Credit: NASA
SpaceX is planning to launch Falcon 9 and the Northrup-Grumman CRS-2 mission towards low Earth orbit and the International Space Station this evening. Shortly afterward, the Space Coast will hear a sonic boom as the booster returns to land at Cape Canaveral.
Launch time is scheduled for 6:11:48 PM ET in an instantaneous window. As is standard for most launches to Station, should weather or technical reasons prevent a launch at the time, SpaceX will be forced to stand down and wait for the next window tomorrow.
Payload
Tonight’s mission will be the Cygnus XL variant of Northrup-Gruman’s cargo delivery spacecraft. The XL is a “stretched” version that offers significantly more cargo volume and payload mass compared to earlier Cygnus versions. Specifically, it increases the cargo-carrying capacity by approximately 1,250 kg (roughly 33%) over the baseline, bringing its total payload capacity to around 5,000 kg (11,000 pounds) of pressurized cargo.
Among the research payloads are experiments for growing semiconductor crystals in microgravity, tools to refine technologies for cryogenic fuel tanks (which are critical for future space missions), and a UV light system designed to limit microbial growth in the station’s water systems. Also aboard are supplies for pharmaceutical crystal development with implications for cancer and other disease treatments. No ice cream this time, we checked and did not see it mentioned in NASA’s manifest.
Weather
Compared to other missions of late, the Launch Mission Execution Forecast from the 45th Weather Squadron of Space Launch Delta 45 is almost optimistic: 75% GO at launch time.
Trajectory
Northeast on the well-worn path to ISS:
Streaming Options
NASA will livestream the launch on NASA-TV. Coverage starts about 20-30 minutes before liftoff.
Spaceflight Now will have coverage of the launch starting about one hour before liftoff on Youtube: link
Please note that there is a delay between the launch stream and the actual countdown clock if you are watching in person. That is simply because of physics: it takes time for the signal to travel from the launch site, through the Internet, and back down to your phone, resulting in a five to fifteen-second delay.
For official updates regarding launch times, SpaceX.com is the best source of information. Starlink launch times change from time to time, and the company generally updates their website within minutes of the decision to change the launch time. This is very handy if none of the streaming options on YouTube have started their broadcasts.
Next Space Flight an app for iOS and Android phones, has a real-time countdown clock that is accurate to a second, give or take. The app is free. Search the App Store or Google Play. They are also available online at nextspaceflight.com.
Photo: Charles Boyer
Launch Viewing: In Person
Since the launch is during the early evening, a lot of options are available for spectators: Jetty Park, the Banana River Bridge on FL 528 W or the southern Titusville parks on Washington Avenue / US-1 are your best bets. Jetty Park will have the best view of the booster return, but not as spectacular a view of liftoff. On the other hand, Titusville parks will have the opposite: a great view of liftoff but not as close as Jetty Park for the landing.
Playalinda Beach is several miles north of the launch pad, but ignition and of course the flight of the rocket and its return are visible from that location. If you go, go early in case the crowds are heavy.
Other options include The Space Bar, a rooftop bar at the Courtyard By Marriott in Titusville. It offers great views of the launches and a full bar and menu. Other options include New York, New York on the Indian River in Titusville, but if you want to grab a bite, go early, because their kitchen usually closes for the day around 6:30 PM.
Photo: Charles Boyer