CAPELLA X-SAR

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Capella Space is a private commercial company origin from USA and plans to launch 36 SAR satellites in total in the next 3-4 years time from 2020.

As is known, optical satellites have two important restrictive factors: Light and weather conditions. Cloud cover and no light mean that only 25% of the Earth surface can be captured at any time by optical imaging. Capella SAR (Artificial Aperture Radar) satellites are able to capture in X-band without being affected by clouds and no light factors.

Each Capella satellite has a three-year design life. By launching 12 satellites a year, the team will continue its satellite viewing capability indefinitely. Capella will be able to apply improvements in constellation and radar performance quarterly, with the feature of constantly updating and renewing satellite technology. System features for the first satellites are listed in Table 1.

IMAGING MODES:

 

Very High Resolution SPOT

Very High Resolution SITE

Very High Resolution STRIP

Collection Mode

Staring Spotlight

Sliding Spotlight

Strip Map

Single Look Complex Resolution

R=0.3m    A=0.5m

R=0.5m     A=0.5m

R=1.0m      A=1.7m

Ground Range Resolution

0.5m

1.0m

2.0m

Width

5 km

5 km

5 km

Length

5 km

10 km – 100 km

20 km – 1000 km

X Band Single Polarimetry (HH or VV) SAR


FREQUENT GLOBAL UPDATES:

USAGE AREAS:

  • DEFENSE and INTELLIGENCE
  • INSURANCE
  • DISASTER MANAGEMENT
  • ENERGY OIL and GAS
  • URBAN DEVELOPMENT/INFRASTRUCTURE
  • MARITIME


IMAGE MODE COVERAGE SIZES:


For more information:

https://www.capellaspace.com/


TECHNICAL SPECIFICATIONS:

Frequency

9.4 – 9.9 GHz (X-Band)

Ouput Power

600 W @ 20% duty cycle

Waveform

Linear FM Chirp

PRF

Greater than 5 kHz

Imaging Bandwidth

Up to 500 MHz

Polarizations

Single Pol VV or HH

Typical Resolutions (GRD)

0.6 m – 3 m+

NESZ (at mid-swath)

-15 dB @ 0.5 m & 40 deg. incidence

Acquisition Direction

Left and right sides

Imaging Modes

Stripmap, multi-swath stripmap, spotlight, sliding spotlight, multi-look spotlight

On-Board Storage

6 TB Non-Volatile Payload Data Storage

On-Board Processor

NVIDIA GPU used for “quick-look” SAR processing

Payload Antenna

48 dB gain / 8 m^2 class