ZY-3 Satellite High Resolution Stereo Image

ISPRS test data Ziyuan-3-01    2017

Data Sets Region Stuttgart

Since its launch on 9th, January 2012, China’s first civilian high resolution stereo mapping satellite ZY-3 has provided a reliable stream of high resolution stereo image data. ZY-3 produces three line-array stereo panchromatic images (2.1-meter for nadir,3.5-meter for forward and backward) and 5.8-meter multispectral (red, blue, green, near infrared) imagery that can be combined in a variety of ways to accommodate a wide range of high-resolution imagery applications.

View more info on SASMAC (Satellite surveying and mapping application center, NASG). And the website is http://www.sasmac.cn/portal_space/ (In English)


1. Frames in Google Earth

Image Description
Extend: E 8.31°  N 48.17°   to    E 9.97°  N 49.17°
Captured: Pforzheim: June 24th 2014
Stuttgart and Reutlingen: October 28th 2012
Schorndorf and BadUrach: December 01st 2012


Image Description
center: ˜ N 48.83°  E 9.27°


Image Description
center: ˜ N 48.46°  E 9.11°


Image Description
center: ˜ N 48.86°  E 9.53°


Image Description
Bad Urach
center: ˜ N 48.44°  E 9.40°


Image Description
center: ˜ N 48.85°  E 8.77°

2. Ziyuan-3 overview images

Image Description


Image Description


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Image Description
Bad Urach


Image Description


3. Files

The files of the different scenes can be identified by the last digits before file extension  e.g. the scene of file

ZY3_01a_hsnbavp_275102_20121201_183107_0008_SASMAC_CHN_sec_rel_001_12120422639.tif can be identified by 2639 within the available data set

Technical data of the images are available in the *.XML-files (ASCII) as corner coordinates, view direction, sun elevation and azimuth, imaging time . . .

                                          width    height    (columns    lines)
bwd = backward, pan        3.5m GSD   24513 x ~19997 pixels fwd = forward, pan            3.5m GSD   24513 x ~19996 pixels mux = nadir, color, 4 bands  5.1m GSD  8820 x ~8786 pixels   (blue, green, red, NIR) nad = nadir, pan              2.1m GSD   24513 x ~23996 pixels


for any image usually 8 files are available as:

Image Description

3.1. Stuttgart

 1155  bwd
 1031  mux
 1204  fwd
 1091  nad

Stuttgart dataset as rar package (˜ 1.5 GB)


3.2. Reutlingen

 1156  bwd
 1032  mux
 1205  fwd
 1092  nad

Reutlingen dataset as rar package (˜ 1.5 GB)


3.3. Schorndorf

 2639  bwd
 2577  mux
 2461  fwd
 2522  nad

Schorndorf dataset as rar package (˜ 1.4 GB)


3.4. Bad Urach

 2640  bwd
 2578  mux
 2462  fwd
 2523  nad

Bad Urach dataset as rar package (˜ 1.4 GB)


3.5. Pforzheim

 7533  bwd
 7734  mux
 7662  fwd
 7598  nad

Pforzheim dataset as rar package (˜ 1.3 GB)



© Sasmac image


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