Custom SAR imagery products are available to users by submitting new acquisition tasking requests using either the Capella Console or Capella API. Below is a table of the available parameters.
|
Imaging Parameter |
Description |
Minimum |
Maximum |
|
Window Open |
The earliest user-defined date when acquisition can occur. Image acquisition can begin any time after the Window Open time up to the Window Close time. Units for this parameter is Date Time. |
n/a |
n/a |
|
Window Close |
The latest user-defined date when acquisition can occur. Image acquisition must occur no later than the Window Close time which effectively sets the tasking request expiration date. Units for this parameter is Date Time. |
n/a |
n/a |
|
Collection Time |
The user-defined time when acquisition can occur. Image acquisition can be set to occur only at night (6pm to 6am local time), during the day (6am to 6pm local time), or anytime. In the API, this parameter is called localTime and is Integer. |
n/a |
n/a |
|
Tasking Tier |
The new acquisition tasking tier (e.g. 1-Day, 3-Day, 7-Day). Units for this parameter is String. |
n/a |
n/a |
|
Observation Direction |
Whether spacecraft is looking Left or Right with respect to its velocity vector during image acquisition. Units for this parameter is String. Also available for Standard and Extended products tasking. |
n/a |
n/a |
|
Orbit State |
Whether the spacecraft is on the Ascending (South to North) or Descending (North to South) orbit during image acquisition. Units for this parameter is String. Also available for Standard and Extended products tasking. |
n/a |
n/a |
|
Look Angle Minimum |
Minimum angle between the sub-satellite point and image center point. Based on the full accessible look angle range of the Capella radar the smallest possible look angle is 5°. Units for this parameter is Degrees. |
5 |
40 for Spot 45 for Site 45 for Strip |
|
Look Angle Maximum |
Maximum angle between the sub-satellite point and image center point. Based on the full accessible look angle range of the Capella radar the largest possible look angle is 45°. Units for this parameter is Degrees. |
5 |
40 for Spot 45 for Site 45 for Strip |
|
Imaging Mode |
The radar system imaging mode (e.g. spotlight, sliding spotlight, stripmap). Units for this parameter is String. |
n/a |
n/a |
|
Scene Length |
Desired image scene length. This parameter is only customizable for sliding spotlight and stripmap imaging modes. Units for this parameter is Kilometers. |
5 |
5 for Spot 50 for Site 200 for Strip |
|
Scene Width |
Desired image scene width. This parameter is only customizable for stripmap imaging modes. Units for this parameter is Kilometers. |
5 |
10 for Strip |
|
Ground Range Resolution Minimum |
Minimum ground range resolution of the resulting image. Modification of this parameter only impacts the resolution of the GEO product type. Units for this parameter is Meters. The bandwidth used will be adaptively selected to match the requested resolution. |
0.5 for Spot 0.7 for Site 1.1 for Strip |
3.1 for Spot 5.0 for Site 11.5 for Strip |
|
Ground Range Resolution Maximum |
Maximum ground range resolution of the resulting image. Modification of this parameter only impacts the resolution of the GEO product type. Units for this parameter is Meters. The bandwidth used will be adaptively selected to match the requested resolution. |
0.5 for Spot 0.7 for Site 1.1 for Strip |
3.1 for Spot 5.0 for Site 11.5 for Strip |
|
Azimuth Resolution Minimum |
Minimum azimuth resolution of the resulting image. Modification of this parameter impacts the resolution of the SLC and GEO product types. Units for this parameter is Meters. |
0.5 for Spot 1.0 for Site 1.2 for Strip |
3.1 for Spot 5.0 for Site 11.5 for Strip |
|
Azimuth Resolution Maximum |
Maximum azimuth resolution of the resulting image. Modification of this parameter impacts the resolution of the SLC and GEO product types. Units for this parameter is Meters. |
0.5 for Spot 1.0 for Site 1.2 for Strip |
3.1 for Spot 5.0 for Site 11.5 for Strip |
|
Number Of Looks |
Number of looks used for multi-look processing in geocoded products. Users can select a number of looks smaller than Standard and Extended products. |
1 for Spot 1 for Site 1 for Strip |
9 for Spot 5 for Site 1 for Strip |