Latest News : 03/20/2010 - MK all-sky camera is operating normally
Latest Images and Data
Latest Image (no annotation and annotated)
Click on images for larger versions that also updated once per minute. Click on larger versions to return to this page.
Latest Difference (raw and hist. equalized)
Latest Statistics (full-day, median and rms)
Latest Statistics (last few hours, median and rms)
Latest Movie
Archived Data
Archived Movies (Day from March 1 2009)
| <= January 2012 => | ||||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| 29 | 30 | 31 | ||||
The day movie for a specific day will not be available until after sunset on that day.
Archived Movies (Night from March 1 2009)
| <= January 2012 => | ||||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| 29 | 30 | 31 | ||||
The night movie for a specific day will not be available until after sunrise on the following day.
Movie File Format
The archived movies are AVI files in DivX/MPEG4 format. They can be viewed using mplayer, xine, or vlc on Linux and other Unix-like operating systems. They are, however, not supported out-of-the-box by Windows Media Player or Apple's Quicktime player. DivX players and plugins for Windows 98/ME/2k/XP and Macintosh OS X can be downloaded from www.divx.com.
Utility program:
as-overlay.pl
The utility program as-overlay.pl is a
Perl script which may be used to overlay a telescope's
information on a retrieved image
Prerequisites
Installation
No installation is necessary. Just download
as-overlay.pl (below).
Make sure that Perl and GraphicsMagick are in
your path.
Usage
perl as-overlay.pl IMAGE OUTPUT ALT AZ
ALT: Telescope altitudeAZ: Telescope azimuthIMAGE: Image file.OUTPUT: Output image file, with overlay.
Source code
Simple example
Your telescope currently has an altitude of 45.0 degrees and an
azimuth of 90.0 degrees. You have fetched an image and stored it in
latest_image.jpg. You want your output sent to the file
overlay.jpg.
perl as-overlay.pl latest_image.jpg overlay.jpg 45.0 90.0
Detailed Example
Prerequisites for detailed example
- Linux, Unix, OS X, Cygwin (Windows), or a Unix-like operating system.
- A standard shell, such as
sh,bash,csh, ortcsh. wget- Two programs, which print the current altitude and azimuth of
your telescope. For this example, these programs will be called
telinfo-altandtelinfo-az. as-overlay.plPerlGraphicsMagick
Detailed-example code
rm -f latest_image.jpg overlay.jpg wget http://uh22data2.ifa.hawaii.edu/data/public/allsky/data/latest_image.jpg perl as-overlay.pl latest_image.jpg overlay.jpg `telinfo-alt` `telinfo-az`
Additional web sites using the Mauna Kea All-Sky Camera Images
Below is a list of other uses of the images taken with the Mauna Kea all-sky camera.
Acknowledgments
This system is based on the system which was developed at MMT Observatory. For more details, see http://skycam.mmto.arizona.edu/.
We wish to express our sincere thanks to Tim Pickering (MMT) for giving us access to his all-sky camera software and for assistance in the setup of this important resource on Mauna Kea and Mauna Loa.
