Images credit & copyright: SpaceX. Live streaming links and mission information at the bottom. Check back for updates.
LAUNCH ALERT! Friday, December 22, 2017 at 17:27 PST (20:17 EST & 01:27 UTC), a previously flown SpaceX Falcon 9 (core 1036.2) will rise from Space Launch Complex 4-East (SLC-4E) at Vandenberg Air Force Base, California carrying 10 satellites (NEXT 31-40) for the Iridium Corporation’s communication constellation.
Stats: This will be SpaceX’s 18th launch of 2017, the 46th Falcon 9 flight overall and the 5th reuse of a Falcon 9 booster. There will be no landing attempt during this mission in order to remove the block 3 Falcons from inventory. To date there have been 20 landings overall; 12 on drone ships and 8 on land. Booster B1036.2 was first used on SpaceX’s Iridium 2 mission in June.
Autonomous Spaceport Drone Ships (ASDS): Were built at the Conrad Shipyard in Morgan City, Louisiana, the same place that NASA’s Pegasus barge was refitted to support the SLS program. Pegasus carried lots of equipment throughout the years but most famously the space shuttle external fuel tanks from NASA’s Michaud Plant in Louisiana to KSC.
SpaceX’s barges are 300 by 100 ft. with “wings” that extend that width to 170 ft. It has also been fitted with thrusters repurposed from deep sea oil rigs that are able to hold balance and position to within 3 meters even in storm conditions. ASDS’s are painted black with the SpaceX “X” logo, a yellow inner ring and outer white ring acting as a bull eye. The East Coast ASDS is “Of Course I Still Love You (OCISLY)” and the West Coast’s ship is “Just Read The Instructions (JRTI).”
In total there have been three ASDS’s. The first of which was Marmac 300, a deck barge named “Just Read The Instructions (JRTI).” That ASDS was used for two east coast landing attempts (CRS 5 & 6), deconstructed and retired. East Coast duties were then transferred to Marmac 304 named “Of Course I Still Love You (OCISLY).” A third ASDS, Marmac 303 was constructed and stationed on the West Coast where it fields launches from Vandenberg AFB, CA. Its name, “Just Read The Instructions (JRTI).”
These fun yet odd names come from Scottish Sci-fi legend Iain Banks’s “Culture” series of 10 novels. They are spacecraft known as General Contact Units (GCU’s) from the novel “Player of Games.” Other spacecraft in the series (which get to name themselves) are even more entertaining such as “Size Isn’t Everything,” “No More Mr. Nice Guy” and “Death and Gravity.” Here’s a fun Wiki page with more info: http://en.wikipedia.org/wiki/List_of_spacecraft_in_the_Culture_series
The Rocket: The greatly improved Falcon 9 “Block 3” Full Thrust (FT) is a 2-stage partially reusable launch vehicle with future ambitions of becoming fully reusable. The new version is 3.66 m (12 ft.) in diameter and 70 m (229.6 ft.) tall which is about 1.6 m (5.6 ft.) taller than the Falcon 9 v1.1 or “Block 2” in order to house a higher volume fuel tank. It is also fitted with upgraded Merlin family main engines. They have replaced the 9 Merlin-1D (and before them were the 1C engines), with the more powerful Merlin-1D+ engines that will provide a thrust of nearly 694,000kg (1.53 million lb.) at sea level. Each Merlin-1D+ provides 180,000 lb. (81,600 kg) of thrust at sea level, which equates to roughly a 20% increase in overall performance. If you add that with the new process of densifying the fuel and improving the overall airframe, the total gain in performance is about 33%.
Also currently in use is the Falcon 9 “Block 4” FT which is an upgraded Block 3 and it serves as the relatively short transition vehicle to the “Block 5” Falcon 9 which should be flying in 2018 and what Elon himself says is the final version of the Falcon 9 rocket. Details haven’t been released but greater engine performance and reusability upgrades will be the main improvements.
Dragon Spacecraft (when in use): The Dragon spacecraft is about 23.6 ft. (7.2 m) tall with trunk attached and 12 ft. (3.7 m) wide. It’s comprised of two main sections; the pressurized cargo area which can carry 388 cubic ft. of cargo as well as the unpressurized cargo area. The trunk (unpressurized area) carries 494 cubic ft. of cargo as well as the solar arrays. Dragon, along with Russia’s Progress & Soyuz, Europe’s (ESA) Automated Transfer Vehicle (ATV), Orbital ATK’s Cygnus and Japan’s (JAXA) H-II Transfer Vehicle (HTV), is one of only six vehicles that can fly to the Space Station. While Russia’s Soyuz is currently the only crewed means of reaching and returning from Station, SpaceX’s Dragon is currently the only means of returning experiments and supplies back to Earth from Station.
Main Composite Payload Fairing (when in use): the two shell, composite payload fairing is 13 m (43 ft.) in length and 5.2 m (17 ft.) in diameter. The fairings are used to protect the spacecraft during ascent through atmospheric turbulence and into space. Once the rocket has reached a safe altitude the fairings jettisoned, exposing the spacecraft(s).
Second Stage: The Falcon 9 second stage is 10 m (33 ft.) in length, 3.66 m (12 ft.) in diameter and is powered by a single, gas generator, open-cycle, turbopump Merlin-1D+ (plus) vacuum engine utilizing rocket propellant 1 (RP1) as fuel and liquid oxygen (LOX) as an oxidizer. The Merlin 1D+ Vacuum engine boasts 934 kN thrust in a vacuum, a chamber pressure is more than 100 bar, a specific impulse of 348s in a vacuum with a burn time of 397 seconds.
Interstage: is a 4.4m (14.4 ft.) composite structure that connects the first stage to the second stage and holds the release and separation system. Its al all pneumatic stage separation system for low shock, highly reliable separation that can be tested on the ground, unlike pyrotechnic systems used on most launch vehicles.
Core/First Stage: The Falcon 9 first stage is 47 m (154 ft.) in length (including interstage), 3.66 m (12 ft.) in diameter and is powered by nine, gas generator, open-cycle, turbopump Merlin-1D+ (plus) engines in a circular “octaweb” configuration; each utilizing rocket propellant 1 (RP1) as fuel and liquid oxygen (LOX) as an oxidizer. Each Merlin 1D+ boasts 845 kN thrust at sea level, 914 kN thrust in a vacuum for a total liftoff thrust of 7,607 kN (1,710,000 lb.). Chamber pressure is more than 100 bar and specific impulse is 282s at sea level and 311s in a vacuum with a burn time of 162 seconds.
The first stage is fitted with four independently steerable titanium grid fins that help control pitch, yaw and roll during vertical decent as well as four landing legs that extend before touchdown.
SpaceX Webcast: http://www.spacex.com/webcast/
SpaceX YouTube (Hosted Webcast): https://www.youtube.com/watch?v=wtdjCwo6d3Q
SpaceX YouTube (Technical Webcast):
SpaceX Facebook: https://www.facebook.com/SpaceX
Iridium 4 (NEXT 31-40) Mission Info:
45th Space Wing L-1 Weather Forecast (not applicable for this launch): http://www.patrick.af.mil/About-Us/Weather
SpaceX CRS-13 Press Kit:
Iridium 4 (NEXT 31-40) Launch Campaign (Reddit): https://www.reddit.com/r/spacex/comments/7cgts7/iridium_next_constellation_mission_4_launch/
General 2017 Launch List (Wiki): https://en.wikipedia.org/wiki/2017_in_spaceflight
Elon Musk Twitter: https://twitter.com/elonmusk
Elon Musk Instagram: https://www.instagram.com/elonmusk
SpaceX Twitter: https://twitter.com/SpaceX
SpaceX Facebook: https://www.facebook.com/SpaceX
SpaceX Instagram: https://www.instagram.com/spacex
SpaceX YouTube: https://www.youtube.com/user/spacexchannel
SpaceX Google Plus: https://plus.google.com/+SpaceX
SpaceX Flickr: https://www.flickr.com/photos/spacexphotos
Iridium CEO Matt Desch: https://twitter.com/IridiumBoss
Falcon 9 Family & Random SpaceX 411:
SpaceX Falcon 9: http://www.spacex.com/falcon9
SpaceX Falcon 9 User’s Guide: http://www.spacex.com/sites/spacex/files/falcon_9_users_guide_rev_2.0.pdf
SpaceX Falcon Heavy: http://www.spacex.com/falcon-heavy
SpaceX Falcon 9 Spaceflight 101: http://spaceflight101.com/spacerockets/falcon-9-ft/
SpaceX Falcon 9 (Wiki): https://en.wikipedia.org/wiki/Falcon_9
SpaceX launches (Wiki): https://en.wikipedia.org/wiki/List_of_Falcon_9_and_Falcon_Heavy_launches
SpaceX booster landing attempts (Wiki): https://en.wikipedia.org/wiki/Falcon_9_booster_controlled-descent_and_landing_tests
Falcon 9 core (booster) serial numbers: https://www.reddit.com/r/spacex/wiki/cores
SpaceX Stats: https://spacexstats.com/
SpaceX Now: https://spacexnow.com/
SpaceX Dragon Spacecraft:
SpaceX Crew Dragon: http://www.spacex.com/crew-dragon
Dragon serial numbers: https://www.reddit.com/r/spacex/wiki/capsules
Launch Complex-39A (LC-39A):
NASA Launch Complex 39 (LC-39): https://www.nasa.gov/mission_pages/shuttle/launch/launch-complex39-toc.html
Heroicrelics Launch Complex 39 (LC-39): http://heroicrelics.org/info/lc-39/lc-39-abcd.html
Wiki Launch Complex 39 (LC-39): https://en.wikipedia.org/wiki/Kennedy_Space_Center_Launch_Complex_39
Space Launch Complex 40 (SLC-40) Cape Canaveral:
Patrick AFB: 45th Space Wing, Cape Canaveral, Florida:
Main Site: http://www.patrick.af.mil/
Peterson AFB, U.S. Air Force Space Command, Colorado: