Attachment Engineering Statemt

This document pretains to SAT-MOD-20180305-00019 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2018030500019_1348802

Engineering Statement 1 Introduction Intelsat License LLC (“Intelsat”) seeks authority in this application to operate the satellite designated as Intelsat 9 (Call Sign S2380), at 66.15° E.L. The characteristics of the Intelsat 9 spacecraft, as well as its compliance with the various provisions of Part 25 of the Federal Communications Commission’s (“FCC” or “Commission”) rules, are provided in this Engineering Statement, which also updates the beam gain contours. In all other respects, the characteristics of Intelsat 9 are the same as those described in SAT-MOD-20161110-00105. 2 Spacecraft Overview Intelsat 9 is a Boeing model 601HP spacecraft capable of operating in the C-band and Ku-band frequencies listed below and will provide service to Asia, Europe, and North Africa. Direction Frequency 5925 – 6425 MHz Uplink 14000 – 14500 MHz 3700 – 4200 MHz Downlink 11450 – 11700 MHz 11700 – 12200 MHz1 2.1 Spacecraft Characteristics Intelsat 9 is a Boeing model BS601HP three-axis stabilized type spacecraft that has a rectangular outer body structure. Intelsat 9 utilizes two deployable solar array wings and a number of deployable and non-deployable antennas. The Intelsat 9 spacecraft is composed of the following subsystems:  Thermal;  Power;  Attitude Control;  Propulsion;  Telemetry, Command and Ranging;  Uplink Power Control; and  Communications. 1 Operations in 11700-12200 MHz at 66.15° E.L. will be in Regions 1 and 3 only. Page 1 of 12

These subsystems maintain the correct position and attitude of the spacecraft; ensure that all internal units are maintained within the required temperature range; and ensure that the spacecraft can be commanded and controlled with a high level of reliability from launch to the end of its useful life. The spacecraft design incorporates redundancy in all of the various subsystems in order to avoid single-point failures. The structural design of Intelsat 9 provides mechanical support for all subsystems. The structure supports the communication antennas, solar arrays, and thrusters. It also provides a stable platform for preserving the alignment of critical elements of the spacecraft. 2.2 Communication Subsystem Intelsat 9 provides active communication channels at C-band frequencies, each having a bandwidth of 36 MHz, and Ku-band frequencies each having a bandwidth of 36 MHz. The Intelsat 9 frequencies, polarization, and channel plan are provided in the Schedule S. An explanation of how uplink frequency bands are connected to downlink frequency bands is provided in Exhibit 5. The coverage contours and performance characteristics of all Intelsat 9 beams except for the global beams are provided in the Schedule S. The global beams have gain contours that vary by less than 8 dB across the surface of the Earth and, accordingly, the gain at 8 dB below the peak falls beyond the edge of the Earth. Therefore, pursuant to Section 25.114(c)(4)(vi)(A) of the FCC’s rules, contours for these beams are not required to be provided and the associated GXT files have not been included in Schedule S. Intelsat has included the Schedule S beam designation for all beams in Exhibit 1. Exhibits 2 and 3 provide the beam parameters for the Intelsat 9 uplink and downlink beams, respectively. 2.3 Telemetry, Command and Ranging Subsystem The telemetry, command and ranging (“TC&R”) subsystem provides the following functions:  Acquisition, processing and transmission of spacecraft telemetry data;  Reception and retransmission of ground station generated ranging signals; and  Reception, processing and distribution of telecommands. The Intelsat 9 command and telemetry channel frequencies are shown in Exhibit 4. The coverage patterns of the command and telemetry beams have gain contours that vary by less than 8 dB across the surface of the Earth, and accordingly the gain at 8 dB below the peak falls beyond the edge of the Earth. Therefore, pursuant to Section 25.114(c)(4)(vi)(A) of the FCC’s rules, contours for these beams are not required to be provided and the associated GXT files have not been included in Schedule S. The Intelsat 9 command and telemetry subsystem performance is summarized in Exhibit 4. Page 2 of 12

2.4 Uplink Power Control Subsystem Intelsat 9 utilizes two Ku-band channels for uplink power control (“ULPC”), antenna tracking, and ranging. The coverage patterns of the ULPC beams have gain contours that vary by less than 8 dB across the surface of the Earth, and accordingly the gain at 8 dB below the peak falls beyond the edge of the Earth. Therefore, pursuant to Section 25.114(c)(4)(vi)(A) of the FCC’s rules, contours for these beams are not required to be provided and the associated GXT files have not been included in Schedule S. The Intelsat 9 ULPC frequencies and subsystem performance are summarized in Exhibit 4. 2.5 Satellite Station-Keeping The spacecraft will be maintained within 0.05° of its nominal longitudinal position in the east- west direction. Accordingly, it will comply with Section 25.210(j) of the Commission’s rules. The attitude of the spacecraft will be maintained with accuracy consistent with the achievement of the specified communications performance, after taking into account all error sources (i.e., attitude perturbations, thermal distortions, misalignments, orbital tolerances, and thruster perturbations, etc.). 3 Services Intelsat 9 is a general purpose communications satellite and has been designed to support various services offered within the Intelsat satellite system. Depending upon the needs of the users, the transponders on Intelsat 9 can accommodate television, radio, voice, and data communications. Typical communication services include:  Compressed digital video;  High speed digital data; and  Digital single channel per carrier (“SCPC”) data channels. 4 Power Flux Density The power flux density (“PFD”) limits for space stations operating in the 3700 – 4200 MHz and 11450 –11700 MHz bands are specified in Section 25.208 of the Commission’s rules. There are no PFD limits specified for the 11700 – 12200 MHz band in either Section 25.208 of the Commission’s rules or No. 21.16 of the International Telecommunication Union (“ITU”) Radio Regulations. The maximum PFD levels for the Intelsat 9 transmissions were calculated for the 3700 – 4200 MHz and 11450 – 11700 MHz bands. The results are provided in Schedule S and show that the downlink power flux density levels of the Intelsat 9 carriers do not exceed the limits specified in Section 25.208 of the Commission’s rules or the limits specified in No. 21.16 of the ITU Radio Regulations. Page 3 of 12

5 Emission Compliance Section 25.202(e) of the Commission’s rules requires that the carrier frequency of each space station transmitter be maintained within 0.002% of the reference frequency. Intelsat 9 is designed to be compliant with the provisions of this rule. Intelsat will comply with the provisions of Section 25.202(f) of the Commission’s rules with regard to Intelsat 9’s emissions. 6 Orbital Location Intelsat requests that it be assigned the 66.15° E.L. orbital location for Intelsat 9. The 66.15° E.L. location satisfies Intelsat 9 requirements for optimizing coverage, elevation angles, and service availability. Additionally, the location also ensures that the maximum operational, economic, and public interest benefits will be derived. 7 ITU Filings Intelsat 9’s operations in the 3700 – 4200 MHz, 5925 – 6425 MHz, 11450 – 11700 MHz, and 14000 – 14500 MHz frequency bands have been notified under the Administration of the United States’ International Telecommunication Union (“ITU”) filings INTELSAT7 66E and INTELSAT9 66E. Intelsat 9’s operation in the 11700 – 12200 MHz frequency band has been notified under the Administration of the United Kingdom’s ITU filing Intelsat KUEXT 66E. Intelsat respectfully requests that the United States Administration state its non-objection to the United Kingdom’s use of Intelsat 9 for purposes of bringing back into use and maintaining the United Kingdom’s Intelsat KUEXT 66E filing. 8 Coordination Statement and Certifications The downlink EIRP density of Intelsat 9 transmissions in the conventional C-band will not exceed 3 dBW/4kHz for digital transmissions or 8 dBW/4kHz for analog transmissions, and associated uplink transmissions will not exceed applicable EIRP density envelopes in Sections 25.218 or 25.221(a)(1) unless the non-routine uplink and/or downlink operation is coordinated with operators of authorized co-frequency space stations at assigned locations within six degrees of Intelsat 9 at 66.15° E.L. The downlink EIRP density of Intelsat 9 transmissions in the conventional or extended Ku-bands will not exceed 14 dBW/4kHz for digital transmissions or 17 dBW/4kHz for analog transmissions, and associated uplink transmissions will not exceed applicable EIRP density envelopes in Sections 25.218, 25.222(a)(1), 25.226(a)(1), or 25.227(a)(1) unless the non-routine uplink and/or downlink operation is coordinated with operators of authorized co-frequency space stations at assigned locations within six degrees of Intelsat 9 at 66.15° E.L. Page 4 of 12

9 Orbital Debris Mitigation Plan Intelsat is proactive in ensuring safe operation and disposal of this and all spacecraft under its control. The four elements of debris mitigation are addressed below. 9.1 Spacecraft Hardware Design The spacecraft is designed such that no debris will be released during normal operations. Intelsat has assessed the probability of collision with meteoroids and other small debris (<1 cm diameter) and has taken the following steps to limit the effects of such collisions: (1) critical spacecraft components are located inside the protective body of the spacecraft and properly shielded; and (2) all spacecraft subsystems have redundant components to ensure no single-point failures. The spacecraft does not use any subsystems for end-of-life disposal that are not used for normal operations. 9.2 Minimizing Accidental Explosions Intelsat has assessed the probability of accidental explosions during and after completion of mission operations. The spacecraft is designed in a manner to minimize the potential for such explosions. Propellant tanks and thrusters are isolated using redundant valves and electrical power systems are shielded in accordance with standard industry practices. At the completion of the mission and upon disposal of the spacecraft, Intelsat will ensure active units are turned off. Due to the design of Intelsat 9, Intelsat will not be able to vent all pressurized systems. Upon disposal Intelsat will vent the fuel and Oxidizer tanks; the Xenon propellant on Intelsat 9 has already been completely vented. However, because of the spacecraft design, Intelsat will not be able to vent two helium tanks on Intelsat 9. Intelsat notes that the Satellite Industry Association’s pending request for blanket waiver of Section 25.283(c) includes the Intelsat 9 satellite. See Satellite Industry Association, Request for Blanket Waiver of Section 25.283(c) of the Commission’s Rules, IB Docket No. 02-54 (Oct. 1, 2010). 9.3 Safe Flight Profiles Intelsat has assessed and limited the probability of the space station becoming a source of debris as a result of collisions with large debris or other operational space stations. Subject to receipt of FCC approval, Intelsat 9 will be drifted to 66.15 E.L Intelsat is not aware of any other FCC-licensed system, or any other system applied for and under consideration by the FCC, that will have an overlapping station-keeping volume with Intelsat 9 at 66.15° E.L. Intelsat is also not aware of any system with an overlapping station- keeping volume with Intelsat 9 that is the subject of an ITU filing and that is either in orbit or progressing towards launch. 9.4 Post Mission Disposal At the end of the mission, Intelsat intends to dispose of the spacecraft by moving it to an altitude of at least 150 kilometers above the geostationary arc. Intelsat has reserved 36.1 kilograms of fuel for this purpose. In its Second Report and Order in IB Docket 02-54, Mitigation of Orbital Page 5 of 12

Debris,2 the FCC declared that satellites launched prior to March 18, 2002, such as the Intelsat 9 satellite, would be designated as grandfathered satellites not subject to a specific disposal altitude. Therefore, the planned disposal orbit for Intelsat 9, as revised, complies with the FCC’s rules. The reserved fuel figure was determined by the spacecraft manufacturer and provided for in the propellant budget. This figure was calculated taking into account the expected mass of the satellite at the end of life and the required delta-velocity to achieve the desired orbit. The fuel gauging uncertainty has been taken into account in these calculations. 10 TC&R Control Earth Stations Intelsat will conduct TC&R operations through one or more of the following earth stations: Fuchsstadt, Germany; Hartebeeshoek, South Africa; or Fucino, Italy. Additionally, Intelsat is capable of remotely controlling Intelsat 9 from its facilities in McLean, VA or in Long Beach, CA. 2 Mitigation of Orbital Debris, Second Report and Order, 19 FCC Rcd 11567 (2004). Page 6 of 12

Certification Statement I hereby certify that I am a technically qualified person and am familiar with Part 25 of the Commission’s rules. The contents of this engineering statement were prepared by me or under my direct supervision and to the best of my knowledge are complete and accurate. /s/ Alexander Gerdenitsch March 5, 2018 Alexander Gerdenitsch Date Intelsat Manager, Spectrum Policy, Americas Page 7 of 12

EXHIBIT 1 BEAM POLARIZATIONS AND GXT FILE NAMES Schedule S Beam Names Linear Polarization Circular Polarization Beam Designation Uplink Uplink Downlink Downlink Uplink Uplink Downlink Downlink (H-Pol.) (V-Pol.) (H-Pol.) (V-Pol.) (LHCP) (RHCP) (LHCP) (RHCP) C-Band Beams Central Africa AMHU AMVU AMHD AMVD ---- ---- ---- ---- Ku-Band Beams Africa & China ---- AEVU AEHD ---- ---- ---- ---- ---- Indian Ocean BRHU ---- ---- BRVD ---- ---- ---- ---- North Africa MXHU MXVU MXHD MXVD ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- Telemetry ---- ---- ---- TLM* ---- ---- ---- ---- Global Telemetry ---- ---- ---- ---- ---- ---- ---- TLMP* Pipe Telemetry Bicone ---- ---- TLMB* ---- ---- ---- ---- ---- Command ---- CMD* ---- ---- ---- ---- ---- ---- Global Command Pipe ---- ---- ---- ---- ---- CMDP* ---- ---- Command Bicone ---- CMDB* ---- ---- ---- ---- ---- ---- ULPC ---- ---- UPCH* UPCV* ---- ---- ---- ---- * GXT files are not provided for the indicated beams because their -8 dB gain contours extend beyond the edge of the Earth. Page 8 of 12

EXHIBIT 2 COMMUNICATION SUBSYSTEM UPLINK BEAM PARAMETERS Ku-Band Indian Ku-Band Africa Beam Name C-Band Central Africa Ocean & China Schedule S Beam ID AMHU AMVU BRHU AEVU Frequency Band (MHz) 5925 - 6425 5925 - 6425 14000 - 14260 14000 - 14240 Polarization Horizontal Vertical Horizontal Vertical G/T (dB/K) -0.2 -0.8 3.3 0.0 Minimum SFD-- -94.8 -93.3 -96.8 -93.1 (dBW/m2) Maximum SFD-- -78.8 -77.3 -80.8 -77.1 (dBW/m2) Beam Name Ku-Band North Africa Schedule S Beam ID MXVU MXHU Frequency Band (MHz) 14240 - 14500 14260 - 14500 Polarization Vertical Horizontal G/T (dB/K) 8.6 8.4 Minimum SFD-- -102.2 -101.6 (dBW/m2) Maximum SFD-- -86.2 -85.6 (dBW/m2) Page 9 of 12

EXHIBIT 3 COMMUNICATION SUBSYSTEM DOWNLINK BEAM PARAMETERS Ku-Band Indian Ku-Band Africa Beam Name C-Band Central Africa Ocean & China Schedule S Beam ID AMHD AMVD BRVD AEHD Frequency Band 3700 - 4200 3700 - 4200 11700- 11960 11450 - 11700 (MHz) Polarization Horizontal Vertical Vertical Horizontal Maximum Beam 42.7 42.8 48.1 49.6 Peak EIRP (dBW) Maximum Beam 4.4 Peak EIRP Density 4.5 9.8 11.3 (dBW/4kHz) Beam Name Ku-Band North Africa Schedule S Beam ID MXVD MXHD Frequency Band (MHz) 11900 - 12200 11900 - 12200 Polarization Vertical Horizontal Maximum Beam Peak 54.2 54.2 EIRP (dBW) Maximum Beam Peak EIRP Density 15.9 15.9 (dBW/4kHz) Page 10 of 12

EXHIBIT 4 TC&R SUBSYSTEM CHARACTERISTICS Command Command Command Beam Name Global Pipe Bicone Schedule S Beam ID CMD CMDP CMDB Frequencies (MHz) 14494.5 14000.5 14494.5 Polarization Vertical RHCP Vertical Peak Flux Density at Command -103.0 -102.2 -90 Threshold (dBW/m2-Hz) Telemetry Telemetry Telemetry Beam Name ULPC1 ULPC2 Global Pipe Bicone Schedule S Beam ID TLM TLMP TLMB UPCH UPCV 11700.5 & 11700.5 & 11700.5 & Frequencies (MHz) 11699.0 11703.0 11702 11702 11702 Polarization Vertical RHCP Horizontal Horizontal Vertical Maximum Channel EIRP (dBW) 9.2 14.8 10.7 13.2 12.3 Maximum Beam Peak EIRP -11.8 -6.7 -10.3 5.2 4.3 Density (dBW/4kHz) Note: RHCP: Right Hand Circular Polarization, LHCP: Left Hand Circular Polarization Page 11 of 12

EXHIBIT 5 UPLINK BAND TO DOWNLINK BAND CONNECTIONS Uplink Downlink Uplink Uplink Center Downlink Downlink Center Channel Channel Beam Uplink Frequency Channel Beam Downlink Frequency Bandwidth Designation Name Polarization (MHz) Designation Name Polarization (MHz) (MHz) CU01 Central Africa Horizontal 5945 CD01 Central Africa Vertical 3720 36 CU03 Central Africa Horizontal 5985 CD03 Central Africa Vertical 3760 36 CU05 Central Africa Horizontal 6025 CD05 Central Africa Vertical 3800 36 CU07 Central Africa Horizontal 6065 CD07 Central Africa Vertical 3840 36 CU09 Central Africa Horizontal 6105 CD09 Central Africa Vertical 3880 36 CU11 Central Africa Horizontal 6145 CD11 Central Africa Vertical 3920 36 CU13 Central Africa Horizontal 6185 CD13 Central Africa Vertical 3960 36 CU15 Central Africa Horizontal 6225 CD15 Central Africa Vertical 4000 36 CU17 Central Africa Horizontal 6265 CD17 Central Africa Vertical 4040 36 CU19 Central Africa Horizontal 6305 CD19 Central Africa Vertical 4080 36 CU21 Central Africa Horizontal 6345 CD21 Central Africa Vertical 4120 36 CU23 Central Africa Horizontal 6385 CD23 Central Africa Vertical 4160 36 CU02 Central Africa Vertical 5945 CD02 Central Africa Horizontal 3720 36 CU04 Central Africa Vertical 5985 CD04 Central Africa Horizontal 3760 36 CU06 Central Africa Vertical 6025 CD06 Central Africa Horizontal 3800 36 CU08 Central Africa Vertical 6065 CD08 Central Africa Horizontal 3840 36 CU10 Central Africa Vertical 6105 CD10 Central Africa Horizontal 3880 36 CU12 Central Africa Vertical 6145 CD12 Central Africa Horizontal 3920 36 CU14 Central Africa Vertical 6185 CD14 Central Africa Horizontal 3960 36 CU16 Central Africa Vertical 6225 CD16 Central Africa Horizontal 4000 36 CU18 Central Africa Vertical 6265 CD18 Central Africa Horizontal 4040 36 CU20 Central Africa Vertical 6305 CD20 Central Africa Horizontal 4080 36 CU22 Central Africa Vertical 6345 CD22 Central Africa Horizontal 4120 36 CU24 Central Africa Vertical 6385 CD24 Central Africa Horizontal 4160 36 KU01 Africa/China Vertical 14020 KD01 Africa/China Horizontal 11477 36 KU03 Africa/China Vertical 14060 KD03 Africa/China Horizontal 11517 36 KU05 Africa/China Vertical 14100 KD05 Africa/China Horizontal 11557 36 KU07 Africa/China Vertical 14140 KD07 Africa/China Horizontal 11597 36 KU09 Africa/China Vertical 14180 KD09 Africa/China Horizontal 11637 36 KU11 Africa/China Vertical 14220 KD11 Africa/China Horizontal 11677 36 KU07 Africa/China Vertical 14140 KD07 Indian Ocean Vertical 11597 36 KU09 Africa/China Vertical 14180 KD09 Indian Ocean Vertical 11637 36 KU11 Africa/China Vertical 14220 KD11 Indian Ocean Vertical 11677 36 KU13 North Africa Vertical 14260 KD13 North Africa Horizontal 11960 36 KU15 North Africa Vertical 14300 KD15 North Africa Horizontal 12000 36 KU17 North Africa Vertical 14340 KD17 North Africa Horizontal 12040 36 KU19 North Africa Vertical 14380 KD19 North Africa Horizontal 12080 36 KU21 North Africa Vertical 14420 KD21 North Africa Horizontal 12120 36 KU23 North Africa Vertical 14460 KD23 North Africa Horizontal 12160 36 KU02 Indian Ocean Horizontal 14040 KD02 Indian Ocean Vertical 11740 36 KU04 Indian Ocean Horizontal 14080 KD04 Indian Ocean Vertical 11780 36 KU06 Indian Ocean Horizontal 14120 KD06 Indian Ocean Vertical 11820 36 KU08 Indian Ocean Horizontal 14160 KD08 Indian Ocean Vertical 11860 36 KU10 Indian Ocean Horizontal 14200 KD10 Indian Ocean Vertical 11900 36 KU12 Indian Ocean Horizontal 14240 KD12 Indian Ocean Vertical 11940 36 KU14 North Africa Horizontal 14280 KD14 North Africa Vertical 11980 36 KU16 North Africa Horizontal 14320 KD16 North Africa Vertical 12020 36 KU18 North Africa Horizontal 14360 KD18 North Africa Vertical 12060 36 KU20 North Africa Horizontal 14400 KD20 North Africa Vertical 12100 36 KU22 North Africa Horizontal 14440 KD22 North Africa Vertical 12140 36 KU24 North Africa Horizontal 14480 KD24 North Africa Vertical 12180 36 Page 12 of 12


Document Created: 2018-03-05 13:51:13
Document Modified: 2018-03-05 13:51:13
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