The weather is 70% favorable for the launch of NASA SLS for Artemis I.

We are almost there! On Monday 29 August at 14:33 (for Italy) the two-hour launch window will open large space rocket NASA SLS for the Artemis I mission. After years of delays and increased costs, we will be able to see the first launch of the Space Launch System in the direction of moon. Sure, it is “alone” of an unmanned preparatory mission, but it will still be a key moment for space exploration. There NASAfor the occasion, will broadcast the launch in 4K.

If the Artemis program will be successful, our natural satellite will be a springboard in the direction of the greatest leap to Mars. But first it will be necessary to have technologies and knowledge capable of supporting humans in long-lasting missions that are not in low earth orbit. And before going a few tens of millions of km from Earth, it will be necessary to understand how to prepare long-term missions a few hundred thousand km from our planet.

NASA SLS and Artemis I are almost ready for launch, favorable weather

In addition to the purely technical issues, there is also the variable of weather forecast for the launch of the great space rocket from Florida. As announced in the past few hours through the official bulletin of the US Space Force Space Launch Delta 45, the weather conditions are 70% favorable for the launch of NASA SLS and of Orion capsule for the Artemis I mission. The engineers working on Launch Pad 39B have withdrawn the arm intended for the crew and closed the hatch of the launch abort system.

In the’last note officially released (which will be updated in the next few hours) you can read that “An unstable weather pattern will continue throughout Central Florida until Saturday [ndr. oggi] such as the faint depression in the north which maintains the predominant south-south-west flow. This will favor stormy afternoons and evenings as the collision of the sea breeze favors the east coast. As usual, showers and thunderstorms will subside during the night. Sunday is expected to return the flow to the south-southeast, which should decrease the coverage of downpours and thunderstorms along the Space Coast. This flow regime will remain in effect for the opening of the initial launch window on Monday morning. Although the overall lightning threat appears low, this ground flow regime will promote the dispersal of downpours across the Atlantic waters in the launch window. As a result, the primary weather concerns for Monday’s morning attempt will be the Cumulus Cloud Rule [ndr. una regola prevista nelle linee guida NASA]the rule of surface electric fields and the rule of flight through precipitation “.

The guidelines for launching NASA SLS (for Artemis I and subsequent missions) are available on the space agency website. It must be considered that some concern the arrival of the rocket at the launch pad, an operation already completed in the past few days. Therefore, only the variables for the actual launch will have to be taken into account.

The loading of the propellant will not take place if the average temperatures in the previous 24 hours are below 5.2 ° C. It will not be possible to launch if the temperatures exceed 34.5 ° C for 30 consecutive minutes at 40 meters and 80 meters above sea level. The wind must not exceed 29 knots and 39 knots respectively at 40 meters and 80 meters. In addition, winds at high altitudes could also be a problem for launching. Furthermore, if it rains, the launch will be postponed. Lightning and clouds are also a problem. In general, the weather conditions should be good within a radius of 10 nautical miles. Finally, it will not be possible to launch if there is a particularly intense solar activity in progress.

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