Sensor · Spaceborne

AOPOD (KOMPSAT-5)

Missions → KOMPSAT-5 (Extended operations)

KOMPSAT-5 secondary GNSS radio-occultation and precision-orbit-determination payload.

Sensor

Atmospheric Occultation and Precision Orbit Determination (AOPOD) is a secondary payload aboard KOMPSAT-5. It combines a dual-frequency Global Positioning System (GPS) receiver with a laser retroreflector array for precise orbit determination and atmospheric radio-occultation observations.^[1]

The Integrated GPS Occultation Receiver (IGOR) has four input antennas: two for precise orbit determination and two for occultation observations. Their respective sampling rates are 0.1 Hz and 50 Hz. The laser retroreflector array is used to validate KOMPSAT-5 precise orbit determination.^[1]^[2]

Radio occultation measures phase delay caused by refraction during occultation between GPS and a low-Earth-orbit satellite, supporting temperature and humidity sounding and ionospheric electron measurements. KOMPSAT-5 has provided an average of hundreds of neutral-atmosphere occultation soundings daily since 2015, globally and in all weather conditions, from the lower to the middle stratosphere.^[3]^[1]

Operator pricing

Pricing not publicly listed by operator

Supply chain position

carried by KOMPSAT-5

Methods this sensor implements

Demonstrated

GNSS radio occultationvia KOMPSAT-5
AOPOD is KOMPSAT-5's GNSS radio-occultation payload.

Capable, undemonstrated

None on record.

Topics this relates to

Atmospheric profiling GNSS radio occultation(demonstrated)well suited

Sources

[1]Missions, NASA JPL GENESISagency doc2026-11-01
[2]KOMPSAT-5 program, CGMS-39 KMA/KARI/KASI working paperagency doc2026-11-01
[3]AOPOD instrument record, WMO OSCARagency doc2026-11-01
[4]KOMPSAT-5 satellite record, WMO OSCARagency doc2026-11-01

Cite https://eo-atlas.org/products/sensor/aopod-kompsat-5 Markdown twin → Field definitions → Suggest a correction →

How to cite this page

Plain text

AOPOD (KOMPSAT-5). EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/products/sensor/aopod-kompsat-5 (CC BY 4.0)

BibTeX

@misc{eoatlas:products:sensor:aopod-kompsat-5,
  title = {AOPOD (KOMPSAT-5)},
  author = {{EO-Atlas}},
  publisher = {SpectraWorks B.V.},
  note = {CC BY 4.0},
  url = {https://eo-atlas.org/products/sensor/aopod-kompsat-5}
}