Meteorologists with the U.S. Space Force 45th Weather Squadron now predict an 80% chance of favorable weather for today’s uncrewed launch of NASA’s Boeing Orbital Flight Test-2 (OFT-2) to the International Space Station. Liftoff is scheduled for 6:54 p.m. EDT from Cape Canaveral Space Force Station in Florida.
The primary weather concerns for launch day are the cumulus and anvil cloud rules violations during the instantaneous launch window.
Boeing’s CST-100 Starliner spacecraft, atop a United Launch Alliance Atlas V rocket, will lift off from Space Launch Complex-41. Live launch coverage begins at 6 p.m. EDT on NASA TV, the NASA app, and the agency’s website.
On Wednesday, May 4, Boeing’s CST-100 Starliner was joined with the rocket that will launch the spacecraft on its way to the International Space Station on an uncrewed flight test for NASA’s Commercial Crew Program.
During the operation, Starliner rolled out of the Commercial Crew and Cargo Processing Facility (C3PF) at NASA’s Kennedy Space Center in Florida and made its way to Space Launch Complex-41 (SLC-41) at Cape Canaveral Space Force Station in preparation for the company’s second uncrewed Orbital Flight Test (OFT-2)
Starliner was raised and carefully placed onto the rocket and now is fully assembled and ready for an integrated systems test, a tip-to-tail electrical check of the 172-foot-tall Atlas V and Starliner stack.
OFT-2 is scheduled to launch Thursday, May 19, to demonstrate the system’s human transportation capabilities.
About 24 hours after launch, Starliner will rendezvous and dock to the space station and then return to Earth five to 10 days later. The test is the last flight before the Starliner system launches American astronauts on the Crew Flight Test (CFT) to the microgravity laboratory – the spacecraft’s first flight test with crew on board. Potential launch windows for CFT are under review and will be determined after a safe and successful OFT-2.
NASA and Boeing will hold a joint media teleconference at noon EDT on Tuesday, May 3, to discuss the agency’s Boeing Orbital Flight Test (OFT-2) mission and provide an update on spacecraft readiness.
The teleconference includes the following participants:
Kathryn Lueders, associate administrator, Space Operations Mission Directorate, NASA Headquarters
Steve Stich, manager, Commercial Crew Program, NASA’s Kennedy Space Center in Florida
Joel Montalbano, manager, International Space Station Program, NASA’s Johnson Space Center in Houston
Michelle Parker, vice president and deputy general manager, Space and Launch, Boeing
Mark Nappi, vice president and program manager, CST-100 Starliner, Boeing
OFT-2 is scheduled to launch on Thursday, May 19, from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida. Boeing’s uncrewed CST-100 Starliner will launch atop a United Launch Alliance Atlas V rocket for its flight test to the International Space Station as part of NASA’s Commercial Crew Program.
Starliner is expected to arrive at the space station for docking about 24 hours later with more than 500 pounds of NASA cargo and crew supplies. After a successful docking, Starliner will spend five to 10 days aboard the orbiting laboratory before returning to Earth in the western United States. The spacecraft will return with nearly 600 pounds of cargo, including reusable Nitrogen Oxygen Recharge System (NORS) tanks that provide breathable air to station crew members.
Media wishing to participate in the OFT-2 mission overview news teleconference must RSVP by 11 a.m., Tuesday, May 3, by emailing the Kennedy newsroom at email@example.com.
Following completion of a third planned start and then cutoff of the United Launch Alliance Atlas V 541 Centaur main engine, the National Oceanic and Atmospheric Administration’s (NOAA) Geostationary Operational Environmental Satellite-T (GOES-T) satellite separated from the spacecraft and is continuing on its journey to help meteorologists observe and predict local weather events, including thunderstorms, tornadoes, fog, hurricanes, flash floods and other severe weather.
In addition, GOES observations have proven helpful in monitoring dust storms, volcanic eruptions, and forest fires.
“That is what it’s all about – when we get to the spacecraft separation. It’s years of work going into that one event,” said NASA Launch Director Tim Dunn. “Today, we were blessed with a smooth and successful countdown.”
A joint effort between NASA and NOAA, GOES-T will be renamed GOES-18 once it reaches geostationary orbit, replacing GOES-17 as GOES West. It will be positioned to watch over the western contiguous United States, Alaska, Hawaii, Mexico, Central America, and the Pacific Ocean. The satellite will be ideally located to monitor weather systems and hazards that most affect this region of the Western Hemisphere.
GOES-T is about the size of a small school bus and weighs more than 6,000 pounds. Liftoff, aboard a United Launch Alliance Atlas V 541 rocket from Cape Canaveral Space Force Station’s Space Launch Complex 41 in Florida, occurred right at the top of the two-hour launch window, at 4:38 p.m. EST. All milestones were successfully reached – from liftoff through spacecraft separation.
Have you ever wondered what the three numbers (541) on United Launch Alliance’s Atlas V 541 rocket stand for? The numbers signify a payload fairing, or nose cone, that is approximately 5 meters (16.4 feet) in diameter; 4 solid-rocket boosters fastened alongside the central common core booster; and a 1-engine Centaur upper stage.
Just an interesting fact to throw in while we announce main engine cutoff (MECO) has occurred and the first stage has separated from the rocket. Coming up next, in about 10 minutes, will be Centaur main engine start #2, followed by main engine cutoff #2 about five minutes later.
3, 2, 1 … LIFTOFF! The National Oceanic and Atmospheric Administration’s (NOAA) Geostationary Operational Environmental Satellite-T (GOES-T) satellite spacecraft lights up the late afternoon Florida sky as it roars off the launch pad at Cape Canaveral Space Force Station on a joint effort with NASA to help meteorologists observe and predict local weather events.
Stay right here on the blog, or tune in to NASA TV, the NASA app, or the agency’s website to watch the spacecraft and rocket eclipse more launch milestones. Live coverage continues through GOES-T spacecraft separation at approximately 8:30 this evening. The next milestone is main engine cutoff, or MECO, coming in about 10 minutes.
Excitement is building as the mission nears launch. A joint effort between NASA and NOAA, GOES-T will help meteorologists observe and predict local weather events, including thunderstorms, tornadoes, fog, hurricanes, flash floods and other severe weather.
If you’re just joining us, liftoff – aboard a United Launch Alliance Atlas V 541 rocket from Canaveral Space Force Station’s Space Launch Complex 41 – is set for 4:38 p.m. EST. Stay right here, or tune in to NASA TV, the NASA app, or the agency’s website for continuing coverage.
The weather outlook for today’s National Oceanic and Atmospheric Administration’s (NOAA) Geostationary Operational Environmental Satellite-T (GOES-T) satellite launch from Cape Canaveral Space Force Station remains positive. Weather officials with the Space Force Station’s 45th Weather Squadron predict an 80% chance of favorable conditions for liftoff from Space Launch Complex 41.
The launch, which is managed by NASA’s Launch Services Program, based at NASA’s Kennedy Space Center, is targeted for 4:38 p.m. EST. There is a two-hour launch window.
“Liftoff winds are going to be our primary concern with a smaller concern coming from some of those passing cumulus clouds,” said Arlena Moses, launch weather officer with the 45th Weather Squadron.