Alaskan Satellite Space Segment CDRL-SMD-02 DID.pdf

Alaskan Satellite Space Segment SIR # 693KA8-25-R-00006

DATA ITEM DESCRIPTION

1. Title 2. Identification Number Satellite Modeling Data (SMD)

SMD-02

3. Description/Purpose

The Contractor must provide Satellite Modeling Data (SMD) which documents satellite characteristics for all proposed satellites. SOW section C.5.2

4. Approval Date (YYYY/MM/DD) 5. Office of Primary Responsibility (OPR) 6a. Frequency 6b. CLIN

AJW-1531 - FAA Telecommunications Engineering Team

One/R

01_0001AA

01_0001AB

7. Delivery Instructions

This DID should be delivered by email to the CO and the COR no later than 5 DACA. Acceptable electronic formats are MS Office 365 or Adobe Acrobat PDF format.

8. Approval 9a. References 9b. CDRL Number

A

Contracting Officer and Contracting Officer Representative

CDRL SMD-02

10. Preparation Instructions FORMAT: The information required for the SMD may be prepared in Contractor format in accordance with the following content instructions.

CONTENTS: The SMD must include, but is not limited to, the following for each satellite:

1. Satellite Modeling Data.

a) Official satellite name

b) Satellite orbital location (deg E/deg W)

c) Satellite ephemeris data on a weekly basis or access to ephemeris data on an as needed bases.

d) Spacecraft platform bias (applies to all non-steerable antennas)

e) Transponder frequency plan for the entire satellite (including transponder names, frequencies and polarization)

f) Beacon/telemetry carrier frequency plan (including beacon names, frequencies and polarization)

g) Beacon/telemetry carrier EIRP towards Anchorage, AK

h) Receive system noise temperature for each transponder for primary configuration. Provide transponder-specific value, rather than nominal value.

i) Saturated output power at transmit antenna flange for each transponder for primary configuration.

j) Transponder Beam-Peak Saturation Flux Density (Beam-Peak SFD) [dBW/m2] for each gain step for primary configuration in Fixed Gain Mode (FGM).

k) Receive system noise temperature for each transponder for each redundant configuration.

l) Saturated output power at transmit antenna flange for each transponder for each redundant configuration.

m) Transponder Beam-Peak Saturation Flux Density (Beam-Peak SFD) [dBW/m2] for each gain step for each redundant configuration in Fixed Gain Mode (FGM).

n) Normalized transponder filter (IMUX/OMUX) characteristics-frequency vs. gain referenced to 0dB for each OMUX.

o) Amplifier non-linear single-carrier transfer characteristics for each amplifier. If linearizer is implemented, then the characteristics across the TWTA and linearizer. Power transfer characteristics specified in terms of IBO vs. OBO or Pin vs. Pout. Phase-shift characteristics specified in terms of IBO

vs. phase-shift in degrees, or AM/PM characteristics.

p) Antenna copol gain pattern files for each uplink antenna, measured at the center frequency of each transponder – in satellite-centric coordinates to cover the visible earth. Provide in electronic data form as a grid in satellite-centric coordinates (e.g. in Satsoft, TICRA, etc. format) for each transponder.

q) Antenna copol gain pattern files for each uplink antenna, measured at the center frequency of each transponder – in satellite-centric coordinates to cover the visible earth. Provide in electronic data form as a grid in satellite-centric coordinates (e.g. in Satsoft, TICRA, etc. format) for each transponder.

r) Satellite antenna pointing or bias-deployment offset vs. what the orientation was during measurement.

DATA ITEM DESCRIPTION