This morning at 11:14 AM EDT United Launch Alliance (ULA) successfully launched another Orbital ATK Cygnus spacecraft towards the International Space Station (ISS). This was the third Cygnus that ULA has launched for Orbital and at the present time the last.
Named after the late John Glenn, former Astronaut and US Senator who passed away last December. The launch was delayed several times to allow ULA time to address some issues with the launch vehicle and pad, and then to accommodate the hectic ISS schedule. The vehicle is carrying 3,459 kg (7,626 lb) of cargo to the space station and will spend at least 80 days at the station before being released. After it is successfully completed its mission another of the Saffire experiments will be performed, where a controlled fire will lite. Once that is complete the vehicle will burn up in the atmosphere.
The countdown proceeded smoothly this morning with an on-time launch, which concluded when the Cygnus spacecraft was delivered to orbit.
This was ULA’s 71st Atlas V, 36th 401 config, 4th launch of 2017 and 119th consecutive successful launch keeping their perfect 100% record.
As a side note, this was the last launch for NASA PAO George Diller who has been the voice of NASA for many launches in the past. We hope that he has a great and long retirement and will miss hearing his commentary.
United Launch Alliance began their 2017 launch manifest with the successful delivery of the Air Force’s Space-Based Infrared System (SBIRS) GEO-3 satellite.
The launch was originally scheduled to launch yesterday but was delayed due to a sensor issue on the RD-180 engine the Atlas V 401 and then a fouled range with an aircraft encroaching on the keep out zone.
The countdown today proceeded smoothly with an on time launch occurring at 7:41 pm ET from Space Launch Complex (SLC) 41 at Cape Canaveral and delivered the payload to orbit 43 minutes later.
Last night United Launch Alliance (ULA) launched an Orbital ATK Cygnus spacecraft towards the International Space Station (ISS). This is the second Cygnus that has launched on an Atlas V rocket and will be the heaviest payload the Atlas V has ever launched. Even with the heavier payload ULA didn’t require any Solid Rocket Boosters as Cygnus is only launching to Low Earth Orbit.
Continuing in the tradition of previous Cygnus launches Orbital ATK named this vehicle the S.S. Rick Husband in honor of Col. Rock Husband USAF.
Update: After the launch a number of people noticed that the burn time on the Centaur upper stage was almost a minute longer than originally planned. ULA has since announced that this was caused by the first stage RD-180 engine shutting down 5 seconds earlier than originally planned requiring the Centaur to compensate for the difference. They are investigating why the engine shutdown early and don’t currently know if this could impact the next Atlas V launch.
More than a year after the catastrophic failure of the Antares Launch vehicle which resulted in the lose of the Cygnus Cargo vehicle and its payload Orbital’s enhanced Cygnus vehicle lifted off from Cape Canaveral today with the help of an United Launch Alliance Atlas V rocket. The launch which was delayed three times due to inclement weather finally lifted off this afternoon when the Atlas V RD-180 came to life.
Orbital elected to purchase two Atlas V launches to allow it to resume its Commercial Resupply contract with NASA for the International Space Station while the enhancements to its Antares rocket continue. Orbital were also able to introduce there enhanced Cygnus vehicle which can carry an additional 1,200-1,500 kg of cargo depending on launch vehicle.
This evening United Launch Alliance launched the seventh Wideband Global SATCOM (WGS) military communications satellite aboard its Delta IV rocket. The launch, which was delayed yesterday due to stormy weather, proceeded with a smooth countdown this afternoon resulting in the Delta IV lifting off at 8:07 pm EDT.
Once in orbit the 2nd stage will burn twice to deploy the satellite to its desired orbit. Once deployed the satellite deployed its solar arrays to begin on-orbit operations.
While SpaceX have yet to successfully land a Falcon 9 first stage it appears their vision has spurred the industry to react with both United Launch Alliance (ULA) and now Airbus Aerospace announcing plans to include re-usable components in future rocket designs.
The three companies have quite different plans to achieve the re-use.
SpaceX – Plan to land the complete first stage initially on their Autonomous Spaceport Drone Ship (ASDS) which is placed about 400 miles off the Florida coast during liftoff. Eventually they would like to return the stage to landing pads located near the original launch pad.
ULA – Their new Vulcan rocket will allow the Engines to be re-used. Once the first stage has completed its work the engines will be detached, an inflatable heat shield will protect them during re-entry and then an Parafoil will be used to slow the descending engines so that a helicopter can capture them while still in the air.
Airbus – They plan to have a detachable module too which contains the engines and main avionics, unlike the ULA module this will be a winged module that will return to Earth and land like a plane.
Only time will tell how successful these plans are however SpaceX has two big advantages at present.
First they are already testing their design and have already demonstrated that they can return the full first stage to the ASDS, they just haven’t been successful at landing it yet. The next attempt will be later this month during the CRS-7 launch. ULA will not be flying the Vulcan rocket until at least 2019 and the Ariane 6 rocket will not include the re-usable module initially.
Second once they have successfully landed a first stage they will be able to determine just how quickly it could be re-used. The other two plans will require that the rest of the first stage be constructed each time before the engines can be attached.
This week NASA announced that it had awarded Boeing the first Commercial Crew flight contract under the CCtCap program. However it is important to realize that while the contract has been awarded, as NASA started in the press release.
Determination of which company will fly its mission to the station first will be made at a later time.
So why were Boeing selected first? This is a matter of scheduling, the Boeing CST-100 module will be launched atop a ULA Atlas V rocket to ensure that they are able to launch by late 2017 they need to book the flight now to enter the processing flow. SpaceX has a shorter lead time for their rockets as they manufacture the whole system internally.
There is no denying that this is a significant step both for NASA and Boeing but as they stated there is not guarantee that just because they were awarded the first contract means they will actual fly the first contracted flight. This will be determined once future milestones in the CCtCap program have been completed and NASA can be confident that they can complete the flight when needed.