Attachment EngineeringStatement

This document pretains to SAT-AMD-20170208-00016 for Amended Filing on a Satellite Space Stations filing.

IBFS_SATAMD2017020800016_1180166

    Engineering Statement
1    Introduction
Intelsat License LLC (“Intelsat”) seeks authority in this application to operate the satellite
designated as Intelsat 9 at 29.5° W.L. The characteristics of the Intelsat 9 spacecraft, as well as
its compliance with the various provisions of Part 25 of the Federal Communication
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-20120703-00110.

2    Spacecraft Overview
Intelsat 9 is a SSL FS-1300 spacecraft that is capable of operating in the C-band and Ku-band
frequencies listed below and that provides service to North and South America and Europe.

                               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 SSL FS-1300 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


1
 Intelsat 9 will use the 11.7-12.2 GHz to serve Region 2 only. Accordingly, Intelsat’s operations
in this band will be consistent with the International Table of Frequency Allocations included in
47 C.F.R. § 2.106.



                                           Page 1 of 12


         Propulsion
         Telemetry, Command and Ranging
         Uplink Power Control
         Communications

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. Exhibits 1 and 2 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:

   1) Acquisition, processing and transmission of spacecraft telemetry data;

   2) Reception and retransmission of ground station generated ranging signals; and

   3) Reception, processing and distribution of telecommands.

The Intelsat 9 command and telemetry channel frequencies are shown in Exhibit 3. 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

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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 3.

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 3.

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:

    a) Compressed digital video

    b) High speed digital data

    c) 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

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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.

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 emissions.

6   Orbital Location
Intelsat requests that it be assigned the 29.5° W.L. orbital location for Intelsat 9. The 29.5° W.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   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 29.5° W.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 29.5° W.L.

Currently, there is no U.S. ITU filing for a satellite network that specifies operation in the
frequency band 11950 – 12200 MHz at the nominal orbital location of 29.5° W.L. Intelsat will
submit to the Commission Appendix 4 information for a new satellite network that utilizes these
frequency bands at the nominal orbital longitude of 29.5° W.L., to be forwarded to the ITU.
Intelsat is aware that Hispasat 1D and Hispasat 1E operate at 30.0W.L. and use a portion or all
of the 11950 – 12200 MHz band in one or more of their beams. However, they are not equipped
to transmit in the band 12112 – 12192 MHz over America using vertical polarization. Therefore,


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Intelsat 9 is not mutually exclusive with Hispasat satellites for operation in the band 12112 –
12192 MHz over America using vertical polarization.

8   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.

8.1 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.

8.2 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).

8.3 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 29.5 W.L. Intelsat 701 currently operates at 29.5°
W.L. To the extent Intelsat 9 and Intelsat 701 both operate at the 29.5° W.L. orbital location
prior to the de-orbit of Intelsat 701, Intelsat will take all the necessary steps to minimize the risk
of collision between Intelsat 9 and Intelsat 701.

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


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Intelsat 9 at 29.5° W.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.

8.4 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 42.4 kilograms of
fuel for this purpose. In its Second Report and Order in IB Docket 02-54, Mitigation of Orbital
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.

9      TC&R Control Earth Stations
Intelsat will conduct TC&R operations through earth stations near Atlanta, GA and Hagerstown.
MD. Additionally, Intelsat is capable of remotely controlling Intelsat 9 from the company’s
facilities in McLean, VA and Long Beach, CA.




2
    Mitigation of Orbital Debris, Second Report and Order, 19 FCC Rcd 11567 (2004).



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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                          November 10, 2016

      Alexander Gerdenitsch                                      Date
              Intelsat
     Manager, Spectrum Policy,
            Americas




                                         Page 7 of 12


                                        EXHIBIT 1

COMMUNICATION SUBSYSTEM UPLINK BEAM PARAMETERS
                           C-Band                                             Ku-Band
 Beam Name                               C-Band Americas   Ku-Band Brazil
                           Americas                                         Americas/Europe
 Schedule S Beam ID         AMHU             AMVU             BRHU              AEVU

 Frequency Band (MHz)     5925 - 6425      5925 - 6425     14020 - 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 Mexico   Ku-Band Mexico
                 Schedule S Beam ID           MXVU             MXHU

                 Frequency Band (MHz)      14240 - 14480    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 8 of 12


                                          EXHIBIT 2

COMMUNICATION SUBSYSTEM DOWNLINK BEAM PARAMETERS
                                                                                 Ku-Band
   Beam Name             C-Band Americas    C-Band Americas   Ku-Band Brazil
                                                                               Americas/Europe
   Schedule S Beam ID         AMHD              AMVD             BRVD              AEHD
   Frequency Band
                            3700 - 4200       3700 - 4200     11500 - 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 Mexico   Ku-Band Mexico
                    Schedule S Beam ID           MXVD             MXHD

                    Frequency Band (MHz)      11960 - 12200    11940 - 11980

                    Polarization                 Vertical        Horizontal
                    Maximum Beam Peak
                                                   54.2             54.2
                    EIRP (dBW)
                    Maximum Beam Peak
                    EIRP Density                   15.9             15.9
                    (dBW/4kHz)




                                           Page 9 of 12


                                       EXHIBIT 3

               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
                                 11702.5         11702.5     11702.5
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 10 of 12


                                          EXHIBIT 4
                             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
Americas, Europe AMHU          AMVU     AMHD     AMVD       ----             ----        ----     ----
                                           Ku-Band Beams
 N. America &
                      ----      AEVU      AEHD         ----       ----       ----        ----     ----
    Europe
     Brazil        BRHU          ----     ----       BRVD         ----       ----        ----     ----
    Mexico         MXHU         MXVU     MXHD        MXVD         ----       ----        ----     ----
   Southeast        ----         ----     ----        ----        ----       ----        ----     ----
                    ----         ----     ----        ----        ----       ----        ----     ----
   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 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            Americas          Horizontal       5945       CD01           Americas           Vertical        3720        36
  CU03            Americas          Horizontal       5985       CD03           Americas           Vertical        3760        36
  CU05            Americas          Horizontal       6025       CD05           Americas           Vertical        3800        36
  CU07            Americas          Horizontal       6065       CD07           Americas           Vertical        3840        36
  CU09            Americas          Horizontal       6105       CD09           Americas           Vertical        3880        36
  CU11            Americas          Horizontal       6145       CD11           Americas           Vertical        3920        36
  CU13            Americas          Horizontal       6185       CD13           Americas           Vertical        3960        36
  CU15            Americas          Horizontal       6225       CD15           Americas           Vertical        4000        36
  CU17            Americas          Horizontal       6265       CD17           Americas           Vertical        4040        36
  CU19            Americas          Horizontal       6305       CD19           Americas           Vertical        4080        36
  CU21            Americas          Horizontal       6345       CD21           Americas           Vertical        4120        36
  CU23            Americas          Horizontal       6385       CD23           Americas           Vertical        4160        36

  CU02            Americas           Vertical       5945        CD02            Americas        Horizontal       3720         36
  CU04            Americas           Vertical       5985        CD04            Americas        Horizontal       3760         36
  CU06            Americas           Vertical       6025        CD06            Americas        Horizontal       3800         36
  CU08            Americas           Vertical       6065        CD08            Americas        Horizontal       3840         36
  CU10            Americas           Vertical       6105        CD10            Americas        Horizontal       3880         36
  CU12            Americas           Vertical       6145        CD12            Americas        Horizontal       3920         36
  CU14            Americas           Vertical       6185        CD14            Americas        Horizontal       3960         36
  CU16            Americas           Vertical       6225        CD16            Americas        Horizontal       4000         36
  CU18            Americas           Vertical       6265        CD18            Americas        Horizontal       4040         36
  CU20            Americas           Vertical       6305        CD20            Americas        Horizontal       4080         36
  CU22            Americas           Vertical       6345        CD22            Americas        Horizontal       4120         36
  CU24            Americas           Vertical       6385        CD24            Americas        Horizontal       4160         36

  KU01        Americas / Europe      Vertical      14020        KD01        Americas / Europe   Horizontal      11477         36
  KU03        Americas / Europe      Vertical      14060        KD03        Americas / Europe   Horizontal      11517         36
  KU05        Americas / Europe      Vertical      14100        KD05        Americas / Europe   Horizontal      11557         36
  KU07        Americas / Europe      Vertical      14140        KD07        Americas / Europe   Horizontal      11597         36
  KU09        Americas / Europe      Vertical      14180        KD09        Americas / Europe   Horizontal      11637         36
  KU11        Americas / Europe      Vertical      14220        KD11        Americas / Europe   Horizontal      11677         36

  KU07        Americas / Europe      Vertical      14140        KD07             Brazil          Vertical       11597         36
  KU09        Americas / Europe      Vertical      14180        KD09             Brazil          Vertical       11637         36
  KU11        Americas / Europe      Vertical      14220        KD11             Brazil          Vertical       11677         36

  KU13             Mexico            Vertical      14260        KD13             Mexico         Horizontal      11960         36
  KU15             Mexico            Vertical      14300        KD15             Mexico         Horizontal      12000         36
  KU17             Mexico            Vertical      14340        KD17             Mexico         Horizontal      12040         36
  KU19             Mexico            Vertical      14380        KD19             Mexico         Horizontal      12080         36
  KU21             Mexico            Vertical      14420        KD21             Mexico         Horizontal      12120         36
  KU23             Mexico            Vertical      14460        KD23             Mexico         Horizontal      12160         36

  KU02             Brazil           Horizontal     14040        KD02             Brazil          Vertical       11740         36
  KU04             Brazil           Horizontal     14080        KD04             Brazil          Vertical       11780         36
  KU06             Brazil           Horizontal     14120        KD06             Brazil          Vertical       11820         36
  KU08             Brazil           Horizontal     14160        KD08             Brazil          Vertical       11860         36
  KU10             Brazil           Horizontal     14200        KD10             Brazil          Vertical       11900         36
  KU12             Brazil           Horizontal     14240        KD12             Brazil          Vertical       11940         36

  KU14             Mexico           Horizontal     14280        KD14             Mexico          Vertical       11980         36
  KU16             Mexico           Horizontal     14320        KD16             Mexico          Vertical       12020         36
  KU18             Mexico           Horizontal     14360        KD18             Mexico          Vertical       12060         36
  KU20             Mexico           Horizontal     14400        KD20             Mexico          Vertical       12100         36
  KU22             Mexico           Horizontal     14440        KD22             Mexico          Vertical       12140         36
  KU24             Mexico           Horizontal     14480        KD24             Mexico          Vertical       12180         36




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Document Created: 2017-02-08 14:30:21
Document Modified: 2017-02-08 14:30:21

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