A Falcon 9 rocket remains poised to carry satellites for South Korea and Ireland into orbit this week from Vandenberg Space Force Base in another daytime launch and landing. 

Liftoff of the rocket built by SpaceX reportedly could occur between 10:04 a.m. and 11:18 a.m. Friday from Space Launch Complex-4 on South Base, according to notices released ahead of the mission. 

On Thursday, SpaceX said the rocket would aim for a 10:19 a.m. liftoff.

The mission once had been planned for Wednesday morning, but was delayed at least two days. 

Rocket launch delays can occur due to unfavorable weather, technical troubles or the team falling behind in finishing chores. 

For this mission, SpaceX reportedly will return the first-stage booster to touch down at a Vandenberg, likely sparking sonic booms for Santa Barbara, Ventura and San Luis Obispo counties. 

This will the 17th flight for the first-stage booster, according to SpaceX.

In total, the mission will deliver 25 spacecraft including South Korea’s 425 spacecraft.

South Korean leaders announced earlier this month they would send their first reconnaissance satellite into orbit aboard a Falcon 9 rocket, the first of five planned for the nation through 2025, according to The Korea Times.

The South Korean spacecraft’s mission will occur approximately a week after North Korea launched its own spy satellite.

But the Falcon rocket will carry a secondary cargo — Ireland’s first-ever spacecraft known as Educational Irish Research Satellite 1 or EIRSAT-1.

The satellite — designed, built, and tested at University College Dublin — left Ireland in early November en route to Vandenberg for the first leg of its trek into space. 

A cube satellite, EIRSAT-1 falls under the European Space Agency’s “Fly Your Satellite” initiative, which offers university students the training, space-expert mentoring and hands-on guidance to design, build, test, launch and operate a satellite. The launch will follow years of effort to get the craft off the ground.

The EIRSAT-1 program’s motto plays off the Irish proverb, “Níl aon satailít mar do shatailít féin! “ or, “There’s no satellite like your own satellite!” 

“Ireland has never had a satellite before and we are tremendously excited to reach this delivery milestone which is a tribute to the hard work of the team, and the support of the university, the Irish government and Irish industry,” said Professor Lorraine Hanlon, director of EIRSAT-1 and the UCD Centre for Space Research. 

An educational research satellite, EIRSAT-1’s six-year development has provided training for students in all aspects of satellite development.

EIRSAT-1 will carry three experiments with one to detect gamma rays and others testing a novel attitude control system as well as in-orbit demonstration of a protective coating technology developed in Ireland.

“This departure of the satellite from Irish shores for the last time on the first step of its journey to orbit is a big moment for the team,” said Dr. Ronan Wall, manager of the Centre for Space Research. “EIRSAT-1 has had thousands of hours of work poured into it and we are ready to launch and operate the spacecraft for the benefit of science, training, and education in Ireland.”

EIRSAT representatives said a webcast will begin at 9:45 a.m. Friday, available here.

A live webcast of the mission will start 15 minutes before liftoff on the SpaceX account on the website formerly known as Twitter.