRAGONSat (Dual RF Astrodynamic GPS Orbital Navigator Satellite) ;
http://www.nasa.gov/mission_pages/station/science/experiments/DRAGONSat.html
-2 kockasta pikosatelita
PARADIGM->...i AggieSat2->



Atmospheric Neutral Density Experiment - 2 (ANDE-2)
http://www.nasa.gov/mission_pages/station/science/experiments/ANDE-2.html
-2 sferna mikrosatelita promjera 50-ak cm i masa 25 i 50kg
-radi se o projektu ministarstva obrane

Izgledaju ovako nekako;


2 satelita se lansiraju putem ICU (Internal Cargo Unit) kontejnera koji se otvara nakon što se udalji od shuttlea na sigurnu udaljenost i na visini od oko 350km.

Lansiranje ICU kontejenra iz teretnog prostora shuttlea;



ICU nakon otvaranja;




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« Odgovori #16 u: 12.06.2009. u 22:01:24 sati »

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« Odgovori #17 u: 13.06.2009. u 10:34:02 sati »
Dakle odgođeno lansiranje za minimalno 96sati zbog curenja vodika na vanjskom tanku za gorivo.
Izgleda da se radi o sličnom ako ne i istom problemu koji je bio i na STS-119.
http://www.nasa.gov/mission_pages/shuttle/main/index.html
Citat:
Gaseous Hydrogen Leak Postpones Endeavour's Saturday Launch, Repair Options Evaluated
Sat, 13 Jun 2009 08:55:12 AM GMT+0200

The launch of space shuttle Endeavour's STS-127 mission to the International Space Station is on hold due to a leak associated with the gaseous hydrogen venting system outside the external fuel tank. The system is used to carry excess hydrogen safely away from the launch pad at NASA's Kennedy Space Center in Florida. At 12:26 a.m. EDT Saturday, managers officially scrubbed the launch for at least 96 hours.

The earliest the shuttle could be ready for liftoff is June 17, however there is a range conflict on that date with the scheduled launch of the Lunar Reconnaissance Orbiter/Lunar Crater Observation and Sensing Satellite from Cape Canaveral Air Force Station, Fla.

Mission managers will hold a meeting at 2 p.m. Sunday to discuss the repair options and Endeavour's launch attempt opportunities. A news conference will follow the meeting's conclusion and will air live on NASA Television and the agency Web site.

Tiskovna konferencija;
http://www.youtube.com/watch?v=64DyBePh9_Q

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« Odgovori #18 u: 13.06.2009. u 10:42:01 sati »
Ovo bi bio ventil čije brtve uzrokuju ove probleme;

Izvor;
http://damarisbsarria.blogspot.com/2009/03/sts-119-launch-targeted-for-march-11.html

A ovako izgleda puknuti ventil sa STS-126;

Izvor;
http://www.spaceflightnow.com/shuttle/sts119/090304date/


Očito da je ovo postao standardni problem zbog možda nekvalitetne izrade tog ventila. [70*

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« Odgovori #19 u: 13.06.2009. u 10:42:48 sati »
ICU nakon otvaranja;

Ova slika vodi na krivi link, odnosno na link od one iznad nje. A baš sam htio vidjeti te malecne satelitiće u slobodnom letu :shock:

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