, five, four, three, two one: we have engine ignition main engine start and we have this soft up and Carry for ng 15 emissions of all flight facilities. Engines are at 100 percent attitude. Support pressures and equal substances are nominal. The ss katherine johnson takes flight on this. The 59th anniversary of john glenn’s mercury flight carrying 8 000 pounds of cargo to the international space station. Good performance on the first stage so far engines at 100 percent, also nominal stage, one continues nominal performance inches at 100 percent, good good, core pressures. Music engines remain steady attitude, normal max q, headed to nominal first stage, passing through the area of maximum dynamic pressure on the rocket 90 seconds into the flight. This first stage burns for a little over three minutes. Three minutes 18 seconds until main engine cut off about 90 seconds to stage one burnout attitude nominal engines at 100 and steady Music, t plus two minutes. All subsystems continue in nominal performance. Also, some sub systems are nominal we’ll, be ready to shift down to uh 80. On the engines at 170. start of slow throttle down throttling down at three minutes into the flight main engine cutoff coming soon throttle down to 55 percent main engine cutoff. We have mikko and terry’s entering into a co stage. Fairing separation will occur about 30 seconds later. As we lose side of the vehicle now, switching to animation, some controlled firings uh on the inter stage of the rocket attitude nominal good separation, 20 seconds to stage two ignition all subsystems, nominal fairing separation, enter stage separation, confirm fairing separation and interstage stage 2 ignition stage.

2 ignition confirmed stage 2 is a solid rocket motor burns for about 2 minutes 44 seconds stage. Two will continue to burn for another approximately two minutes: altitude: 138 kilometers uh mission time 300 seconds, velocity 4.8 kilometers per second altitude, 150 kilometers. All systems continue to perform nominally good calls 5 minutes 15 seconds into today’s flight hd motor pressure, nominal attitude, nominal altitude is 170 kilometers, roughly one minute to stage two burnout. All stage 2 and gnc parameters continue to be nominal six minutes 15 seconds into the flight. Uh coming up on stage two burn out of that solid rocket motor that’ll initiate a two minute coast period until uh second stage separation stage, two starting to tail off roughly 15 seconds to burn out stage 2 burnout attitude, nominal stage, two burnout, good attitude: uh we’ll, Er we’re in a coast period now cygnus exposed after that uh fairing separation and will continue to carry the second stage with it. Until about nine minutes into the flight attitude attitude, nominal expected attitude, control system, thruster firings received continuing on course, roughly one minute to payload separation, altitude, 185 kilometers velocity 7.5 kilometers per second. All systems continue to operate as expected, approximately 30 seconds to spacecraft separation attitude. Nominal systems continue to perform as expected attitude, corrections uh, maintaining expectations lcgso. I just released red team to the past copy that spacecraft separation confirmed nine minutes into today’s. Flight cygnus has separated from the second stage lc ace.

That concludes our call outs copy that ace okay, uh, ng, 15 excellent job. Today, let’s go ahead and wrap up through this post, launch checklist, um and prop one uh uh. Can you report on status of the pulse, purging, pulse purging has just started copy that we’ll check 4 30. and gnc 1lc. When you have the antarctic state factor to the cygnus poc email confirmed, give me a call back on step 431 copy and work from the wallops range control center in wallops island virginia some celebratory fist bumps as they successfully delivered cygnus into orbit a nine minute flight. On top of antares from virginia space’s, uh mid atlantic regional spaceport uh into orbit cygnus now flying free, the ss katherine johnson in flight will make its uh one and a half day. Uh journey uh, just a little shy of two days to the international space station. Arriving in the wee hours uh early morning on monday february, 22nd, harmony rotated arm enable indication no longer illuminated copy that option uh and also disable your local launch enable button ops, one launch enable removed engine flight controllers in dulles, virginia northrop grumman’s mission operation center will Take control of the cygnus and monitor its approach to the international space station over the next couple of days. Uh solar array, deployment coming in a couple of hours will uh be breaking before that, and we’ll provide a confirmation of that, via our blog and social media.

Before we depart with you today for our coverage of the launch of northrop grumman’s, crs 15 mission to the international space station we’re, bringing on uh deputy manager of the international space station program, kenny todd on with us to provide some remarks kenny. Thank you for joining us today, hey gary good good morning, good to be with you kenny. This launch comes ahead of a crew rotation and, of course, in the near term, some evas from the perspective of the international space station program. What is the significance of this mission? Uh crs 15? Well, uh gary. I mean this uh. This particular mission, uh um has um about eight thousand pounds of of cargo coming to the space station and uh. You know roughly a third of it is going to be dedicated uh directly to utilize utilization and science on board on board the station and so again that’s our that’s, our bread and butter that’s that’s. What we’re up there to do is really really do the utilization and science that uh that our commercial customers need the things that we need to learn in order to go further into our solar system. Our human research and so we’ve we’ve got a lot of this flight that’s dedicated uh to to that kind of activity. Uh. In addition to that, we’ve uh we’ve got a little over a third of it. That’S dedicated just to basic vehicle systems, maintenance hardware and some new, some new technology that we’re bringing on board so again as we as we look to go further further away from low earth orbit um.

The thing that we have to do is continue to learn. Um. You know about the systems that we’re going to need and and the iss provides a great platform for that. So we are launching some some new hardware in the vehicle systems area that allow us to to uh, demonstrate some of this technology and ensure that it’ll be be there for us when we need it in the future. But then, as always, these cygnus flights are very important to us because they bring up a lot of crew supplies as well. They are a workhorse when it comes to to to making sure that we keep our crews sustained on orbit with with the different consumables that they need so again. A very important flight for us and we’re glad to see it off the ground and on the way to station off the ground and on the way to station on time kenny. This is coming uh right on the heels of texas having some severe winter weather. Now, how were international space station operations on the day that it arrives? We’Ve got some some key science objectives that we want to get going in that first couple of days, um, so so the first two or three days after it gets there will will be heavily and intensely focused on on the science that we need to get up And running um, then, shortly after that, merely you know, four or five days after that, we’ll be heavy into doing a set of eba, preps uh we’re uh.

At this point planning on on going out to do an eva in the in the um, you know possibly as early as next weekend, uh we we’ve got a double double eda, planned, um and so uh we’ll we’ll get busy on that. As quick as we get, the cygnus uh let’s get the science up and going that came up in cygnus and then we’ll we’ll be on on to doing evas a lot coming up here in the near term. Kenny todd. Thank you so much for joining us here.