Author Topic: LIVE: Proton-M launch with Intelsat 23 satellite - October 14, 2012 (Read 45188 times)

Satori · « **Reply #40 on:** 10/14/2012 07:34 am »

Mobile Service Tower almost complete. We have a nice rocket on the pad.

Satori · « **Reply #41 on:** 10/14/2012 07:37 am »

T-1h for launch...

Satori · « **Reply #42 on:** 10/14/2012 07:39 am »

According to the most recent Mission Planner’s Guide v7 (available on L2)), next major event will be at T-45 m with the LV final countdown activities commence. Propulsion system GO signal is generated by the LV GN&C GLSTE. Countdown display system remote units are synchronized to the master CD clock.

Satori · « **Reply #43 on:** 10/14/2012 07:41 am »

We wont see much of this launch...

Satori · « **Reply #44 on:** 10/14/2012 07:45 am »

This will be a long 9 hour and 30 minutes mission...

Satori · « **Reply #45 on:** 10/14/2012 07:47 am »

From Khrunichev...

"Immediately after the separation of the third stage booster, the Breeze-M stability engines ignite, damping the angular velocities of the third stage separation and then providing orbital unit orientation and stability during coast flight along a suborbital trajectory to await the first burn.

The upper stage follows a four-burn injection profile.

The first main engine (ME) burn occurs 94 seconds after the Breeze-M separation from the launcher, forming a support orbit.

The second ME ignition is performed in the ascending node of the support orbit, resulting in an intermediate orbit. The third ME burn occurs at the intermediate orbit perigee in the ascending node. The additional propellant tank is jettisoned after the third ME cutoff, and the OU reaches a transfer orbit with an apogee close to that of the target orbit. The fourth ME burn is performed in the descending node of the transfer orbit apogee, placing the OU into the target orbit.

Prior to each ME burn and APT separation, impulse correction engines fire to settle propellants in the tank.

During OU coast flight, i.e. the main engine is off, the Breeze-M control system turns the OU to provide proper orientation for the spacecraft, generate thrust impulses, support radio control, and separate the spacecraft.

Once in the target orbit, the orbital unit is stabilized for Intelsat-23 separation, following which the satellite is released.

Spacecraft separation occurs 14 minutes and 15 seconds after the fourth ME cutoff. Once the orbit parameters are downlinked, the upper stage is withdrawn to drift in a safe mode, dropping pressure in all the containers."

Satori · « **Reply #46 on:** 10/14/2012 07:48 am »

Satori · « **Reply #47 on:** 10/14/2012 07:50 am »

Satori · « **Reply #48 on:** 10/14/2012 07:51 am »

T-45m... "LV final countdown activities commence. Propulsion system GO signal is generated by the LV GN&C GLSTE. Countdown display system remote units are synchronized to the master CD clock."

Satori · « **Reply #49 on:** 10/14/2012 07:54 am »

Let's hope everything goes well with this launch. Remember that the previous launch on August 7th, the satellites were placed in wrong orbits.

This was due to a the failure of a component of the pressurization system that was not manufactured to specifications. This caused a shutdown of the Breeze M Main engine by the Breeze M flight control system 7 seconds into the planned 18 minute and 5 second 3rd burn.

input~2 · « **Reply #50 on:** 10/14/2012 07:55 am »

NOTAMs for Proton 1st stage and 2nd stage/fairing

Quote

K0595/12 - ATS ROUTE SEGMENTS CLSD: 1.A113 TIROK-GISIR FROM 25 KM TO 65 KM 2.B822 LUGER-BETIK FROM 35 KM TO 75 KM SFC/UNL. DAILY 0830/0920, 14 OCT 08:30 2012 UNTIL 16 OCT 09:20 2012. CREATED: 12 OCT 05:45 2012

Quote

P3992/12 - ATS RTE SEGMENTS CLOSED: B928 TELRU - NIGOR P983 TELRU - NIGOR. SFC - UNL, DAILY 0830-0920, 14 OCT 08:30 2012 UNTIL 16 OCT 09:20 2012. CREATED: 10 OCT 08:20 2012

and NOTAM for 3rd stage

Quote

A4279/12 - QWMLW THE RUSSIAN FEDERAL SPACE AGENCY HAS PLANNED A MISSILE LAUNCH. DEBRIS FROM THIS LAUNCH WILL FALL WITHIN AN AREA BOUNDED BY 2515N/16000E 2600N/16045E 2330N/16335E 2245N/16248E BACK TO THE POINT OF ORIGIN. IN THE INTEREST OF SAFETY ALL NON-PARTICIPATING AIR TRAFFIC ARE ADVISED TO AVOID THE NOTAMED AREA. IFR AIRCRAFT UNDER ATC JURISDICTION SHOULD ANTICIPATE CLEARANCE AROUND THE NOTAMED AREA. SFC - UNL, 0830-1000Z DLY, 14 OCT 08:30 2012 UNTIL 17 OCT 10:00 2012. CREATED: 05 OCT 16:30 2012

Satori · « **Reply #51 on:** 10/14/2012 07:56 am »

ILS webcast will star at 0815UTC. You can watch it at http://intelsat23.imgondemand.com/

input~2 · « **Reply #52 on:** 10/14/2012 07:58 am »

Quote from: Satori on 10/14/2012 07:54 am

Let's hope everything goes well with this launch.

In particular with the planned unusual long burns of Briz-M: Burn#3 & 4 should last more than 18 minutes each

Satori · « **Reply #53 on:** 10/14/2012 07:58 am »

Next major event will be at T-35m with LV GN&C GLSTE arming the launch abort systems. Readiness green indicator light illuminates on the launch abort unit front panel. Two redundant displays on the launch abort
unit are synchronized to the CD clock and start countdown. SC launch unit abort switch is active.

Satori · « **Reply #54 on:** 10/14/2012 07:59 am »

Quote from: input~2 on 10/14/2012 07:58 am

Quote from: Satori on 10/14/2012 07:54 am
Let's hope everything goes well with this launch.
In particular with the planned unusual long burns of Briz-M: Burn#3 & 4 should last more than 18 minutes each

Yes, you are right... Interesting flight profile indeed!

Satori · « **Reply #55 on:** 10/14/2012 08:01 am »

T-35 m... LV GN&C GLSTE is arming the launch abort systems. Readiness green indicator light illuminates on the launch abort unit front panel. Two redundant displays on the launch abort unit are synchronized to the CD clock and start countdown. SC launch unit abort switch is active.

Satori · « **Reply #56 on:** 10/14/2012 08:02 am »

Ah! Better look at the Proton-M now...

Satori · « **Reply #57 on:** 10/14/2012 08:03 am »

"The Intelsat-23 mission will be the eighth Proton launch of 2012 and the 380th Proton flight overall.

This will be the sixth commercial mission of the year for ILS and the 75th ILS Proton mission since the Proton April 1996 first commercial flight.

This will also be the fifth Intelsat satellite launched with Proton. In addition, the Intelsat-23 will be the fifth Orbital satellite launched on Proton."

Satori · « **Reply #58 on:** 10/14/2012 08:06 am »

"Intelsat-23 is a new hybrid communications satellite built by Orbital Sciences Corporation for Intelsat, a premier global provider of video and data service via satellite.

Designed for 15 years of service, Intelsat-23 will be located in geosta-tionary orbit at 307 degrees East longitude to replace Intelsat's IS-707 satellite launched in March 1996. The spacecraft carries a C-band and a Ku-band payload and has a launch mass of 2,680 kg. The IS-23 satellite hosts 15 active Ku-band and 24 active C-band transponders to provide communications services for the Americas, Caribbean, Western Europe, Africa and selected islands of the Pacific and Atlantic oceans.

The satellite is based on Orbital's STAR-2 spacecraft platform and will generate approximately 4.8 kW of payload power.

Intelsat-23 is one of ten Orbital STAR geostationary communications satellites ordered by Intelsat. Others include Galaxy-14, Galaxy-15, Galaxy-12, Intelsat-11, Horizons-2, Intelsat-15, Intelsat-16, Intelsat New Dawn, and Intelsat-18. The flight-proven STAR design is able to accommodate most types of commercial communications payloads."

Satori · « **Reply #59 on:** 10/14/2012 08:07 am »

T-30m... Next major milestone on the countdown will take place at T-10 m when the SC Customer gives verbal readiness on countdown network.