Das Artemis - Programm der NASA. Die Rückkehr zum Mond.

Neues von der Artemis 1 - Mission:

Fri, 28 Oct 2022 20:24:55 +0000

Artemis

Teams are on track to roll the Space Launch System rocket and Orion spacecraft from the Vehicle Assembly Building (VAB) to Launch Pad 39B no earlier than Friday, Nov. 4 with first motion targeted for 12:01 a.m. EDT.

Minor repairs identified through detailed inspections are mostly completed. Preparations are underway to ready the mobile launcher and VAB for rollout by configuring the mobile launcher arms and umbilicals and continuing to retract the access platforms surrounding SLS and Orion as work is completed.

Testing of the reaction control system on the twin solid rocket booters, as well as the installation of the flight batteries, is complete and those components are ready for flight. Engineers also have replaced the batteries on the interim cryogenic propulsion stage (ICPS), which was powered up for a series of tests to ensure the stage is functioning properly. Teams successfully completed final confidence checks for the ICPS, launch vehicle stage adapter and the core stage forward skirt.

Teams are continuing to work in the intertank area of the core stage and upper section of the boosters to replace batteries. These areas will remain open to support remaining battery and flight termination system activities. Flight termination system testing will start next week on the intertank and booster and once complete, those elements will be ready for launch. Charging of the secondary payloads in the Orion stage adapter is complete.

Teams recharged, replaced and reinstalled several of the radiation instruments and the crew seat accelerometer inside Orion ahead of the crew module closure for roll. Technicians will refresh the specimens for the space biology payload at the launch pad. The crew module and launch abort system hatches are closed for the roll to the pad, and engineers will perform final closeouts at the pad prior to launch.

Teams will plan to move the crawler transporter into position outside of the VAB ahead of rolling into the facility early next week. The agency continues to target a launch date no earlier than Nov. 14 at 12:07 a.m. EDT.

Siehe auch die Originalnachricht:

Teams On Track for Artemis I Rollout to Launch Pad – Artemis

Neues von der Artemis 1 - Mission:

Mon, 31 Oct 2022 19:31:32 +0000

Artemis

The CAPSTONE spacecraft successfully completed a trajectory correction maneuver on Thursday, Oct. 27, teeing up the spacecraft’s arrival to lunar orbit on Nov. 13.

CAPSTONE is no longer in safe mode following an issue in early September that caused the spacecraft to spin. The team identified the most likely cause as a valve-related issue in one of the spacecraft’s eight thrusters. The mission team will design future maneuvers to work around the affected valve, including the two remaining trajectory correction maneuvers scheduled before CAPSTONE’s arrival to orbit at the Moon.

CAPSTONE – short for Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment – is owned by Advanced Space on behalf of NASA. The spacecraft was designed and built by Terran Orbital. Operations are performed jointly by teams at Advanced Space and Terran Orbital.

Siehe auch die Originalnachricht:

CAPSTONE Completes Successful Maneuver, Teeing Up Moon Orbit – Artemis

Neues von der Artemis 1 - Mission:

Fri, 04 Nov 2022 03:22:01 +0000

Artemis

The Space Launch System rocket and Orion spacecraft for the Artemis I flight test are rolling to launch pad 39B at NASA’s Kennedy Space Center in Florida ahead of launch. At about 11:17 p.m. EDT the crawler-transporter began the approximately 4-mile journey from the Vehicle Assembly Building (VAB) to the launch pad.

Once outside the VAB high-bay doors, the Moon rocket will make a planned pause allowing the team to reposition the crew access arm on the mobile launcher before continuing to the launch pad. The journey is expected to take between eight to 12 hours. NASA will provide an update once the rocket has arrived at the pad. A live stream view of the rocket and spacecraft departing VAB and arriving at the launch pad is available on the Kennedy Newsroom YouTube Channel.

Launch is currently targeted for Nov. 14 at the opening of a 69-minute launch window starting at 12:07 a.m. EST.

Siehe auch die Originalnachricht:

NASA’s Mega Moon Rocket Begins Roll to Launch Pad  – Artemis

Neues von der Artemis 1 - Mission:

Fri, 04 Nov 2022 12:57:59 +0000

Artemis

NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard is seen atop the mobile launcher as it arrives at Launch Pad 39B, Friday, Nov. 4, 2022, at NASA’s Kennedy Space Center in Florida. NASA’s Artemis I mission is the first integrated test of the agency’s deep space exploration systems: the Orion spacecraft, SLS rocket, and supporting ground systems. Launch of the uncrewed flight test is targeted for Nov. 14 at 12:07 a.m. EST. Photo Credit: (NASA/Joel Kowsky)

Around 8:30 a.m. EDT on Nov. 4, the Space Launch System rocket and Orion spacecraft for the Artemis I mission arrived at launch pad 39B at NASA’s Kennedy Space Center in Florida after a nearly nine-hour journey from the Vehicle Assembly Building. Teams will continue working to configure SLS and Orion for the upcoming Nov. 14. launch attempt.

Siehe auch die Originalnachricht:

Artemis I Moon Rocket Arrives at Launch Pad Ahead of Historic Mission – Artemis

Hallo Sternfreunde.

Na, gehns mit dem Hund wieder mal Gassi🐕 😁. Hoffentlich lassen’s ihn diesmal von der Leine 😅.

Gutes Seeing

Gruß

Günther

Neues von der Artemis 1 - Mission:

Mon, 07 Nov 2022 22:40:27 +0000

Artemis

NASA is working with U.S. Space Force and the National Hurricane Center to monitor Subtropical Storm Nicole. NASA’s Kennedy Space Center in Florida is currently in a HURCON (Hurricane Condition) IV status, which includes implementing checklists and preparations for the storm as the agency continues to prioritize its employees in the Kennedy area. Based on current forecast data, managers have determined the Space Launch System rocket and Orion will remain at Launch Pad 39B. Teams at Kennedy will continue to monitor the weather, make sure all personnel are safe, and will evaluate the status of the Monday, Nov. 14, launch attempt for the Artemis I mission as we proceed and receive updated predictions about the weather.

Siehe auch die Originalnachricht:

NASA monitoring Subtropical Storm Nicole, Space Launch System rocket and Orion to remain at Launch Pad 39B – Artemis

Neues von der Artemis 1 - Mission:

Tue, 08 Nov 2022 22:47:23 +0000

Artemis

NASA is continuing to monitor Tropical Storm Nicole and has decided to re-target a launch for the Artemis I mission for Wednesday, Nov. 16, pending safe conditions for employees to return to work, as well as inspections after the storm has passed. Adjusting the target launch date will allow the workforce to tend to the needs of their families and homes, and provide sufficient logistical time to get back into launch status following the storm.

Kennedy currently is in a HURCON (Hurricane Condition) III status, which includes securing facilities, property and equipment at the center, as well as briefing and deploying the “ride-out” team. As part of NASA’s hurricane preparedness protocol, a “ride-out” team includes a set of personnel who will remain in a safe location at Kennedy throughout the storm to monitor centerwide conditions, including the flight hardware for the Artemis I mission. Kennedy will release non-essential personnel at the HURCON II status as the agency continues to prioritize its employees in the Kennedy area.

Based on expected weather conditions and options to roll back ahead of the storm, the agency determined Sunday evening the safest option for the launch hardware was to keep the Space Launch System (SLS) rocket and Orion spacecraft secured at the pad.

The SLS rocket is designed to withstand 85 mph (74.4 knot) winds at the 60-foot level with structural margin. Current forecasts predict the greatest risks at the pad are high winds that are not expected to exceed the SLS design. The rocket is designed to withstand heavy rains at the launch pad and the spacecraft hatches have been secured to prevent water intrusion.

In preparation for the storm, teams have powered down the Orion spacecraft, SLS core stage, interim cryogenic propulsion stage, and boosters. Engineers have also installed a hard cover over the launch abort system window, retracted and secured the crew access arm on the mobile launcher and configured the settings for the environmental control system on the spacecraft and rocket elements. Teams also are securing nearby hardware and performing walkdowns for potential debris in the area.

Teams are poised to resume work as soon as weather and Kennedy center status allows. Once back on-site, technicians will perform walkdowns and inspections at the pad to assess the status of the rocket and spacecraft as soon as practicable.

A launch during a two-hour window that opens at 1:04 a.m. EST on Nov. 16 would result in a splashdown on Friday, Dec. 11. If needed, NASA has a back-up launch opportunity on Saturday, Nov. 19, and will coordinate with the U.S. Space Force for additional launch opportunities.

The agency continues to rely on the most up to date information from the National Oceanic and Atmospheric Administration, U.S. Space Force, and the National Hurricane Center throughout its evaluations and continues to closely monitor conditions for the Kennedy area.

Siehe auch die Originalnachricht:

NASA Prepares Rocket, Spacecraft Ahead of Tropical Storm Nicole, Re-targets Launch – Artemis

Letzte Nacht so um 03:00 Eastern Time wurde die Rakete mal mit kräftig und recht stürmisch einwirkendem Wasser gründlich gewaschen-

Daumen drücken, dass keine Schäden entstanden sind und nicht ein erneuter Roll-back nötig wird

Neues von der Artemis 1 - Mission:

Fri, 11 Nov 2022 22:21:38 +0000

Artemis

NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard is seen atop the mobile launcher at Launch Pad 39B, Friday, Nov. 11, 2022, at NASA’s Kennedy Space Center in Florida. Teams began walkdowns and inspections at the pad to assess the status of the rocket and spacecraft after the passage of Hurricane Nicole.

NASA continues to target launch of its Artemis I mission from the agency’s Kennedy Space Center in Florida at 1:04 a.m. EST, Wednesday, Nov. 16. There is a two-hour launch window for the agency’s first integrated flight test of its Space Launch System (SLS) rocket and Orion spacecraft.

Teams conducted thorough assessments at Launch Complex 39B beginning Thursday evening, closely inspecting SLS, Orion, mobile launcher, and other pad-related assets to confirm there were no significant impacts from Hurricane Nicole, which made landfall more than 70 miles south of the launch pad. The physical inspections augmented remote monitoring via sensors and high-resolution cameras performed during the storm by a team in a safe location at Kennedy.

Space Launch System engineers have performed detailed analysis to confirm the sustained and peak winds experienced during the storm have no adverse effect on the structural strength of the rocket. While varying peak winds were measured by sensors at different heights at the pad, all measurements remained below 75% of SLS design limits, which also are intentionally conservative. Data from testing with actual hardware during the structural test series and modal testing, as well as other evaluations and modeling, provide confidence there is margin beyond the design ratings.

Technicians also are working to fix several minor items from the storm. Most repairs involve loose caulk or weather coverings. An umbilical used to provide purge air, or proper environmental conditions to the Orion spacecraft, was out of position. The umbilical maintained purge throughout the storm and has been repositioned to allow proper retraction at liftoff. Engineers have also removed the hard cover over the launch abort system window installed before the storm and will inspect the window to confirm it is in good condition for launch.

Today, as part of normal launch preparation, engineers are in the process of powering up rocket and spacecraft elements to confirm all systems are healthy. Powered health checks will continue until Saturday. Engineers plan to conduct the standard final software and hardware-related tests required before launch, on Sunday. The Artemis I mission management team will convene Sunday afternoon to review the preparations for launch.

Update on our #Artemis I mission: pic.twitter.com/7F6brN86KF

— Jim Free (@JimFree) November 10, 2022

Siehe auch die Originalnachricht:

Teams Conduct Check-outs, Preparations Ahead of Next Artemis I Launch Attempt – Artemis

Neues von der Artemis 1 - Mission:

Sun, 13 Nov 2022 21:05:11 +0000

Artemis

Meteorologists with the U.S. Space Force Space Launch Delta 45 currently predict 90% favorable weather conditions for the Artemis I launch targeted for Nov. 16. Liftoff is scheduled for 1:04 a.m. EST with a two-hour launch window.

The mission management team will meet this afternoon to review the status of preparations for launch. NASA will host a teleconference at 7 p.m. to discuss the outcome following the meeting. Listen on the agency’s website at: https://www.nasa.gov/live .

Siehe auch die Originalnachricht:

Weather Forecast 90% Favorable for Artemis I Launch – Artemis

Neues von der Artemis 1 - Mission:

Mon, 14 Nov 2022 01:41:22 +0000

Artemis

The CAPSTONE mission operations team confirmed that NASA’s CAPSTONE spacecraft arrived at its orbit at the Moon Sunday evening. The CubeSat completed an initial orbit insertion maneuver, firing its thrusters to put the spacecraft into orbit, at 7:38 p.m. EST.

CAPSTONE is now in a near-rectilinear halo orbit, or NRHO. This particular NRHO is the same orbit that will be used by Gateway, the Moon-orbiting space station that will support NASA’s Artemis missions. CAPSTONE is the first spacecraft to fly an NRHO, and the first CubeSat to operate at the Moon.

In the next five days, CAPSTONE will perform two additional clean-up maneuvers to refine its orbit. After these maneuvers, the team will review data to confirm that CAPSTONE remains on track in the NRHO.

Siehe auch die Originalnachricht:

CAPSTONE Arrives to Orbit at the Moon – Artemis

Neues von der Artemis 1 - Mission:

Mon, 14 Nov 2022 03:01:29 +0000

Artemis

The Artemis I mission management team met Sunday evening to review the status of preparations for launch and gave a “go” to proceed toward a Nov. 16 launch attempt. The team will meet again Monday afternoon to review additional analysis associated with caulk on Orion’s launch abort system that came loose during Hurricane Nicole. The two-hour window for launch opens at 1:04 a.m. EST Wednesday. The countdown clock will begin at 1:54 a.m. Monday.

Within the next day, engineers will conduct detailed analysis of several feet of delaminated caulk where the ogive on Orion’s launch abort system meets the crew module adapter. The analysis will assess risk should it come loose during launch.

Overnight, in parallel with launch preparations, technicians also will remove and replace a component of an electrical connector on the hydrogen tail service mast umbilical ground-side plate. Engineers continue to see some inconsistent data provided through the connector, despite replacing the cable to the connector earlier in the week. Engineers have redundant sources for the information provided through the connector and it is not an impediment to launch.

NASA will provide a prelaunch status update Monday afternoon after the mission management team reconvenes.

Live coverage of tanking operations with commentary on NASA TV will begin on Tues., Nov. 15 at 3:30 p.m. EST. Full launch coverage in English will begin at 10:30 p.m. and NASA en espanol broadcast coverage will begin at 12 a.m. Wednesday. Click here for the latest information on launch briefings and events.

Siehe auch die Originalnachricht:

Managers Proceed Toward Nov. 16 Launch, to Meet Monday – Artemis

Neues von der Artemis 1 - Mission:

Mon, 14 Nov 2022 16:25:38 +0000

Artemis

Weather conditions for remain 90% favorable for the Artemis I launch based on the Monday, Nov. 14 forecast from meteorologists with the U.S. Space Force Space Launch Delta 45. Liftoff is scheduled for 1:04 a.m. EST with a two-hour launch window.

The mission management team will reconvene this afternoon to review additional analysis from overnight operations in preparation for launch. NASA is targeting a teleconference at 6 p.m. to discuss the outcome of the meeting. Listen on the agency’s website at: https://www.nasa.gov/live .

Siehe auch die Originalnachricht:

Weather Forecast Remains 90% Favorable for Artemis I Launch – Artemis

Neues von der Artemis 1 - Mission:

Tue, 15 Nov 2022 01:05:23 +0000

Artemis

Artemis I managers convened Monday afternoon to review the status of countdown operations as well as two open technical items, and gave a “go” to proceed toward launch Wednesday, Nov 16. The two-hour window for launch opens at 1:04 a.m. EST.

Engineers examined detailed analysis of caulk on a seam between an ogive on Orion’s launch abort system and the crew module adapter and potential risks if it were to detach during launch. The mission management team determined there is a low likelihood that if additional material tears off it would pose a critical risk to the flight. The area where caulk on a seam between the Orion launch abort system’s ogive and crew module adapter detached during Hurricane Nicole. A close-up view of the area.

Technicians also completed replacing a component of an electrical connector on the hydrogen tail service mast umbilical. While swapping the component did not fully fix the issue, engineers have redundant sources of information supplied through the connector.

Listen to a replay of the media teleconference Nov. 14.

The countdown, which began Monday at 1:54 a.m., is progressing smoothly. All elements of the rocket and spacecraft are powered up. Overnight, teams will charge flight batteries, conduct final walkdowns at the launch pad, and check out communications with Orion.

The following milestones remaining in the countdown are below. Live coverage of tanking operations with commentary on NASA TV will begin on Tuesday, Nov. 15 at 3:30 p.m. Full launch coverage in English will begin at 10:30 p.m. Click here for the latest information on launch briefings and events.

L-32 hours and counting

• Core stage composite overwrapped pressure vessel (COPV) Pressurization to Flight Pressure (L-32M – L-23H)
• The ICPS is powered down (L-31H – L-30H30M)
• Charge Orion flight batteries to 100% (L-31H – L-27H)
• Charge core stage flight batteries (L-28H – L-22H)
• The ICPS is powered-up for launch (L-19H30M – L-16H30M)

L-15 hours and counting

• All non-essential personnel leave Launch Complex 39B (L-13H – L-11H)
• Ground Launch Sequencer (GLS) activation (L-11H15M – 10H15M)
• Air-to-gaseous nitrogen (GN2) changeover and vehicle cavity inerting (L-11H45M – launch)

L-10 hours, 40 minutes and counting

• 3.5-hour built in countdown hold begins (L-10H40M – L-7H10M)
• Launch team conducts a weather and tanking briefing (L-10H40M – L-9H50M)
• Launch team decides if they are “go” or “no-go” to begin tanking the rocket (L-9H40M)
• Core stage LOX transfer line chilldown (L-9H15M – L-9H)
• Core stage LH2 transfer line chilldown (L-9H15M – L-8H45M)

L-8 hours and counting

• Core stage LOX main propulsion system chilldown (L-9H – L-8H20M)
• Core stage LH2 slow fill start (L-8H45M – L-7H50M)
• Core stage LOX slow fill (L-8H20M – L-8H5M)
• Core stage LOX fast fill (L-8H5M – L-5H15M)
• Core stage LH2 fast fill (L-7H50M – L-6H10M)
• Engine bleed kick start (L-7H40M – L-7H20M)
• Core stage LH2 topping (L-6H10M – L6H5M)
• Core stage LH2 replenish (L-6H5M – launch)
• Core stage LOX topping (L-5H15M– L-5H5M)
• ICPS LH2 ground support equipment and tank chilldown (L-5H20M – L-5H)

L-5 hours and counting

• Core stage LOX replenish (L-5H5M – launch)
• ICPS LOX main propulsion system chilldown (L-5H5M– L-4H45M)
• ICPS LH2 fast fill start (L-5H5M – L4H5M)
• Orion communications system activated (RF to mission control) (L-4H20M – L-3H45M)
• ICPS LOX fast fill (L-4H55M– L-4H10M)
• ICPS LOX validation and leak test (L-4H10M – L-3H40M)
• ICPS LH2 validation and leak test (L-4H – L-3H40M)
• ICPS LH2 tank topping start (L-3H40M – L-3H25M)
• ICPS LH2 replenish (L-3H25M – launch)
• ICPS LOX topping (L-3H40M – L-3H20M)
• ICPS LOX replenish (L-3H20M – launch)

• ICPS/Space Launch System telemetry data verified with Mission Control Center and SLS Engineering Support Center (L-2H55M – L-2H45M)
• ICPS LOX validation and leak test (L-2H55M – L-2H30M)
• ICPS LH2 replenish (L-2H50M – launch)
• ICPS LOX topping (L-2H30M – L-2H10M)
• ICPS LOX replenish (L-2H10M – launch)
• ICPS/Space Launch System (SLS) telemetry data verified with Mission Control Center and SLS Engineering Support Center (L-3H – L-2H50M)

L-50 minutes and counting

• Final NASA Test Director briefing is held (L-50M)

L-40 minutes and holding

• Built in 30-minute countdown hold begins (L-40M)

L-15 minutes and holding

• The launch director polls the team to ensure they are “go” for launch

T-10 minutes and counting

• Ground Launch Sequencer (GLS) initiates terminal count (T-10M)
• GLS go for core stage tank pressurization (T-6M)
• Orion ascent pyros are armed (T-6M)
• Orion set to internal power (T-6M)
• Core stage LH2 terminate replenish (T-5M57S)
• GLS is go for flight termination system (FTS) arm (T-5M)
• GLS is go for LH2 high flow bleed check (T-4M40S)
• GLS is go for core stage auxiliary power unit (APU) start (T-4M)
• Core Stage APU starts (T-4M)
• Core stage LOX terminate replenish (T-4M)
• ICPS LOX terminate replenish (T-3M30S)
• GLS is go for purge sequence 4 (T-3M10S)
• ICPS switches to internal battery power (T-1M56S)
• Core stage switches to internal power (T-1M30S)
• ICPS enters terminal countdown mode (T-1M20S)
• ICPS LH2 terminate replenish (T-50S)
• GLS sends “go for automated launch sequencer” command (T-33S)
• Core stage flight computer to automated launching sequencer (T-30S)
• Hydrogen burn off igniters initiated (T-12S)
• GLS sends the command for core stage engine start (T-10S)
• RS-25 engines startup (T-6.36S)

T-0

• Booster ignition, umbilical separation, and liftoff

Siehe auch die Originalnachricht:

Managers Give “Go” to Proceed Toward Launch, Countdown Progressing – Artemis

Neues von der Artemis 1 - Mission:

Tue, 15 Nov 2022 19:47:59 +0000

Artemis

The Artemis I mission management team met today to review the status of operations and has given the “go” to proceed toward tanking operations. Weather conditions are 80% favorable for the two-hour launch window which opens at 1:04 a.m. EST Nov. 16, with the primary concern being the potential for thick clouds.

Launch director Charlie Blackwell-Thompson is expected to give the “go” shortly to officially begin propellant loading operations. During tanking operations, teams will load the Space Launch System (SLS) rocket with liquid oxygen (LOX) and liquid hydrogen (LH2), beginning with the rocket’s core stage and then the interim cryogenic propulsion stage.

Tanking begins with chilling down the LOX and LH2 lines for the core stage. In sequential fashion, LOX and LH2 will flow into the rocket’s core stage tank and be topped off and replenished as some of the cryogenic propellant boils off. The process involves slowly filling the core stage with propellant to thermally condition the tank until temperature and pressure are stable before beginning fast fill operations, which is when the tank is filled at a quicker pump speed. As the super cold liquid oxygen fills the core stage tank, some venting may be visible.

At 3:30 p.m., NASA TV coverage begins with commentary of tanking operations to load propellant into the SLS rocket. Full coverage begins at 10:30 p.m. in English and at midnight Wednesday, Spanish coverage begins on NASA en español YouTube page.

Below are the countdown milestones as planned for tanking:

• Core stage LOX transfer line chilldown (L-9H15M – L-9H)
• Core stage LH2 transfer line chilldown (L-9H15M – L-8H45M)
• Core stage LOX main propulsion system chilldown (L-9H – L-8H20M)
• Core stage LH2 slow fill start (L-8H45M – L-7H50M)
• Core stage LOX slow fill (L-8H20M – L-8H5M)
• Core stage LOX fast fill (L-8H5M – L-5H15M)
• Core stage LH2 fast fill (L-7H50M – L-6H10M)
• Engine bleed kick start (L-7H40M – L-7H20M)
• Core stage LH2 topping (L-6H10M – L6H5M)
• Core stage LH2 replenish (L-6H5M – launch)
• Core stage LOX topping (L-5H15M– L-5H5M)
• ICPS LH2 ground support equipment and tank chilldown (L-5H20M – L-5H)
• Core stage LOX replenish (L-5H5M – launch)
• ICPS LOX main propulsion system chilldown (L-5H5M– L-4H45M)
• ICPS LH2 fast fill start (L-5H5M – L4H5M)
• Orion communications system activated (RF to mission control) (L-4H20M – L-3H45M)
• ICPS LOX fast fill (L-4H55M– L-4H10M)
• ICPS LOX validation and leak test (L-4H10M – L-3H40M)
• ICPS LH2 validation and leak test (L-4H – L-3H40M)
• ICPS LH2 tank topping start (L-3H40M – L-3H25M)
• ICPS LH2 replenish (L-3H25M – launch)
• ICPS LOX topping (L-3H40M – L-3H20M)
• ICPS LOX replenish (L-3H20M – launch)
• ICPS/Space Launch System telemetry data verified with Mission Control Center and SLS Engineering Support Center (L-2H55M – L-2H45M)
• ICPS LOX validation and leak test (L-2H55M – L-2H30M)
• ICPS LH2 replenish (L-2H50M – launch)
• ICPS LOX topping (L-2H30M – L-2H10M)
• ICPS LOX replenish (L-2H10M – launch)
• ICPS/Space Launch System (SLS) telemetry data verified with Mission Control Center and SLS Engineering Support Center (L-3H – L-2H50M)
• Final NASA Test Director briefing is held (L-50M)
• Built in 30-minute countdown hold begins (L-40M)
• The launch director polls the team to ensure they are “go” for launch
• Ground Launch Sequencer (GLS) initiates terminal count (T-10M)
• GLS go for core stage tank pressurization (T-6M)
• Orion ascent pyros are armed (T-6M)
• Orion set to internal power (T-6M)
• Core stage LH2 terminate replenish (T-5M57S)
• GLS is go for flight termination system (FTS) arm (T-5M)
• GLS is go for LH2 high flow bleed check (T-4M40S)
• GLS is go for core stage auxiliary power unit (APU) start (T-4M)
• Core Stage APU starts (T-4M)
• Core stage LOX terminate replenish (T-4M)
• ICPS LOX terminate replenish (T-3M30S)
• GLS is go for purge sequence 4 (T-3M10S)
• ICPS switches to internal battery power (T-1M56S)
• Core stage switches to internal power (T-1M30S)
• ICPS enters terminal countdown mode (T-1M20S)
• ICPS LH2 terminate replenish (T-50S)
• GLS sends “go for automated launch sequencer” command (T-33S)
• Core stage flight computer to automated launching sequencer (T-30S)
• Hydrogen burn off igniters initiated (T-12S)
• GLS sends the command for core stage engine start (T-10S)
• RS-25 engines startup (T-6.36S)
• T-0: Booster ignition, umbilical separation, and liftoff

Siehe auch die Originalnachricht:

Mission Managers Give “Go” to Proceed Toward Tanking Operations for Artemis I – Artemis

Neues von der Artemis 1 - Mission:

Tue, 15 Nov 2022 20:22:52 +0000

Artemis

Artemis Launch Director Charlie Blackwell-Thompson has given the “go” to officially begin loading propellants into the Space Launch System rocket. Tanking begins with chilldown of the core stage liquid oxygen and liquid hydrogen transfer lines.

NASA TV coverage begins at 3:30 p.m. EST at http://www.nasa.gov/live

Siehe auch die Originalnachricht:

Launch Director Gives “Go” to Begin Tanking Operations for Artemis I – Artemis

Neues von der Artemis 1 - Mission:

Tue, 15 Nov 2022 21:40:49 +0000

Artemis

Teams have begun the slow fill phase to load liquid hydrogen (LH2) and liquid oxygen (LOX) into the Space Launch System rocket’s core stage. Once LH2 and LOX slow fill is complete, teams will transition to fast fill operations.

Below are the as scheduled times for slow and fast fill operations:

• 4:24 p.m.: Core stage LH2 slow fill start (L-8H45M – L-7H50M)
• 4:44 p.m.: Core stage LOX slow fill (L-8H20M – L-8H5M)
• 5:04 p.m.: Core stage LOX fast fill (L-8H5M – L-5H15M)
• 5:14 p.m.: Core stage LH2 fast fill (L-7H50M – L-6H10M)

Follow along with live coverage and with the countdown milestones ahead of the Artemis I mission.

Siehe auch die Originalnachricht:

Core Stage Propellant Loading Underway  – Artemis

Neues von der Artemis 1 - Mission:

Tue, 15 Nov 2022 22:10:57 +0000

Artemis

Fast fill operations are underway for the Space Launch System rocket’s core stage liquid oxygen and liquid hydrogen tanks.

Siehe auch die Originalnachricht:

Core Stage Liquid Oxygen and Liquid Hydrogen Fast Fill Underway – Artemis

Neues von der Artemis 1 - Mission:

Tue, 15 Nov 2022 23:44:42 +0000

Artemis

Engineers have completed filling the core stage liquid hydrogen tank, and have moved into the replenish phase. Core stage liquid oxygen fast fill is still underway. Although the LH2 tank is larger than the LOX tank, LOX is denser than LH2 and takes longer to load.

Teams continue to work toward a two-hour launch window that opens at 1:04 a.m. EST, from Launch Pad 39B at NASA’s Kennedy Space Center in Florida.

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Core Stage Liquid Hydrogen in Replenish – Artemis

Neues von der Artemis 1 - Mission:

Wed, 16 Nov 2022 00:46:16 +0000

Artemis

Engineers have completed filling the core stage liquid oxygen tank and have moved into the replenish phase. Teams are beginning operations to load liquid hydrogen into the rocket’s interim cryogenic propulsion stage.

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Core Stage Liquid Oxygen in Replenish, Upper Stage Tanking to Begin – Artemis

Neues von der Artemis 1 - Mission:

Wed, 16 Nov 2022 01:24:27 +0000

Artemis

Teams are in fast fill operations for the interim cryogenic propulsion stage’s (ICPS) liquid hydrogen and liquid oxygen tanks. The ICPS is the upper stage of the Space Launch System rocket responsible for giving the Orion spacecraft the big push it needs in space to head toward the Moon.

Teams continue to work toward a two-hour launch window that opens at 1:04 a.m. EST, from Launch Pad 39B at NASA’s Kennedy Space Center in Florida.

Coverage of tanking operations continues on NASA TV and the agency’s website and the NASA app. A full launch broadcast will begin at 10:30 p.m. EST in English and at midnight, Spanish coverage begins on the NASA en español YouTube page.

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Upper Stage Liquid Hydrogen and Liquid Oxygen in Fast Fill – Artemis

Neues von der Artemis 1 - Mission:

Wed, 16 Nov 2022 02:34:56 +0000

Artemis

Engineers have paused flowing liquid hydrogen into the core stage because of a small leak on a hydrogen valve inside of the mobile launcher. A team of personnel called a red crew is being assembled to go to the pad to make sure all of the connections and valves remain tight. The valve is located within the base of the mobile launcher.

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Core Stage Liquid Hydrogen Flow Paused, Red Crew Being Assembled – Artemis

Neues von der Artemis 1 - Mission:

Wed, 16 Nov 2022 03:12:13 +0000

Artemis

Technicians who are part of the “red crew” of personnel specially trained to conduct operations at the launch pad during cryogenic loading operations have arrived at the launch pad. They will enter the zero deck or base of the mobile launcher to tighten connections to ensure a hydrogen valve used to replenish the core stage remains tight.

NASA has historically sent teams to the pad to conduct inspections during active launch operations as needed.

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Red Crew Arrives at Pad – Artemis

Neues von der Artemis 1 - Mission:

Wed, 16 Nov 2022 04:08:31 +0000

Artemis

The red crew has departed the launch pad and is now outside the designated danger area surrounding the pad. The technicians entered the zero deck, or base, of the mobile launcher and tightened several bolts to troubleshoot a valve used to replenish the core stage with liquid hydrogen which showed a leak with readings above limits. The launch team will check the valves to determine if the leak has been fixed and resume launch countdown operations.

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Red Crew Departs Pad – Artemis

Neues von der Artemis 1 - Mission:

Wed, 16 Nov 2022 04:55:29 +0000

Artemis

Teams are replenishing liquid hydrogen into the core stage and report seeing good data where a red crew tightened connections in the area of a leaky valve on the mobile launcher. The leak is not reoccurring. Engineers are back into liquid hydrogen fast fill operations on the interim cryogenic propulsion stage.

Engineers also are tracking the loss of signal from a radar site required for launch. The Range is in the process of troubleshooting it while launch operations continue.

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Core Stage Liquid Hydrogen Back in Replenish, Upper Stage in Fast Fill – Artemis