SpaceX successfully conducts static fire test in preparation for DSCOVR launch
CAPE CANAVERAL, Fla. — Space Exploration Technologies (SpaceX ) successfully completed a static fire test of the aerospace firm’s Falcon 9 v1.1 rocket that will be used to launch the DSCOVR into orbit on Feb. 8. The test was performed with the rocket on the pad at Space Launch Complex 40 (SLC 40) at Cape Canaveral Air Force Station in Florida and ran for the full duration.
For this test, an eight hour window was blocked off, which included additional time in case any issues arose requiring further attention. However, on the actual launch day, crews will be working with an instantaneous window with no time for troubleshooting.
The static fire test – is the last in a long series of requirements that has to be carried out before the F9 is given the final go-ahead for launch. During the test fire, controllers walk the Falcon 9 v1.1 through all the steps that it will encounter at launch. On launch day, the Falcon 9 will be fueled with RP-1 (a refined version of kerosene) propellant as well as the liquid oxygen oxidizer two hours and thirty five minutes before liftoff.
During the test, SpaceX walks the booster through the entire launch sequence – including the activation of the nine Merlin 1D rocket engines that comprise the Falcon 9’s first stage. The rocket is held in place and the engines are only active long enough to confirm that everything is functioning as advertised.
DSCOVR is a joint NASA-NOAA mission (along with the U.S. Air Force) which is designed to study solar activity and provide early warning of dangerous solar events that could impact Earth and space-based systems. The mission has already cleared the Key Decision Point C Review, suggesting that the delay could be related to the Falcon 9 booster itself.
DSCOVR is currently managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland and, when deployed, will orbit at the L1 libration point. This is the location in space where the Sun’s and Earth’s gravitational pull cancels each other out. L1 is approximately one million miles away from Earth towards the direction of the Sun.
If everything goes according to plan, the spacecraft will be able to provide crucial data on solar flares which could cause an estimated $1 to $2 trillion in damage to systems such as the Global Positioning System (GPS), air travel, satellite operations as well as human space exploration efforts.
Through this partnership, NASA used funds obtained from the NOAA to refurbish the DSCOVR satellite and its scientific instruments which were placed in storage for several years. NASA is also working on the ground support systems for DSCOVR.
DSCOVR has a long and interesting history. Initially dubbed “Triana,” after Rodrigo de Triana, the member of Columbus’ crew who first spotted land, the mission was scheduled to fly on STS-107, the ill-fated final flight of space shuttle Columbia. The satellite cost an estimated $100 million and was placed in storage throughout the course of President George W. Bush’s time in office. In 2008, the mission was taken out of storage and renamed DSCOVR.
The launch of DSCVR on Feb. 8, has a scheduled liftoff time of 6:10 p.m. EST (2310 GMT), with a backup launch date of Feb. 9 at 6:07 p.m. EST (2307 GMT). This flight will mark the second launch for SpaceX in 2015, and will offer the NewSpace company a second attempt at landing the first stage on an autonomous spaceport drone ship (ASDS), more affectionately referred to as “Just Read the Instructions”, in honor of the science fiction author Iain M. Banks.
Following the Jan. 10 launch of a Falcon 9 carrying the Dragon spacecraft to the International Space Station (ISS), SpaceX made the first-ever attempt at landing a rocket’s first stage on the ASDS. As previously reported on Spaceflight Insider, the first stage landed hard resulting in what SpaceX referred to as a “rapid unexpected disassembly” or RUD for short.
In order to assist with the landing attempt, engineers added grid fins to the first stage booster. Following the landing attempt, data showed the fins ran out of hydraulic fluid needed to land properly. The next Falcon flight will contain 50 percent more hydraulic fluid for the grid fins, and the company is hopeful that landing attempt will be successful.
Prior to the Jan. 10 landing attempt, the NewSpace company has made several attempts at oceanic soft landings. Once the company believes it has mastered an oceanic pad landing, the company plans to land on solid ground at Cape Canaveral Air Force Station’s Space Launch Complex 13 (SLC-13).
Stay tuned to Spaceflight Insider for further coverage of this mission.
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