# RADARSAT Products

RADARSAT uses Synthetic Aperture Radar (SAR), an active microwave sensor, allowing 24 hour data collection independent of weather conditions and illumination. The SAR sensor has selective viewing angles that allow a wide range of terrain conditions, applications and ground coverage requirements to be accommodated.Imaging modes for RADARSAT include Fine, Standard, Wide, ScanSAR (narrow and wide), and Extended Beam (high and low incidence angles).

### Beam Characteristics

Beam Mode | Beam Position | Incidence Angle Range (deg) | Resolution (m) Range x Azimuth | Nominal Area (km)
Fine | F1N F1 F1F F2N F2
F2F
F3N
F3
F3F
F4N
F4
F4F
F5N
F5
F5F
36.4-39.5
36.8-39.9
37.2-40.3
38.9-41.8
39.3-42.1
39.5-42.5
41.1-43.7
41.5-44.0
41.8-44.3
43.2-45.5
43.5-45.8
43.8-46.1
45.0-47.3
45.3-47.5
45.6-47.8
9.1 x 8.4
8.7 x 8.4
8.4 x 8.4
8.1 x 8.4
7.8 x 8.4
50 X 50
Standard | S1 S2 S3 S4 S5
S6
S7
19.4-26.8
24.1-30.9
31.0-37.0
33.6-39.4
36.4-41.9
41.7-46.5
44.7-49.2
26.0x27.0
22.0x27.0
27.6x27.0
25.7x27.0
24.2x27.0
22.1x27.0
20.1x27.0
110 X 100
Wide | W1 W2 W3 | 19.3-30.2 30.1-38.9 38.9-45.1 | 35.5x27.0 26.0x27.0 22.8x27.0 | 165 x 165 150x150 130x130
ScanSAR Narrow | sN1 sN2 | 19.3-38.9 30.1-46.5 | 50 (approximate) | 300 x 300
ScanSAR Wide | sW1 sW2 | 19.3-49.2 19.3-46.5 | 100 (approximate) | 510 x 500 470 x 500
Extended Low | L1 | 10.4-22.0 | 36.3x27.0 | 169 x 170
Extended High | H1 H2 H3 H4 H5
H6
49.0-52.4
50.0-53.5
51.2-54.6
54.4-57.1
55.5-58.2
56.9-59.4
19.8x27.0
19.4x27.0
19.1x27.0
18.5x27.0
18.2x27.0
18.0x27.0
85 x 75
Note: The numbers shown in this table are approximations.

### RADARSAT Processing Levels

- Signal Data (RAW)
- Signal Data cannot be viewed as an image. It is an unprocessed matrix of time delays that has been repackaged to fit into standard CEOS format. Clients will require SAR processing capabilities to use Signal Data. All beam mdoes can provide Signal Data.

- Path Image (SGF) - Path Image products are recommended for individuals and organisations experienced in image processing. Path Image product is aligned parallel to the satellite's orbit path. Latitude and longitude positional information has been added to represent the first, mid, and last pixel positions of each line of data. Data from all beam modes can be processed to this product.

- Path Image Coarse (SGC) - Path Image Coarse is similar to Path Image, except that the image is block averaged by factor of 2,3,4,5 or 6. Data from all beam modes can be processed to this product.

- Single Look Complex (SLC) - Single Look Complex data retains the phase and amplitude information of the original SAR data. Single Look Complex product data is stored in slant range, and is corrected for satellite reception errors, includes latitude/longitude positional information. In addition, Single Look Complex data retains the optimum resolution available for each beam mode. This product is suitable for interferometric processing. Data from all beam modes, except ScanSAR, can be processed to this product.

- Map Image (SSG) - Map Image product is oriented with "north up" and is corrected to a user-requested map projection. The positional accuracy of Map Image processing depends on the terrain relief and the beam mode. Data from all beam modes, with the exception of ScanSAR can be processed to this product.

### RADARSAT Processing Levels Available at CRISP

Beam Mode | Path Image (SGF) | Path Image Coarse (SGC) | Map Image (SSG) | Signal Data (RAW) | Single Look Complex (SLC)
Fine |  |  |  |  |
Standard |  |  |  |  |
Wide |  |  |  |  |
ScanSAR Narrow |  |  | Not Available |  | Not Available
ScanSAR Wide |  |  | Not Available |  | Not Available
Extended High |  |  |  |  |
Extended Low |  |  |  |  |

Media
Digital products are available on CD-ROM, 8mm Data Cartridge, or 9-Track CCT.

Format
All products are produced in RADARSAT CEOS format.

Film and Prints
Digital data can be produced as a film (negative or positive) or prints

### RADARSAT Data Processing Time

- Near-Real TIme (NRT) - Digital products are processed within hours of reception.

- Rush - Digital products are processed within 48 hours of reception.

- Regular - Digital products are processed within 10 working days of reception.

RADARSAT Overview