Attachment 8 TO3 PWS.pdf

Task Order 3: Telemetry-Only Downlink for PAZ in Scandinavia

Overview National Environmental Satellite, Data, and Information Services (NESDIS) has need for regional telemetry-only ground station services for the Spanish PAZ satellite operated by the Hisdesat, a government satellite operator in Spain to complement NOAA’s telemetry service at Fairbanks Alaska.

One of the satellite payloads is the Institut de Ciencies de l’Espai (ICE) Radio Occultations and Heavy Precipitation with PAZ (ROHPP) instrument, an environmental sensor. Under a NOAA-Hisdesat international agreement, Hisdesat provides ROHPP instrument data for international use in numerical weather prediction systems. Ground services outside of Spain and operational processing are provided by NOAA, and are coordinated with a contract to University Corporation for Atmospheric Research (UCAR) in Boulder Colorado. Hisdesat 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 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.

Specifications

Table 1: Mission

Mission Information Orbital Information Mission Name Paz / ROHP experiment Altitude 510 km Number of Satellites 1 Inclination 97.6° Passes per day Downlink

5-7 Planning TLE NORAD Catalog Number

43215

Passes per day Command none

Table 2: Telemetry Downlink Specifications Command Specifications (none)

Band S-Band Band n/a Bandwidth 5 kHz Bandwidth n/a Modulation BPSK Modulation n/a

Encoding CCSDS Reed-Solomon β (255,223) code with interleaving = 5

Encoding n/a

Polarization RHCP (nadir) Polarization n/a Required G/T ≥ 14 dB/K EIRP n/a Data rate 1 Mbits/sec Data rate n/a Time per contact 6 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.

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 data files must be maintained by contractor for retransmission to NOAA on demand for 24 hours.

Scheduling

Weekly contact schedules will be generated by the Hisdesat Satellite Operations Control Center (SOCC) in Spain and delivered to the Contractor. Contacts will nominally be scheduled at 10° elevation. Passes average 7 minutes. Contractor is responsible for working with Hisdesat to establish the interface. NOAA will facilitate working with Hisdesat.

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.