OrbitalHub

SpaceX dixit:

“When Falcon Heavy lifts off, it will be the most powerful operational rocket in the world by a factor of two. With the ability to lift into orbit nearly 64 metric tons (141,000 lb)—a mass greater than a 737 jetliner loaded with passengers, crew, luggage and fuel–Falcon Heavy can lift more than twice the payload of the next closest operational vehicle, the Delta IV Heavy, at one-third the cost.

Falcon Heavy’s first stage is composed of three Falcon 9 nine-engine cores whose 27 Merlin engines together generate more than 5 million pounds of thrust at liftoff, equal to approximately eighteen 747 aircraft.

Following liftoff, the two side boosters separate from the center core and return to landing sites for future reuse. The center core, traveling further and faster than the side boosters, also returns for reuse, but lands on a drone ship located in the Atlantic Ocean.

At max velocity the Roadster will travel 11 km/s (7mi/s) and travel 400 million km (250 million mi) from Earth.”

Video credit: SpaceX

NASA dixit:

“In a test targeted for April 2019 known as Ascent Abort-2, NASA will verify the Orion spacecraft’s launch abort system, a tower on top of the crew module, can steer the capsule and astronauts inside it to safety in the event of an issue with the Space Launch System rocket when the spacecraft is under the highest aerodynamic loads it will experience during ascent for deep-space missions. The test is quick, fast and high, lasting less than three minutes with the test crew module reaching an average speed of Mach 1.5, roughly 1020 miles per hour, at approximately 32,000 feet in altitude.”

Video credit: NASA Johnson

NASA dixit:

“Exploration Mission-1 (EM-1) will be the first integrated flight of NASA’s Space Launch System and Orion spacecraft and launch from the agency’s modernized spaceport in Florida. The uncrewed mission will send Orion thousands of miles beyond the Moon and is a critical flight test for NASA’s human deep space exploration goals. EM-1 lays the foundation for the first crewed flight of SLS and Orion, as well as a regular cadence of missions thereafter near the Moon and beyond.”

Video credit: NASA Johnson

NASA dixit:

“The SpaceX CRS-13 mission begins with an on-time liftoff of the company’s Falcon 9 rocket and Dragon spacecraft from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida. Launch occurred on December 15 at 10:36 a.m. EST. The Dragon is carrying equipment, science and supplies to the International Space Station on SpaceX’s 13th commercial cargo resupply mission.”

Video credit: NASA Kennedy Space Center

Europe’s Galileo satellite navigation system performed a giant leap nearer completion on Tuesday 12 December, as four more Galileo satellites were launched into orbit by Ariane 5.

Liftoff from Europe’s Spaceport in Kourou, French Guiana took place at 18:36 UTC (19:36 CET, 15:36 local time), carrying Galileo satellites 19–22. Separation of the upper stage occurred about nine minutes after liftoff, followed by the first firing of the upper stage. The upper stage – carrying four 715-kg Galileo satellites – flew in ballistic configuration for three hours and eight minutes, after which a second upper stage firing placed it into circular separation orbit. Once stabilised at 3h 35 min after liftoff, the Galileo dispenser released the first two satellites, followed by the second pair 20 minutes later.

At orbital injection the launcher attained an altitude of 22 925 km, approximately 300 km below the Galileo satellites’ operational altitude. The four satellites manoeuvred themselves up to this height, leaving the passivated upper stage safely in a ‘graveyard orbit’.

Video credit: ESA

ESA dixit:

“ESA and European industry are currently developing a new-generation launcher: Ariane 6. This follows the decision taken at the ESA Council meeting at Ministerial level in December 2014, to maintain Europe’s leadership in the fast-changing commercial launch service market while responding to the needs of European institutional missions. This move is associated with a change in the governance of the European launcher sector, based on a sharing of responsibility, cost and risk by ESA and industry.

The participating states are: Austria, Belgium, Czech Republic, France, Germany, Ireland, Italy, Netherlands, Norway, Romania, Spain, Sweden and Switzerland.

The overarching aim of Ariane 6 is to provide guaranteed access to space for Europe at a competitive price without requiring public sector support for exploitation. Different concepts have been examined for Ariane 6 such as single- and dual-payloads, solid or cryogenic propulsion for the main stage, and the number of stages (three or more), all to cover a wide range of missions: GEO, either directly or through intermediate orbits, in particular GTO and LEO; Polar/SSO; MEO or MTO.

The targeted payload performance of Ariane 6 is over 4.5 t for polar/Sun-synchronous orbit missions at 800 km altitude and the injection of two first-generation Galileo satellites. Ariane 6 can loft a payload mass of 4.5–10.5 tonnes in equivalent geostationary transfer orbit.

The exploitation cost of the Ariane 6 launch system is its key driver. Launch service costs will be halved, while maintaining reliability by reusing the trusted engines of Ariane 5. The first flight is scheduled for 2020.”

Video credit: ESA