Attachment 6 TO1 PWS.pdf

Task Order 1: Telemetry-Only Downlink for COSMIC-2 in West Africa

Overview National Environmental Satellite, Data, and Information Services (NESDIS) requires regional telemetry-only ground station services for the Constellation Observing System for Meteorology Ionosphere and Climate- 2 (COSMIC-2) satellite constellation operated by the National Space Organization (NSPO) in Taiwan to complement National Oceanic and Atmospheric Administration’s (NOAA) network of ground station partners. Under an international agreement, NSPO provides COSMIC-2 data instrument data for international use in numerical weather prediction systems. Ground services outside of Taiwan and operational processing are provided by NOAA, and are coordinated with a contract to University Corporation for Atmospheric Research (UCAR) in Boulder Colorado. NSPO is responsible for satellite operations and ground service scheduling. The current ground network of ten complementary sites includes a commercial ground station in Ghana, West Africa contracted by NOAA. This Task Order (TO) is to provide follow-on West Africa regional coverage to complement the existing ground network.

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

I. The contractor shall provide ground station service at the start of the TO period of performance.

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 COSMIC-2/ Formosat 7 Altitude 550 km Number of Satellites 6 Inclination 24° Passes per day Downlink

40-50 Planning TLE NORAD Catalog Number

44343, 44349, 44350, 44351, 44353, 44358

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 BPSK Modulation n/a Encoding CCSDS Reed-Solomon β (255,223) code with interleaving = 5

Encoding n/a

Polarization RHCP (zenith, nadir) Polarization n/a Required G/T ≥ 12 dB/K EIRP n/a Data rate 2.048 Mbits/sec Data rate n/a Time per contact 2-4 minutes Time per contact n/a

Table 3: Other Specifications Other Service Specifications

Location Service must be in West Africa.

Data Delivery Received data must be de-commutated and parsed into time ordered virtual channel files.

They must be delivered via ftps-push to primary and alternate UCAR Internet points of presence within 60 seconds of end of contact.

Data Maintenance

Virtual channel files must be maintained by contractor for retransmission to UCAR on demand for 24 hours.

Scheduling

Weekly contact schedules will be generated by the Taiwan Satellite Operations Control Center (SOCC) and made available at UCAR. Contacts will nominally be scheduled at the minimum elevation supported by the ground site mask. Pass transmission length is 2-minutes. Weekly contact schedules must be obtained by the contractor using ftps-pull from the UCAR site.

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.