coms 1 satellite

transmitting antenna, this function will allow dissemination in HRIT and LRIT format of Through that hourly-based traceable variability, the ship’s cruising speed could also be estimated. In response to this space plan, the Korea Meteorological Administration (KMA) started to define and formulate the basic requirements for COMS-1, the first geostationary meteorological satellite mission of Korea. It will give early warning of Platform stability: Even with perfect optical instruments, the image quality is strongly dependent on the quality of the platform stabilization. The preliminary results have confirmed the fundamental assumptions, and even evidence, in some aspects, that significant margins with respect to the specification allocations could be obtained. 27). • METRI/KORDI (Meteorological Research Institute/), Seoul, provide the user requirements of meteorological and ocean monitoring payloads, • ETRI (Electronic and Telecommunications Research Institute), Daejeon, provides the communications payload development, the satellite control system development, and ground station co-development. The GSD (Ground Sampling Distance) at the center of the target region (defined at 130º E - 36º N) is 500 m x 500 m. Such a resolution is equivalent to a GSD of 360 m in nadir direction on the equator. Figure 9: Schematics for Ka-band in orbit testing (image credit: EADS Astrium, KARI), Figure 10: GOCI L1A mosaic image (image credit: KORDI) 36), • On July 4, 2010, COMS-1 reached its GEO location after three apogee engine firings and two station-acquisition maneuvers.37), • The satellite successfully reached orbit and separated from the second stage rocket about 32 minutes after takeoff. The payload was thoroughly tested from the ETR ground station with the support of the KARI SOC (Spacecraft Operation Center). TOP ECE REVIEW CENTER 4th Floor Espana Place Bldg., 1139 Adelina St., Sampaloc, Manila Beside McDonalds P. Campa. [8], Following launch, COMS-1 separated into a geosynchronous transfer orbit. All performances were found within the specifications, and no antenna pointing adjustment was found necessary. The spacecraft will have a launch mass of 2.4 tons and a spacecraft power of 2.5 kW at The Ka-Band Payload will provide the beam switching function for high A wire harness in the spacecraft connects the sensor and electronics modules. 34): 1) It is based on “a posteriori” compensation of the geometric error of the image location or the effects of any perturbations on the image geometry (the ‘image motion compensation’) to be performed on-ground. For this purposes, NMSC/KMA has been developing the CMDPS within the frame of COMS program. Interface units are being used for the serial links, namely the actuator drive electronics with the bus units (including thermal control), the modular payload interface unit with the Ka-band communication payload, and the MI interface unit with the MI instrument. • The Korean space industry is the provider/manufacturer of system hardware and software components. Communications Payload: The Ka-Band payload will provide three regional beams

Users can now output the data concerning to red tides, current vectors, fishing ground information as well as to vegetation index that were not included in the previous versions of GDPS. 30 minutes In addition to Earth imaging in nominal operations, there are 3 special observation missions (calibration runs) for support of the meteorological observation mission. The COMS-1 spacecraft structure is based on the Eurostar-3000 bus design. Some satellite off pointing was necessary to analyze the antenna coverage, emitted power, EIRP, AFR, G/T, etc. The GIFOV (Geometric Instantaneous Field of View) is required to be ≤ 28 µrad (i.e., 1 km pixel size) for the VIS band and ≤ 112 µrad (i.e., 4 km pixel size) for all IR bands. Its single solar array is expected to generate a minimum of 2.5 kilowatts of power. The calibration accuracy for infrared channels is better than 1 K, traceable to NIST (National Institute of Standards and Technology) via thermometry standards. The mechanism pointing law provides the relation between rotation of both actuators and the LOS with a very high stability. geostationary satellite COMS (Communication, Ocean and Meteorological Satellite) or Cheollian.

Built-in electrical signals monitor all other properties of the signal path. Figure 25: Transponder design layout (image credit: SI), South Korea: beam center at 127.44º E, 35.08º N - Return link: 10 Mbit/s (max), Table 11: Specifications of CTES (Communication Test Earth Station) requirements, Figure 26: Isometric views of the transponder panel (image credit: SI). 18) Jong-Kuk Choi, Young Je Park, Jae Hyun Ahn, Hak Soo Lim, Jinah Eom, Joo-Hyung Ryu, “GOCI, the world's first geostationary ocean color observation satellite, for the monitoring of temporal variability in coastal water turbidity,” Journal of Geophysical Research, Vol. COPS (Ka-band Communication Payload COPS), HRIT/LRIT transmission within 15 minutes after image acquisition, Table 1: Overall COMS-1 system requirements, Figure 1: Artist's rendition of the COMS-1 spacecraft in orbit (image credit: KARI, KMA). The cooperative agreement between KARI and Astrium calls also for the training of over 40 Korean engineers by the Astrium design team.

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