Attachment 9 TO4 PWS.pdf

Task Order 4: Telemetry-Only Downlink for KOMPSAT-5 in Scandinavia

Overview Korean Multi-Purpose Satellite, or KOMPSAT-5 is an environmental satellite program operated by the Korea Aerospace Research Institute (KARI). One of the satellite payloads is the Korea Astronomy and Space Science Institute (KASI) Atmosphere Occultation and Precision Orbit Determination (AOPOD) instrument, an environmental sensor. Under a NOAA-KARI/KASI international agreement, KASI and KARI provide AOPOD instrument data for international use in numerical weather prediction systems. Ground services outside of Korea and operational processing are provided by NOAA, and are coordinated with a contract to University Corporation for Atmospheric Research (UCAR) in Boulder Colorado. KARI is responsible for satellite operations and ground service scheduling. The current ground network of two complementary sites, the NESDIS Command and Data Access Station (CDAS) in Fairbanks, AK and a commercial ground station in Finland contracted by NOAA. This Task Order (TO) is to provide follow-on regional coverage to complement CDAS Fairbanks.

Requirements Ground Services shall meet the requirements of the IDIQ Performance Work Statement (PWS) with the following modifications:

I. The contractor shall provide ground stations service beginning four weeks after TO award.

II. The contractor shall be available for support calls during normal business hours, not to exceed 8 hours per week, throughout the period of performance to resolve technical issues including questions related to site operation, security, and data transfer.

III. The contractor shall provide service as specified in Tables 1-3 below.

Table 1: Mission Mission Information Orbital Information

Mission Name KOMPSAT-5/ARIRANG-5 Altitude 550 km Number of Satellites 1 Inclination 97.6° Passes per day Downlink

5-7 Planning TLE NORAD Catalog Number

39227

Passes per day Command none

Table 2: Telemetry Downlink Specifications Command Specifications (none)

Band S-Band Band n/a Bandwidth ≤ 2.048 MHz Bandwidth n/a Modulation NRZ-L/BPSK/PM Modulation n/a Encoding CCSDS Reed-Solomon Encoding n/a Polarization RHCP (nadir)

LHCP (zenith) Polarization n/a

Required G/T ≥ 15dB/K EIRP n/a

Data rate 1.5625 Mbits/sec Data rate n/a Time per contact 5 minutes Time per contact n/a

Table 3: Other Specifications

Other Service Specifications Location Service must be complementary to Fairbanks, AK for polar orbit.

Data Delivery

Received data must be de-commutated and parsed into time ordered virtual channel files according to the CCSDS standard and delivered to KARI Internet points of presence according to KARI interface specifications. Contractor is responsible for working with KARI to establish the interface. NOAA will facilitate working with KARI.

Scheduling

Weekly contact schedules will be generated by the KARI Satellite Operations Control Center (SOCC) in Korea. They are transmitted to the Contractor as a comma separated value file via email or file transfer. Contacts will nominally be scheduled with minimum 10° elevation.

Pass transmission time averages 7-minutes. Contractor is responsible for working with KARI to establish the interface. NOAA will facilitate working with KARI.

Period of Performance The period of performance shall be a one (1) year base period with four (4) one year options.

Government Furnished Information (GFI) NOAA will provide space to ground interface control documents, ground network interconnection and security documents, and related specifications after TO award.