A-ONE: Cygnus Mass Simulator, Dove 1, PhoneSat х3 - Antares-110 - MARS LP-0A - 21.04.2013 21:00 UTC

[Salo]

SUNDAY, APRIL 21, 2013
2007 GMT (4:07 p.m. EDT)
Officials expect to clear the boat in about four minutes.

SUNDAY, APRIL 21, 2013
2009 GMT (4:09 p.m. EDT)
The boat has been cleared from the danger zone, and the range reports they are now green.


SUNDAY, APRIL 21, 2013
2010 GMT (4:10 p.m. EDT)
the payload for this Antares test flight is a 8,377-pound mass simulator representing the Orbital Sciences Cygnus cargo spacecraft. It measures 199.25 inches high and has a diameter of 114 inches.

The mass simulator carries:

    24 thermocouples
    22 accelerometers
    12 digital thermometers
    12 strain gauges
    2 microphones

[Salo]

SUNDAY, APRIL 21, 2013
2013 GMT (4:13 p.m. EDT)
The transporter-erector-launcher system, essentially a mobile launch tower next to the rocket, is configured to pull back from the launch vehicle, the launch team reports. Gripper arms on the tower have opened from around the rocket.

The tower will retract a few degrees away from the rocket in the final seconds of the countdown.

[Salo]

#Antares Transporter Erector Launcher (TEL) Preload removal complete. TEL Gripper Arms are open. TEL pull back is in work.

[Salo]

SUNDAY, APRIL 21, 2013
2015 GMT (4:15 p.m. EDT)
The launch team is loading the flight trajectory file into the Antares flight computer.

[Salo]

SUNDAY, APRIL 21, 2013
2018 GMT (4:18 p.m. EDT)
The launch team has verified good telemetry links between the rocket and ground teams.

[Salo]

SUNDAY, APRIL 21, 2013
2020 GMT (4:20 p.m. EDT)
T-minus 40 minutes and counting. The launch team will polled in a few minutes to begin low-flow chilldown of the first stage's AJ26 engines. The chilldown procedure ensures the propellant lines leading to the engines are conditioned for the shock of super-cold liquid oxygen stored at minus 298 degrees Fahrenheit.

[Salo]

SUNDAY, APRIL 21, 2013
2025 GMT (4:25 p.m. EDT)
T-minus 35 minutes and counting. The team is "go" for low-flow chilldown of the main engines beginning in about four minutes. This milestone will limit today's launch window to 10 minutes.

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=31704.msg1041672#msg1041672

antonioe пишет Today at 08:28 PM:

Debris drift green

[Salo]

SUNDAY, APRIL 21, 2013
2028 GMT (4:28 p.m. EDT)
 T-minus 32 minutes and counting. Loading of kerosene into the rocket is going well. The first stage's helium pressurant bottles are now submerged.

[Salo]

Пошла трансляция на NASA TV:
http://www.nasa.gov/multimedia/nasatv/ustream_media.html

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=31704.msg1041675#msg1041675

antonioe пишет Today at 08:31 PM:

 Engines temperatures starting to go down ... both of them ...  

[Salo]

#Antares T-25 Engines are in low flow chill down mode. RP-1 loading is complete. Chilled helium loading is nearly complete.

[Salo]

SATURDAY, APRIL 21, 2013
2030 GMT (4:30 p.m. EDT)
Chilldown is underway and all systems are reported to be in good shape for an on-time launch at 5 p.m. EDT.

SATURDAY, APRIL 21, 2013
2033 GMT (4:33 p.m. EDT)
The latest check of upper level winds shows conditions aloft are within all launch constraints.

[Salo]

#Antares T-20 min: Vehicle is green. Range is green. Polling in progress.

[Salo]

SUNDAY, APRIL 20, 2013
2040 GMT (4:40 p.m. EDT)
T-minus 20 minutes and counting. Loading of more than 20,000 gallons of RP-1 fuel into the first stage is complete. Engineers are now doing final checks of the rocket's flight termination system and configuring that device for launch.

[Salo]

SUNDAY, APRIL 21, 2013
2044 GMT (4:44 p.m. EDT)
T-minus 16 minutes and counting. Another poll is coming up at T-minus 12 minutes to approve the start of a medium-flow chilldown, another step to condition the main engines for ignition.

[Salo]

#Antares clocks picked up the count. T-15 and counting.

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=31704.msg1041711#msg1041711

antonioe пишет Today at 08:46 PM:

 L-1:30 (last) balloon debris drift assessment is green

[Salo]

#Antares to begin medium chilldown flow at T-12 min.

[Salo]

#Antares launch director polling team for "go for launch".