Monthly Archives: October 2013

GDL setup with Astronomy library (open-source IDL replacement)

sudo apt-get install gnudatalanguage edit your .bashrc, adding the line: export GDL_STARTUP=~/.gdl/gdl-startup.pro Now to say setup the Astronomy Library for GDL, download it from http://idlastro.gsfc.nasa.gov/ftp/astron.dir.tar.gz and extract to say ~/IDLtoolbox/astrolib finally let’s edit the gdl-startup.pro nano ~/.gdl/gdl-startup.pro and paste in: !PATH=!PATH+’:'+Expand_Path(‘+~/IDLtoolbox/astrolib/’) which keeps the current paths and adds all the Astronomy library subdirectories. to check […]

Google Earth 7.1 in Ubuntu 13.10

In short: If you want Google Earth on Ubuntu 13.10 64-bit, you should actually (at present) download the 32-bit version! (tested with Google Earth version 7.1.1.1888) ia32-libs is no longer available for Ubuntu 13.10 (which is what Google Earth 64-bit wants). As an aside, you can install individual 32-bit packages, typically by appending :i386 to […]

ImageJ / FIJI: saving multi-frame FITS files from stack

Note, when you have a “stack” of image data open in ImageJ / FIJI, you can save it as FITS by just doing File>save and typing myFile.fits for the filename. You see, I tried doing File>Save As>FITS, but that only saves the FIRST frame (and that’s all). This has been so for quite some time, […]

Andor Zyla 4.2 announced

http://www.andor.com/scientific-cameras/neo-and-zyla-scmos-cameras/zyla-42-scmos However–realize that currently the Zyla 4.2 is ONLY Rolling Shutter — so it may not be suitable for applications requiring Global Shutter.

Setting up GCX (Linux astrometry program)

The first step is sudo apt-get install gcx you will need the GSC ACT catalog, downloaded using wget. There are a lot of directories with lots of ~50KB files, so it will take a while even with a very fast internet connection. Maybe there is a better way to use wget to download a huge […]

Setting up Astrometry.net program

Note: if you have Ubuntu 14.04, you can simply type: sudo apt-get install astrometry.net Otherwise, or if you want the latest version, follow the steps below. If you want a nice wrapper program I wrote that plots right ascension / declination and azimuth /elevation for your image, check out: https://github.com/scienceopen/astrometry the fits2azel.py is what you […]

MATLAB GFORTRAN_1.4 not found on Ubuntu 13.10

if you’re getting error messages like: /usr/local/MATLAB/R2013a/sys/os/glnxa64/libgfortran.so.3: version `GFORTRAN_1.4′ not found (required by /usr/lib/liblapack.so.3) /usr/local/MATLAB/R2013a/sys/os/glnxa64/libgfortran.so.3: version `GFORTRAN_1.4′ not found (required by /usr/lib/libblas.so.3) try doing in Terminal (note, this is for Matlab R2013a, your Matlab directory may be slightly different) cd /usr/local/MATLAB/R2013a/sys/os/glnxa64 sudo mv libgfortran.so.3 libgfortran.so.3.bak sudo ln -s /usr/lib/x86_64-linux-gnu/libgfortran.so.3

Ubuntu 14.04 removing guest access and removing remote login

Ubuntu 14.04 and 13.10 changed the location of the necessary file from the 13.04 and earlier /etc/lightdm/lightdm.conf for Ubuntu 14.04 & 13.10, type: sudo nano /etc/lightdm/lightdm.conf.d/50-unity-greeter.conf and add the lines: allow-guest=false greeter-show-remote-login=false

Matlab R2013a / Matlab R2013b Ubuntu installation

In Terminal, cd to the DVD or download directory, and type sudo ./install Choose to do a Custom installation — otherwise matlab installer won’t create the symlinks in /usr/local/bin and you’ll have to do it yourself. To use MEX in Matlab R2013a with Ubuntu 14.04 you may need to consider install GCC 4.4.

faster download of Ubuntu 13.10 ISO

Wherever you are, you will probably get a much faster download speed of Ubuntu 13.10 in the next few days by using a mirror. For example, in the northeast United States, try: ftp://mirrors.rit.edu/ubuntu-releases/13.10/ You are probably interested in the ubuntu-13.10-desktop-amd64.iso