30 September 2008

KELT South takes it's first images !!!!

Hey to all the readers of my blog, all 2 of you :)

We had a major event tonight. We attained what we in the astronomy field call "First Light", ie the first real images from our telescope that are actually useful.

We've been having some real problems over the last few days to get the telescope operational and at one point we actually thought that it wasn't going to be working at all. So tonight is a real good night for us and I'm really excited about the whole project again. Now I can't wait for the telescope to start it's real observing and the hunt for planets :)

Here are the two most awesome images on the planet at the moment.
The first one is a picture of the centre of the Milky Way and the second one actually shows the Large and Small Magellanic Clouds (our two closest galaxies). The Milky Way was a 15 second exposure and the LMC and SMC was a 2 minute exposure.



For some really large versions of these two photos have a look at http://keltsouth.pbwiki.com/Sutherland+Deployment

Cheers

PS. I'll post another monster post some time tomorrow to fill in all the details about the last week or so. Lots of things have happened and I'll most certainly try and bore you :)

23 September 2008

KELT South Pictures

Hey

Pictures of the KELT South project can be seen here:
http://picasaweb.google.co.uk/Rudi.Kuhn.001/KELTSouthPictures

It's much easier to upload them there than try and post them on the Blog. Blogger makes it really hard to place the pictures where you want them :(

Anyway, keep checking here and I'll let you know when I've update the Web Album.

Cheers

22 September 2008

KELT South (monster) Update

Hey everyone

So, let me fill you in on what's been happening over the last week or so ...
The KELT South telescope finally arrived in Sutherland all safe and sound. It was only delayed by almost three weeks, so considering Africa time I'd say it's kinda right on schedule :) The telescope arrived on Tuesday (16 September 2008) and Josh and David were very excited. It's kinda disturbing seeing two grown men act like little kids on Christmas morning, but I suppose it's to be expected. They have spent many hours behind the scenes getting the telescope ready and testing various pieces of hardware.

Before Tuesday though, Josh and I have been coding many pieces of VBScript that we will use to automate the telescope. It's not until one starts writing the code that one realises that there are a lot more things to consider than you initially thought. So far I've been working on the Weather Script. This piece of code is probably one of the more important pieces because this code will read weather information from a couple of sources here in Sutherland and decide whether the telescope should actually open to start the observing run (and you don't want to be opening the enclosure in the middle of a thunder storm). The code is slowly coming to a point where I feel comfortable to load it on the control computer, but we will be doing many hours of testing before we leave the telescope to itself :) You can never trust that you have considered all the possibilities.

Tuesday morning/afternoon when the telescope finally arrived (at around 12pm) there was a lot of commotion as the truck that the crate was on, was slightly larger then we expected and the only place that we could actually offload the crate was at the SALT unloading dock. This meant that we roped all the SALT engineers and technical staff into helping us unload our little telescope. They must've been thinking very strange thoughts when they found out that our telescope was only a glorified camera, when they are used to working on the single largest telescope in the Southern hemisphere with equipment weighing in at many thousands of kilograms. When we finally got the crate off the large truck, we needed another vehicle to load it onto. The job was given to the trusty old Toyota One Tonner. The next big job involved offloading the crate from this vehicle and then unpacking the entire crate. This went rather well and we actually managed to dismantle the entire crate in just over an hour. There is a awesome little video of us unpacking the crate on the KELT-South Wiki (http://keltsouth.pbwiki.com/). We also had to decide where we were going to set up all the equipment and perform the initial testing of the hardware as well as our code to operate the telescope. We managed to get access to the visitors centre library and we decided to move the control computer, UPS, transformer, camera and mount into the library. By the end of the move, it was supper time and straight after supper we started planning out the rest of the week.


On Wednesday, Josh and I spent a large part of the day setting up the UPS and transformer in the library at the visitors centre. This will serve as our little lab for the next couple of days until the electrical lines have been pulled into the telescope enclosure (which we are hoping should be done by either Monday or Tuesday 22/23 September). It took us a really long time to actually figure out the entire UPS and transformer layout because the manuals that were included with these things weren’t really very explanatory. We had to ask Jaci (SAAO Electrical Engineer) and John Stoffels (Sutherland Site Manager) many questions that they probably thought were very easy, and things that every person (nevermind highly schooled astronomers) should know.


Thursday was spent finalising a lot of things with the builder and making sure that the cables and lights and doors and things were going to be fitted within a reasonable time frame. I was still working on the Weather Script and in the afternoon Josh and I started working on the Preparation Script. We also got the mount and the camera unpacked and hooked up to the UPS. The Preparation Script will execute about an hour before astronomical twilight and make sure that everything with the telescope and mount are OK. It will then take the bias frames and slew the telescope into a position where it will take the flat fields. Josh and I were also very excited to see the mount move for the first time by us issuing it a VBScript command.


Friday morning was spent adding some final touches to the Weather Script and just before lunch time we headed back to the hostel to see David off. He had to leave to make sure he got back to Hawaii before Monday when he started teaching again. I actually felt very sorry for him because he had come all this way to never see the telescope actually get installed. We promised to send him as many photos as possible and keep the Wiki site updated to ensure that he could at least track the progress. We will need his expertise over the next couple of days when we finally get the telescope into the enclosure and start testing the operations. The rest of the day was spent figuring out how the entire telescope will operate.

And that is the story so far. Hopefully I will have slightly more time to keep everyone updated on our progress, because another monster post like this one takes far too much time and effort :)

Have a good one people

11 September 2008

KELT South begins


Hey everyone

The time has arrived for us to start on the construction of the telescope. The telescope isn't here in Sutherland yet, but there are many things we need to do before it arrives. We are hoping to take delivery of the equipment on Saturday (13 September) or Sunday. Then the real fun and games are gonna begin :)

At the moment we are writing some control software for the telescope, and my main job is to get the weather information from all the weather stations up on the hill and make sure the telescope observes when it should and close the roof when it should. Trying to figure out VBScript in the process as well. The learning curve is very steep, but I didn't expect anything less.

The men responsible for the KELT telescope, Joshua Pepper (from Vanderbilt University) and David James (from The University of Hawaii), are here in Sutherland as well. David will be responsible for the flat field screen and imaging and making sure the telescope performs as expected. Josh and I are responsible for everything else. And the "everything else" is a fairly long list to say the least. The photo above shows David on the left and Josh on the right trying to figure out how to use the camcorder they brought along to document the telescope construction. There is also some snow in the background (again). David was busy applying primer to the hardboard we will use to construct the flat field screen.

You can follow the progress and access some more technical details here: http://keltsouth.pbwiki.com/

Hope all is well
Cheers

31 August 2008

SNOW !!!

Hey peeps

It's snowing !!!! It's been snowing for the last day or so as well. It started snowing at around 23:00 last night (30 August) and it continued to snow the entire night. I was so excited I didn't sleep much (I only went to be at around 4 this morning and woke up just after 9 again, I didn't want to miss out on the snow you see). It's been really cold too. If you have a look at the first two images below you will see that the temperature graphs for the night before and during the entire day today never went above 0 degrees. The wind has also been blowing the entire time at around 100 km/h. I've tried to take some photos of the snow, but they mostly turn out just white and the features I tried to photograph don't show up :( But, it's still snowing outside and when you walk outside there are some places where the snow in almost chest hight !!!

Enjoy the pics, and I hope you are all keeping fairly warm ...




29 August 2008

Sutherland in photos






These are just some of the recent photos of Sutherland. I'll be adding many more of the next couple of days (seeing as it's cloudy again).

Adios

28 August 2008

The Telescope Story Begins ...


Hey everyone

As expected, the dome of the telescope arrived on Monday and most of the day was spent setting up everything so that it could be completed the following day. The only thing was that it started snowing on Monday as well. And to make things even more difficult, the wind was well over 60 km/h. This made for a very cold combination. I was mostly standing around taking photos of the guys working on the rails for the roof to run on and every time I took my hands out of my pockets to take a photo, they would instantly freeze. Luckily the guys that were working had brought some gloves and warm clothing (they were warned before they arrived I suspect). So by Monday evening everything was in place to lift the roof onto the enclosure by Tuesday afternoon.

Tuesday (26 August) turned out to be a very pleasant day. The temperatures started at around -4 degrees C by sunrise but by mid afternoon it was close to 10 degrees C. There was no wind to speak of (which is highly unusual for Sutherland) and not a single cloud in the sky, and this meant that the roof could be lifted without any troubles. The roof was finally lifted onto it's rails just before 5pm that evening and it seemed very anti-climactic. I though it was going to be a big struggle and a fight with the rails and the alignment of the wheels, but it turns out that all the hard work and preparation the day before meant that all ran very smoothly. To see the dome finally in it's position was something really exciting. I can now see exactly what the telescope is going to look like and I'm very excited to start working on the project.

Wednesday (27 August) saw the guys from "Windeul Ingenieurswerke" doing the final finishing touches on the roof. The motor to control the opening and closing of the dome was installed, the edges were rounded nicely, insulation added and rubbers fitted. All in all I was very impressed by the guys and their attention to detail on the project. They definately made sure that we were completely satisfeid with the final product.

Throughout the whole process I was taking many photos, almost 250 in 3 days :)
Attached is one that shows one of the pillars being lifted into place. The white streaks in the background is the snow I was talking about.

Cheers

23 August 2008

Kwêla comes to visit


Hey everyone

I got some awesome news. I might be on TV !!! A film crew from the TV show Kwêla (on KykNet) was doing a short piece on what happens in Sutherland, and since I'm the only astronomer/astronomy student up here at the moment that speaks Afrikaans, they came to visit me in the 1.0m dome last night. I had a full interview with Lise Swart and I'm very excited about the possiblity of being on TV :)

The picture attached is the little message that Lise left just before they headed back down the mountain. I'll try and find out exactly when the the piece will be shown on TV and you can be sure that I'll be posting that information on here too.

Oh, as far as observing is going this week, not good at all. I've been here for 4 nights now and not a single one has been usefull. The weather forcasts aren't looking good either, some even predict snow for Wednesday next week.

Cheerio

20 August 2008

Sutherland (again)?

Hey people

I find myself in Sutherland again. This time I'm doing absolutely nothing to do with exoplanets though. I'm helping my thesis supervisor and one of his collaborators by observing some objects that we need to find very accurate positions and velocities for. This project was initiated by NASA and we will be helping the Hubble Space Telescope to update its pointing software. Unfortunately it looks like the weather isn't playing along. It looks like a cold front is on the way and we even have rain predicted for the next couple of days.

Aside from this, the enclosure for the KELT South telescope seems to be coming along nicely. The man responsible for it all is here in Sutherland at the moment with me and he is hopeful that the dome of the little building will be installed on Monday (25 August). I'll be taking lots of photos and will post some here soon.

Bye bye

31 July 2008

Bad News


I got an email from the people in USA saying that the telescope that we will be building in Sutherland has been delayed by a week (and so it starts). This means that we will only start on the project in September and not at the end of August as we had hoped.

This prompted my supervisor here in South Africa to "design" a backup plan in case the telescope will not be completed by the time I need to hand in my thesis next year. This "backup" plan/project will run concurrently with the telescope deployment, which means for the first six months of my M.Sc degree I will be doing twice as much work as I should. This will ensure that I will at least have one thesis ready to hand in by the middle of next year.

It's going to be a tough time for me ....

30 July 2008

No work and all play ....

Last night turned out to be quite serious, the wind was gusting up to 120 km/h last night. The people that live here on site told us that this is the worst wind they have ever experienced. All this meant that I didn't get to open the telescope dome again and so lost an entire night of observing :(

I'm on my way back to Cape Town now. It's been a really good week. I didn't get as much work done as I would have liked, but at least I'm feeling like I've had a small little holiday.

See you soon

29 July 2008

The Last (K)Night

It's my last night up here tonight and I'm actually sad to be going home tomorrow. The night started out kinda nice. The wind was blowing slightly (at around 30 km/h or so), but soon turned ugly. At the moment the wind is howling outside at around 80 km/h again, and it's only 1 hour since I started :( At least I got some good data for the start of the night. I'm going to stay in the dome for the moment, the wind might die down again and I need to take a couple more data points at the end of the night. The entire dome is vibrating in the wind. It's kinda scary, I still have to srive down the mountain too. :(

Anyway, I'll keep you informed.

28 July 2008

Snow?


Nope, none, nada. It was cold enough for snow, it got down to -2 degrees last night, but it didn't snow :( Unfortunately I wasn't in the cold. I was sitting watching the clouds and mist all night from the comforts of the Hostel Library.

Tonight looks like the best night to observe since I've been here. There is absolutely no wind and the atmosphere looks really stable. The stars outside are brilliantly bright and they are not even twinkling :) This is good news for astronomers. The less twinkling the less turbulent the atmosphere and the better the image quality. Not that I'm actually taking images of the stars, but some of the other people on the hilltop are. All I'm doing is "catching" and "counting" the number of photons from a particular star.

Anyway, it's back to work for me. I'll post some more stuff tomorrow :)

27 July 2008

Bad Nights


I think I spoke to loudly and the universe heard me. Last night was no good for observing, we had scattered clouds all over the place and watching your target star disappear before your eyes makes astronomy a very hard thing to do. Tonight is even worse. At the moment of writing this entry the temperature outside is about 4 degrees and the clouds have really decided to roll in. I'm actually hoping for some snow, but the locals are telling me that it is still far to warm for snow. It will rain, and we might even get some sleet, but it's still too humid for snow :(

So tonight I will be spending most of my time playing around on my computer. Some "administration" on the file system is what's needed.

I'll keep you informed on the snow question. Stay warm people, cause it sure ain't warm here :)

PS. The attached photo is my attempt at HDR. Let me know what you think.

26 July 2008

Good Nights


The last two nights were actually pretty good. The astronomers that have been up here in Sutherland for the last 2 weeks have confirmed that this has been the longest run of good nights so far, so I guess I arrived at exactly the right time :)

The picture on the side of this blog shows the weather output from SALT. There you can see that the whole of last night was at around 7 degrees, nice and toasty :) And don't think the "warm room" inside the telescope dome is actually warm. It's one of those obscure astronomer jokes.

I took a trip down to the new Recreation Center that was completed recently and I must say that it is pretty awesome. There's a climbing wall, basketball court, indoor braai with pooltable and big screen tv, fully stocked gym, and a squash court !! In Sutherland !! That's cool. I'll upload the photos to my facebook profile soon (or see if I might be able to post them here some time).

Adios

24 July 2008

Observing Time


So the wind died down just enough for me to be able to do some work last night. I managed to get some good data (I think, we'll have to see once it is reduced). I did have to stop slightly early though because the wind started to blow again at some strength. When I closed up the dome the wind was gusting at around 80 km/h and when I finally managed to pack up all my stuff the wind was around 100 km/h. And let me tell you that driving a small little Palio in that kind of wind was scary enough ...

Tonight looks much better for observing, little wind and it's going to be very cold. It's already 8 degrees (Celsius) and it's only 20:00 !! But I'm looking forward to it. Bring on the cold, I've got my jacket and beanie.

Stay cool peeps

22 July 2008

Sutherland Again

So I'm back in Sutherland, not working on the project I told you about in the last post. I'm actually doing some observations for people at the Max Planck Institute for Astronomy in Germany at the moment. I'm following up on a possible planet candidate around a very young star.

It's the first night here and the wind is blowing at around 80 km/h at the moment which means that I can't actually do some observing tonight. But the weather forecast looks good and hopefully I'll get some observing done tomorrow night.

18 July 2008

First Post


Hey everyone

This is the first post in a line of many (I hope). Over the next few weeks and months I will be sharing all the joys (and pains) of setting up a robotic telescope in Sutherland, South Africa (possibly the coldest place in the entire country, and I dare say entire African continent).

Chat again soon