Thank you actually. so we only moved in last week. This is this is the new operations center for Follow the Song Where we start in November where Canberra will control Gallstone and Madrid antenna during daylight hours and that will rotate so they'll control ours during the night time. So so we're going to be getting a lot more Contour so it looks nice and Airy but it will be filled in the coming weeks.

Now the teams will have teams of five. Oh, this is my desk so it's a new desk. It's a very special desk. It's A.

It has lots of screens so so essentially this also allows me to interface with our flight systems as well. So I Come From Here call up anything on the the other workstations if you if you pan around essentially each workstation here so can incorporate Uh two antenna. So we can have one one of our controllers controlling Deep Space Station 35 and 34 at the same time. So it could be Mars it could be.

You know, in the case of what we're tracking now, we're tracking on Deep Space Station 43 Voyager 2.. And so on Deep Space Station 34 we're tracking wind as well. So as the day goes on, we'll we have the Mars rising and I'll show you the schedule that we have. So this.

So this is our tracking schedule at the moment so you'll hear some noises at the back. They're just doing testing. so everything in green is essentially what's being supported now. Deep Space Station 43 is tracking Voyager 2.

There was a command Uplink as well and as we just described earlier, so we did the best lock frequency and transmitted a number of no Op commands to the spacecraft as well Wind and they were dumping as well. So Wind has two downlink channels essentially modulated on the same carrier, but they have engineering and essentially engine and scientific data so we have two receivers unlocked. We have a high rate 144 kilobits and then we have a lower rate which is just seven kilobits for the engineering. Uh 36 and 35 are on maintenance at the moment and really that sort of sets us up as the day goes on.

So if you start hitting the Mars missions Mars rise is here so actually probably in the next hour or so. but it's a little bit longer that we start picking up our first spacecraft on Mars which is Maven and Nvn and then we start mer one so Opportunity as well. So we still communicate with the Uh with with the Rover and the Rover is an unusual one so on how we communicate with it because it uses the relay spacecraft most of the time so all the vision that you see is through the Uh the relays. but but we do command directly and so what we do is we'll send a command sequence and then we listen round trip light time we we get a happy beep or a sad beep.

So at the moment this is Uh showing the Voyager 2. this is the downlink system and we have 10 downlink channels that we can use and it's A it's A. It's a resource so that we can pick for anything. So some spacecraft might need one receiver, some might need two, some possibly you might need three.

So this is, uh, what we're using here. this is download channel number three. The signal comes into the If here and this is our carry lock. We're in lock.

That's great because it's a frequency 8420 megahertz power on the carrier. a negative 159. So it's huge, so that's a big signal. It depends uh, sort of if you're looking at Maven on the low gain antenna.

and even though you look at Mars that can be 10 DB lower. So it really depends on the purpose of the spacecraft and what they're trying to get down. Voyager as it has a a great big High Gain antenna. It has a 20 watt transmitter which doesn't seem huge, but sort of it.

It seems to be ample for what we need, so the 158 is fairly good carry a residual. Now, this is not. at the moment, we're not coherent, which means that the spacecraft is using its U.S And it's an ultra stable oscillator so it's its own time reference, but even over 15 billion kilometers, we're only 183 Hertz out. It's crazy.

So so yeah. so predicted. We're pretty well bang on the one way indicates the mode so which is essentially non-coherent if we were two-way That means that the spacecraft is turning around our signal and what we're receiving is reference to our Uplink So as we raise the Uplink the downlink will rise as well. The two the two are linked and the reason why we do that is for Doppler So we know if there's a fixed ratio on the spacecraft and we're transmitting a frequency and the frequency we're receiving.

if it's not exactly right, it must be the result of Doppler And based on that, we can say okay, the spacecraft is traveling at a velocity of X meters per second signal noise temperature oh it's a hot one 19 Kelvin So that which is a really good, that's probably about the standard. We get about 17 lowest, uh, so a little bit of cloud so but not too much so 18 Kelvin If it rained now and that would just start to bang Bang bang bang bang. So so that can go all the way up to 130 and to the point where it wipes out the signal sub carrier a little 20, 22 and a half case sub carrier also stripped off, the symbols are stripped off. There you go.

We're saying we double double the symbols to get the bitrate. So with the with the encoding method it's MCD one two symbol SNR is seven 7.1 which is about the same as my ADSL modem right? So um I'm three and a half K away. Yeah, so similar to noise ratio that so we go. Okay, that's the symbols done.

So this is RF By the time we hit our Telemetry system, we're converting bits. it gets pumped into MCD which is a multi-convolutional decoder and that's the forward error correction we were using. and suddenly our simple SNR of 6.7 turns into 9.83 which is a 3 DB which is a doubling that we get without with that encoding method. Frame Sync here.

So just like any other data, so if it's packaged up and there's a frame sync word at the beginning of the packet, so what this does, it looks for that frame sync word I said. Okay, framesync word. the frame is this length of time and just chops it up into packets. and from there we have the formatter where it's sent over to JPL really.

So that's about as much as we see. As far as the Telemetry processing we know I'm have. we're having blocks leaving. This is our Spectrum display here and we're seeing a very tiny Voyager 2 signal sitting in the middle.

so what else we get from it? So obviously the Doppler that we're receiving here is being fed through as well as tracking data. And that tracking data as I said, used to Denim velocity as well, subtle changes and and when when we're talking about changes, we're talking about fractions of Hertz and that are being measured. This is our antenna here. a display.

So this is our performance display. So we know exactly where it's pointed. It gives us an Azure meth in elevation 219 and 53. Uh, so we've we go down and you know everything is Millie degrees here.

So we're not talking degrees, we're talking Milli degrees. Uh, so an infected tenths of many degrees. Uh, the accuracy. So especially when you start to an expand so it's fairly tight.

As far as the bore site, the higher the frequency you go, obviously the narrower the beam. Uh 43 is different from all the others. It's a huge antenna and if you look at it, so as far as beam width they've they've won. Edge moves off bore site by more than a couple of centimeters, then you start losing it.

So accuracy is essentially ultimate, ultimately what you want. So we have encoders that give a position. Essentially, they're they're little more than Wheels. But then this one also has an auto collimator as well, which is something quite different.

Parks has one Similar, Essentially, it's an hour angle and deck antenna within an antenna. So sitting up on the top of the instrument Tower in between the the elevation axis, there's essentially a robotic arm. It's an hour angle and deck, but instead of an antenna dish, it has a laser. So this 8 000 ton antenna is slaved to essentially a laser.

So which is another level of accuracy. Again, so so these are probably there without the most accurate antennas in on the planet. So and you know, we have dedicated Engineers purely calibrating the antenna on a regular basis to make sure it it's it's. been gone daily weekly, monthly.

so let's say the specs if it's more than uh, two or three million degrees out is chastising himself. What this does show quite effectively is this is X-band so it doesn't doesn't show the transmitter. This is our essentially our input to our receivers. It shows the horn here, what you're seeing there is is a rain blower and it sounds kind of crude so considering the hardware we have but uh with it with expand, you do have the issue with water pooling on on the cone window so there's a little blower just makes sure that that doesn't settle.

It comes in, it goes into a diplexer and what a diplexer does is simply allows us to receive and transmit at the same time. We're not using the transmit at the moment on the x-bend because this is an S-band Uplink on Voyager 2.. it comes through and then we have a fixed polarizer where essentially the combined downlink is separated to a right-hand circular polarization on a left. Voyager is left hand circular.

So that comes through and goes into our receivers and that ties in with with our receiver over here and that's where it's introduced to the receiver. Why is the power level different on there to what we're seeing on screen here? it shouldn't be. It shouldn't be. Minus 152? Yeah yeah.

I Have a feeling so it's all AGC and I Don't think I think what you're seeing there is not exactly right. So where let's just say I'd assume my systems are right that one is correct. Yes, Minus 159. Yeah, okay 152 I'll be jumping up with joy and I'd think oh my.

God it's turned around, heading back.