orb
New member
- Joined
- Oct 30, 2009
- Messages
- 14,020
- Reaction score
- 4
- Points
- 0
Arianespace will place into geostationary transfer orbit two communications satellite on its sixth launch of the year and 199th Ariane mission: Hispasat 1E for the Spanish operator Hispasat, and Koreasat 6 for the Korea Telecom Corporation.
This will be the 55th Ariane 5 launch. The launcher will be carrying a total payload of 9259 kg, including 8170 kg for the Hispasat 1E and Koreasat 6 satellites, which will be released into their targeted orbits.
The launch will be from Ariane Launch Complex No. 3 (ELA 3) in Kourou, French Guiana.
There is O-F's calendar event created for this launch, for which you can request a reminder, that will be sent via e-mail on set time before the launch.
Launch opportunity:
{colsp=6}
#1: SCRUBBED
Window
|
{colsp=6}
#2:
Window
|
{colsp=6}
|
Live Coverage Of The Launch:
Launch Vehicle:
{colsp=2}Characteristics
|
{colsp=2}
Height| up to 52 m
Diameter| up to 5.4 m
Liftoff mass| 780 tonnes
Payload mass| 9.6 tonnes
{colsp=2}The launcher’s attitude and trajectory are totally controlled by the two onboard computers, located in the Ariane 5 vehicle equipment bay (VEB). 7.05 seconds after ignition of the main stage cryogenic engine at T-0, the two solid-propellant boosters are ignited, enabling liftoff. The launcher first climbs vertically for 6 seconds, then rotates towards the East. It maintains an attitude that ensures the axis of the launcher remains parallel to its velocity vector, in order to minimize aerodynamic loads throughout the entire atmospheric phase, until the solid boosters are jettisoned. Once this first part of the flight is completed, the onboard computers optimize the trajectory in real time, minimizing propellant consumption to bring the launcher first to the intermediate orbit targeted at the end of the main stage propulsion phase, and then the final orbit at the end of the flight of the cryogenic upper stage. The main stage falls back off the coast of Africa in the Atlantic Ocean (in the Gulf of Guinea). On orbital injection, the launcher will have attained a velocity of approximately 9359 meters/second, and will be at an altitude of about 647 kilometers. The fairing protecting the Hispasat 1E and KOREASAT 6 spacecraft is jettisoned shortly after the boosters are jettisoned at about T+189 seconds.
Payload:
Launch Preparations:
Countdown & Launch Sequence:
–07:30:00 |{colsp=3}Check of electrical systems
–04:50:00 |{colsp=3}Start of filling of main cryogenic stage with liquid oxygen and hydrogen
–03:20:00 |{colsp=3}Chilldown of Vulcain main stage engine
–01:10:00 |{colsp=3}Check of connections between launcher and telemetry, tracking and command systems
–00:07:00 |{colsp=3}“All systems go” report, allowing start of synchronized sequence
–00:04:00 |{colsp=3}Tanks pressurized for flight
–00:01:00 |{colsp=3}Switch to onboard power mode
–00:00:05.5 |{colsp=3}Command issued for opening of cryogenic arms
–00:00:04 |{colsp=3}Onboard systems take over
–00:00:03 |{colsp=3}Unlocking of guidance systems to flight mode
–00:00:00 |H 0 - Ignition of the cryogenic main stage engine (EPC)|
Injection orbit:
Links:
This will be the 55th Ariane 5 launch. The launcher will be carrying a total payload of 9259 kg, including 8170 kg for the Hispasat 1E and Koreasat 6 satellites, which will be released into their targeted orbits.
The launch will be from Ariane Launch Complex No. 3 (ELA 3) in Kourou, French Guiana.
There is O-F's calendar event created for this launch, for which you can request a reminder, that will be sent via e-mail on set time before the launch.
Launch opportunity:
Universal / UTC
|
Paris / CET
|
Kourou / GFT
|
Washington / EST
|
Seoul / KST
start:
|
21:26
|
22:26
|
18:26
|
4:26 p.m.
|
06:26
end:
|
22:15
|
23:15
|
19:15
|
5:15 p.m.
|
07:15
on:
|
Dec. 28, 2010
|
Dec. 28, 2010
|
Dec. 28, 2010
|
Dec. 28, 2010
|
Dec. 29, 2010
Universal / UTC
|
Paris / CET
|
Kourou / GFT
|
Washington / EST
|
Seoul / KST
start:
|
21:27
|
22:27
|
18:27
|
4:27 p.m.
|
06:27
end:
|
22:16
|
23:16
|
19:16
|
5:16 p.m.
|
07:16
on:
|
Dec. 29, 2010
|
Dec. 29, 2010
|
Dec. 29, 2010
|
Dec. 29, 2010
|
Dec. 30, 2010
{colsp=6}
[highlight]L[eventtimer]2010-12-29 21:27;%c%%ddd%/%hh%:%mm%:%ss%[/eventtimer][/highlight]
Live Coverage Of The Launch:
You can watch the broadcast of the launch live on Arianespace's Videocorner.
The live coverage for the second launch attempt on Videocorner will start 20 minutes before the window opening time, at about 21:05 UTC / 4:05 p.m. EST - i.e.[eventtimer]2010-12-29 21:5? in| ;%c% %h%:%mm%[/eventtimer] hours[eventtimer]2010-12-29 21:5?.| ago.;%c%[/eventtimer]
You can also watch the launch on TV via satellite (where available), from: HOT BIRD™ (Transponder 155), 13° East, Frequency: 11604 MHz, Horizontal Polarisation, Symbol rate: 27.500 Msps, FEC 5/6, DVB-S, QPSK, MPEG-2, No encryption / Free to air.
The live coverage for the second launch attempt on Videocorner will start 20 minutes before the window opening time, at about 21:05 UTC / 4:05 p.m. EST - i.e.[eventtimer]2010-12-29 21:5? in| ;%c% %h%:%mm%[/eventtimer] hours[eventtimer]2010-12-29 21:5?.| ago.;%c%[/eventtimer]
You can also watch the launch on TV via satellite (where available), from: HOT BIRD™ (Transponder 155), 13° East, Frequency: 11604 MHz, Horizontal Polarisation, Symbol rate: 27.500 Msps, FEC 5/6, DVB-S, QPSK, MPEG-2, No encryption / Free to air.
Launch Vehicle:
Ariane 5 ECA
Height| up to 52 m
Diameter| up to 5.4 m
Liftoff mass| 780 tonnes
Payload mass| 9.6 tonnes
The latest version of the Ariane 5 launcher, Ariane 5 ECA, is designed to place payloads weighing up to 9.6 tonnes into GTO. With its increased capacity, Ariane 5 ECA can handle dual launches of very large satellites.
Ariane 5 ECA: new elements
Ariane 5 ECA is an improved Ariane 5 Generic launcher. Although it has the same general architecture, a number of major changes were made to the basic structure of the Ariane 5 Generic version to increase thrust and enable it to carry heavier payloads into orbit.
Solid boosters (EAP)The EAP boosters’ upper segment of the Ariane 5 ECA (also known as segment S1) carries 10% (2.5 tonnes) more propellant. This extra propellant gives the Ariane 5 ECA an additional 50 tonnes of thrust in the first 20 seconds following liftoff. This means that together the twin boosters deliver a thrust of 1300 tonnes at liftoff, nearly 10 times the level delivered by the new engine of the central stage.
Main stage (EPC and Vulcain 2 engine)An improved version of the Vulcain engine was developed and used on the Ariane 5 ECA version. The Vulcain cryogenic engine was modified to increase its thrust by 20%, up to 137 tonnes. This new Vulcain 2 operates under slightly higher pressure with a mixture ratio that has 20% more liquid oxygen than the Vulcain 1. Because of this change in the mixture, a new oxygen turbopump was developed. In addition, the Vulcain 2 turbopump exhausts are reinjected into the main system, thus improving engine performance at high altitude. The Vulcain 2 engine is a key contributor to the additional lift capability of the new Ariane 5 ECA version into GTO.
To hold the extra liquid oxygen needed for the EPC core stage, the capacity of the liquid oxygen tank has been increased by 16 tonnes. This was achieved by relocating the common tank bulkhead between the liquid oxygen tank and the liquid hydrogen tank of the Ariane 5 Generic EPC stage and reinforcing the structure elements.
{colsp=2}The launcher’s attitude and trajectory are totally controlled by the two onboard computers, located in the Ariane 5 vehicle equipment bay (VEB). 7.05 seconds after ignition of the main stage cryogenic engine at T-0, the two solid-propellant boosters are ignited, enabling liftoff. The launcher first climbs vertically for 6 seconds, then rotates towards the East. It maintains an attitude that ensures the axis of the launcher remains parallel to its velocity vector, in order to minimize aerodynamic loads throughout the entire atmospheric phase, until the solid boosters are jettisoned. Once this first part of the flight is completed, the onboard computers optimize the trajectory in real time, minimizing propellant consumption to bring the launcher first to the intermediate orbit targeted at the end of the main stage propulsion phase, and then the final orbit at the end of the flight of the cryogenic upper stage. The main stage falls back off the coast of Africa in the Atlantic Ocean (in the Gulf of Guinea). On orbital injection, the launcher will have attained a velocity of approximately 9359 meters/second, and will be at an altitude of about 647 kilometers. The fairing protecting the Hispasat 1E and KOREASAT 6 spacecraft is jettisoned shortly after the boosters are jettisoned at about T+189 seconds.
Payload:
Hispasat 1E:
Koreasat 6:
Characteristics|
|
Hispasat 1E will be the sixth Spanish satellite launched by Arianespace. In 1992 and 1993 the European launcher orbited Hispasat 1A and 1B. Then in 1995 and 1996 Hispasat and its subsidiary Hisdesat called on Arianespace to launch the XTAR-Eur and Spainsat satellites. Most recently, Arianespace launched the Amazonas-2 satellite for Hispasat in October 2009.
Hispasat 1E was built by Space Systems/Loral using an LS 1300 platform, and will weigh 5320 kg at launch. Carrying 53 active Ku-band transponders and additional Ka-band capacity, this powerful satellite will give Hispasat additional capacity, plus an expanded range of video and data transmission services, with European and pan-American coverage. The satellite’s design life is 15 years, and it will be positioned in geostationary orbit at 30 degrees West.
Hispasat 1E was built by Space Systems/Loral using an LS 1300 platform, and will weigh 5320 kg at launch. Carrying 53 active Ku-band transponders and additional Ka-band capacity, this powerful satellite will give Hispasat additional capacity, plus an expanded range of video and data transmission services, with European and pan-American coverage. The satellite’s design life is 15 years, and it will be positioned in geostationary orbit at 30 degrees West.
Koreasat 6:
Koreasat 6 is the second satellite that Arianespace will launch for the South Korean operator, after Koreasat 3 in 1999. In June 2010, Arianespace launched the COMS-1 multimission satellite for the Korea Aerospace Research Institute (KARI).
Koreasat 6 was built by Thales Alenia Space using a Star-2 platform from Orbital Sciences Corporation of the United States. Weighing nearly 2850 kg at launch, it is equipped with 30 active Ku-band transponders. Koreasat 6 will provide broadcasting and communications services across all of South Korea from its orbital position at 116 degrees East. Its design life exceeds 15 years.
Koreasat 6 was built by Thales Alenia Space using a Star-2 platform from Orbital Sciences Corporation of the United States. Weighing nearly 2850 kg at launch, it is equipped with 30 active Ku-band transponders. Koreasat 6 will provide broadcasting and communications services across all of South Korea from its orbital position at 116 degrees East. Its design life exceeds 15 years.
Hispasat 1E
|
Koreasat 6
Customer:
|
- HISPASAT
- KOREA TELECOM
Prime contractor:
|
- SPACE SYSTEMS LORAL
- ORBITAL SCIENCES CORPORATION and THALES ALENIA SPACE
Mission:
|
- Telecommunications
- Telecommunications
Mass:
|
- Total mass at lift-off 5320 kg
- Dry mass 2175 kg
- Total mass at lift-off 2850 kg
- Dry mass 1150 kg
Stabilization:
|
- 3 axis stabilized
- 3 axis stabilized
Dimensions:
|
- 5.4 x 2.8 x 2.2 m
- Span in orbit: 26.7 m
- 4.3 x 2.3 x 3.2 m
- Span in orbit: 18 m
Platform:
|
- LS 1300
- STAR-2
Payload:
|
- 53 Ku-band transponders, additional Ka-band capacity
- 30 Ku-band transponders
Propulsion:
| |
- IHI BT-4
On-board power:
|
- 12.4 kW (end of life)
- 5307 W (end of life)
Life time:
|
- 18 years
- 15 years minimum
Orbital position:
|
- 30° West
- 116° West
Coverage area:
|
- Europe & Americas
- South Korea and neighbouring countries
Images (clickable)
|
Launch Preparations:
Timeline:
Arianespace mission updates:
In pictures:
Date
|
Event
Nov. 10, 2010
|
- Campaign start review
- EPC Erection
Nov. 11, 2010
|
- EAP transfer and positionning
Nov. 12, 2010
|
- Integration EPC/EAP
Nov. 15, 2010
|
- ESC-A and VEB Erection
Nov. 20, 2010
|
- Arrival in Kourou of Hispasat 1E and beginning of preparation campaign in building S1 B
Nov. 26, 2010
|
- Arrival in Kourou of KOREASAT 6 and beginning of preparation campaign in building S1 B
Dec. 3, 2010
|
- Roll-out from BIL to BAF
Dec. 11-15, 2010
|
- Hispasat 1E filling operations
Dec. 15-18, 2010
|
- KOREASAT 6 filling operations
Dec. 16, 2010
|
- Hispasat 1E integration on adaptor (ACU)
Dec. 17, 2010
|
- Hispasat 1E transfer to Final Assembly Building (BAF)
Dec. 18, 2010
|
- Hispasat 1E integration on Sylda
Dec. 19, 2010
|
- Fairing integration on Sylda and KOREASAT 6 integration on adaptor
Dec. 20, 2010
|
- KOREASAT 6 transfer to Final Assembly Building (BAF)
Dec. 21, 2010
|
- KOREASAT 6 integration on launcher
Dec. 22, 2010
|
- ESC-A final preparations and payloads control
- Upper composite integration with Hispasat 1E on launcher
Dec. 23, 2010
|
- Launch rehearsal
Dec. 24, 2010
|
- Arming of launch vehicle
Dec. 26, 2010
|
- Arming of launch vehicle
- Launch readiness review (RAL) and final preparation of launcher
Dec. 27, 2010
|
- Roll-out from BAF to Launch Area (ZL)
- Launch vehicle connections and filling of the EPC liquid Helium sphere
Dec. 28, 2010
|
- Launch countdown including EPC and ESC-A filling with liquid oxygen and liquid hydrogen
Arianespace mission updates:
- 2010-11-11: The 199th Ariane is delivered to the Spaceport for Arianespace’s launch with Hispasat 1E and KOREASAT 6
- 2010-11-26: HISPASAT 1E arrives at the Spaceport for Arianespace’s Ariane 5 mission in December
- 2010-12-14: Ariane 5’s sixth launch of 2010 is set for December 28
- 2010-12-20: KOREASAT 6 is prepared for its integration on Ariane 5
- 2010-12-26: The year-ending Ariane 5 flight with HISPASAT 1E and KOREASAT 6 is approved for liftoff
- 2010-12-27: Ariane 5 is moved to the launch zone for its year-ending flight
In pictures:
- The MN Toucan approaches the port of Pariacabo in French Guiana to complete its transatlantic sea voyage with the launcher elements for Arianespace’s year-ending Ariane 5 mission.
- The protective container with Ariane 5’s cryogenic core stage enters the main base area of the Spaceport.
- The Ariane 5 for flight with Hispasat 1E and KOREASAT 6 in the Launcher Integration Building.
- The shipping container with HISPASAT 1E is unloaded from an Antonov An-124 cargo aircraft at Rochambeau International Airport near the French Guiana capital city of Cayenne.
- KOREASAT 6 is installed as the lower passenger in the Ariane 5’s payload “stack” during integration activity earlier this month at the Spaceport’s Final Assembly Building in French Guiana.
- Arianespace’s sixth Ariane 5 of 2010 on its way to the ELA-3 launch zone during transfer from the Final Assembly Building.
Countdown & Launch Sequence:
H0 [HH:MM:SS]
|{colsp=3}
Event
–11:30:00
|{colsp=3}Start of final countdown–07:30:00 |{colsp=3}Check of electrical systems
–04:50:00 |{colsp=3}Start of filling of main cryogenic stage with liquid oxygen and hydrogen
–03:20:00 |{colsp=3}Chilldown of Vulcain main stage engine
–01:10:00 |{colsp=3}Check of connections between launcher and telemetry, tracking and command systems
–00:07:00 |{colsp=3}“All systems go” report, allowing start of synchronized sequence
–00:04:00 |{colsp=3}Tanks pressurized for flight
–00:01:00 |{colsp=3}Switch to onboard power mode
–00:00:05.5 |{colsp=3}Command issued for opening of cryogenic arms
–00:00:04 |{colsp=3}Onboard systems take over
–00:00:03 |{colsp=3}Unlocking of guidance systems to flight mode
–00:00:00 |H 0 - Ignition of the cryogenic main stage engine (EPC)|
ALT [km]
|
V.rel. [m/s]
+00:00:07.05
|Ignition of solid boosters|
0
|
0
+00:00:07.3
|Liftoff|
0
|
0
+00:00:12.6
|End of vertical climb and beginning of pitch rotation (10 seconds duration)|
0.091
|
37.4
+00:00:17.1
|Beginning of roll manoeuvre|
0.349
|
75.2
+00:02:20
|Jettisoning of solid boosters|
67.2
|
1990
+00:03:09
|Jettisoning of fairing|
106.4
|
2197
+00:07:44
|Acquisition by Natal tracking station|
171
|
5210
+00:08:55
|Shut-down of main cryogenic stage|
181.2
|
6879
+00:09:01
|Separation of main cryogenic stage|
181.1
|
6906
+00:09:05
|Ignition of upper cryogenic stage (ESC-A)|
181.1
|
6908
+00:13:34
|Acquisition by Ascension tracking station|
162
|
7580
+00:18:26
|Acquisition by Libreville tracking station|
179
|
8190
+00:23:09
|Acquisition by Malindi tracking station|
443
|
9002
+00:25:02
|Injection|
647.2
|
9359
+00:27:27
|Separation of Hispasat 1E satellite|
1012
|
9056
+00:29:46
|Separation of Sylda 5|
1436
|
8729
+00:34:12
|Separation of KOREASAT 6 satellite|
2404
|
8064
+00:47:34
|End of Arianespace Flight mission|
5776
|
6339
Injection orbit:
Perigee altitude:
| 250 kmApogee altitude:
| 35786 km at injectionInclination:
| 3°Links:
- Arianespace:
- Videocorner - Live launch coverage
- Press releases:
- Launch Kit:
- � English (PDF - 681 KB)
- � French (PDF - 676 KB)
- � Launch poster / cover art (PDF - 2.63 MB)
- Orbital:
- Space Travel:
- Gunter's Space Page:
- Space Systems Loral: Hispasat 1E page
Last edited:
