The winner of this contest was Mark Lucas of Melbourne Beach,
Florida! He receives a JPL
T-shirt! Take a look at his entry.
Of all the imaging radars that have been or are in orbit about the
Earth, SIR-C/X-SAR is the only one that is multi-frequency and
multi-polarization. This added capability is comparable to the advance
from black and white to color pictures. With these different channels
of data, we may create color radar images. For instance, here is how we created a color image of the
With this in mind, we thought we would have a Contest! The object of
the contest is to make on your own computer the most interesting color image
of Sunbury Pennsylvania. Of course, we provide the black and white GIF images
of different channels
of the radar data.
A press release image
of Sunbury Pennsylvania has been released. Here is the
Grand Prize Winner gets a JPL T-Shirt and a SIR-C Education CD-ROM!
Honorable Mention gets a SIR-C Education CD-ROM!
Grand Prize Winner and Honorable Mention will get their images posted
to the Imaging Radar Home Page also.
The object of
the contest is to make on your own computer the most interesting color
of Sunbury Pennsylvania. If you have other (not copyrighted) materials at your disposal,
you may incorporate this information into the image. For instance,
if you know the area, you could label the features in the image.
- Nothing obscene
- You may use any software at your disposal to manipulate the
- You must tell us how you manipulated the image
- You may use other non-copyrighted materials
- You must use at least one channel of radar data
- Image must be in either the GIF or JPEG format
- Image must be smaller than 1 Mbyte
- adding text, etc., is ok
- No more than 3 images per person may be submitted
- Anyone can play, including JPL employees, but excluding staff in the
Radar Science and Engineering Section
- If you give me ALL THE NECESSARY FILES, you can make a clickable
We will judge the images using the following criteria :
- Image highlights interesting features
- Pleasing to the eye
- Indicates real features on the ground
- all decisions will be final by our panel of judges!
Here are the input images :
The raw images are 8 bit, 500 pixels by 500 pixels
Additional Information :
The band is the wavelength of the radar :
- L-band is 21 cm
- C-band is 5.6 cm
- X-band is 3 cm
The polarization refers to the polarization of the radar on transmit
and receive :
- HH is horizontal transmit and receive
- HV is horizontal transmit and vertical receive
- VV is vertical transmit and receive
The ground pixel spacing is 50 meters.
The coordinates of the center of the image is :
40 deg 51.3 min N
76 deg 47.5 min W
Other Information :
- This data is in the ground range projection. In order to put the
data into this projection (ie. a map projection) a cubic spline
interpolation was performed on the original scattering matrix data in
the slant range projection
- This data was obtained on October 6, 1994 at a GMT of 17h 14m 14s
- The center incidence angle is about 38.6 degrees and was left
(North) looking from the shuttle relative to the track direction.
- The shuttle was at a heading of 138 degrees East
of North during a descending orbit
How to play :
- download the 7 images above
- Make your gif or jpeg image
- send me an email (firstname.lastname@example.org), and I will reply with instructions for getting the
image to me.
- Contest ends June 30, 1995
Here is one I made in 5 minutes with Adobe Photoshop on my
I downloaded the gifs and merged three of the channels, assigning
the red to chh, the blue to lhh, and the green to lhv : (click here to see how I did it)
Imaging Radar Home Page
Updated April 7,1995