Amendment to STA Marc 2014

1004-EX-ST-2013 Text Documents

BlackSky Global, LLC

2014-03-19ELS_147012

                      FURTHER AMENDMENT TO APPLICATION FOR
      EXPERIMENTAL SPACE STATION AUTHORITY (FILE NO. 1004-EX-ST-2013)



       BlackSky, LLC (“BlackSky”) hereby amends its above-referenced pending
application for experimental space station authority. BlackSky notes that it has filed a
companion experimental earth station application to the instant request. 1

        On the basis of further analysis of anticipated system performance and
equipment functionality, BlackSky has determined that some technical details outlined
in its space station application should be further updated. BlackSky is also submitting
herewith a revised narrative to the above-referenced application and it has made the
corresponding changes to the OET’s STA form.

       BlackSky amends its pending experimental space station application in the
following ways:

      1. Manufacturer section: the proposed UHF Radio will be manufactured by L3
         Communications, as stated in the original version of the application. The model
         is the Cadet-UHF radio.
      2. Station location section: Modulating signal for the 401-402 MHz signal is being
         reverted to OQPSK.

       Finally, as a result of a modified launch schedule beyond its control, BlackSky
will not require the subject authority prior to January 15, 2015. Accordingly, it is herein
also amending its application to seek authority for the six month period of January 15,
2015 to July 15, 2015.




1   File No. 1136-EX-ST-2013.


                                                                             Amended Dec. 20, 2013 and
                                                                                      March 19, 2014
       REQUEST FOR EXPERIMENTAL SPECIAL TEMPORARY AUTHORITY

       BlackSky, LLC (“BlackSky”) herein requests experimental Special Temporary
Authority (“STA”) to demonstrate and test the use of two microsatellites in the manner
described below.


Purpose of Special Temporary Authority.

        BlackSky seeks to test, develop, and demonstrate the efficacy and design of a newly
configured microsatellites, including associated software applications, relative to their
ability to provide high-resolution remote sensing in the Earth Exploration Satellite Service
(“EESS”). To this end, BlackSky seeks experimental STA to launch, test, and demonstrate 1
two prototype satellites – Scout 1 and Scout 2 – anticipated to be launched and ready for
testing on approximately January 15, 2015,2 for a period of up to six (6) months.

      The launch and operation of the subject microsatellites on the basis of such
authority will permit BlackSky the opportunity to assemble critical feedback both as to the
performance of the microsatellites themselves and the overall architecture of the proposed
imaging and communications system.

       BlackSky brings to the Commission’s attention that it has received authority to
operate the Scout 1 and Scout 2 microsatellites from the National Oceanographic and
Atmospheric Administration (“NOAA”), the public summary of which it is uploading to
the application docket. Additionally, BlackSky is submitting herewith an analysis it
performed to satisfy the Commission’s Orbital Debris Assessment requirements. Finally,
BlackSky has also rendered the application data in an exhibit formatted to facilitate its
analysis by the NTIA.


Operational Description.

      BlackSky is developing plans to deploy two satellites intended to demonstrate the
technology and to experiment with configurations and processes. The satellites are
proposed for launch to Low Earth Orbit on a Roscosmos Soyuz launch vehicle. Scouts 1
and 2 will be deployed from the Soyuz upper stage into a planned circular orbit of 600 x


1 BlackSky has followed herein the Commission’s policy articulated regarding the seeking of STA for such
purposes. See Guidance on Obtaining Experimental Authorizations for Commercial Space Launch Activities,
Public Notice, DA 13-446 (rel. Mar. 15, 2013).
2 Because BlackSky is submitting the instant application well in advance of when it needs such authority

and of the proposed launch of the subject microsatellites, it is requesting a start date of January 15, 2015,
with the possibility that the microsatellites may be ready for testing later than, but not earlier than, that
date.


600 km at 97.8 degrees inclination approximately 1 week after the primary payload’s
(Meteor) separation from the launch vehicle.

       Once in orbit, the demonstration and testing will focus on each satellite’s
subsystems and their collective interaction, as well as the ability to communicate with and
control the satellites, test the imaging capability of the satellites, and ascertain the actual
throughput of imaging data from the satellite to ground stations3 and the BlackSky
network operations center.

        The technical details of the space segment are as follows:


Scout 1 and 2 frequency characteristics:

Primary Payload Downlink:               8080 MHz ± 80.0 MHz
Secondary TT&C Downlink:                401-402 MHz
Primary TT&C Uplink4:                   2071.88MHz ± 49kHz
Secondary TT&C Uplink:                  449.75 – 451.25 MHz

Scout 1 and 2 radio characteristics:

Frequencies             Manufacturer                    Model Number
X-Band                  Syrlinks                        EWC22
S-Band                  Quasonix                        QSX-RDMS-T-1100-AB-RS
UHF                     L3 Communications               Cadet-UHF

Scout 1 and 2 antenna characteristics:

X-Band (Tx):
      15 dBi patch antenna, 18 degree half power beamwidth, nadir pointing
      45° RHCP in horizontal orientation; 45° RHCP in vertical orientation
S-Band (Rx):
      6 dBi patch antenna, 90 degree half power beamwidth, nadir pointing
      45° RHCP in horizontal orientation; 45° RHCP in vertical orientation
UHF (Tx/Rx):
      2.15 dBi non-directional monopole, 156 degree half power beamwidth
      Linear polarization


3 BlackSky notes that it has submitted a corresponding application for authority to operate ground
stations that will communicate with Scout 1 and Scout 2 for communications and control purposes under
FCC File No. 1136-EX-ST-2013.
4 BlackSky is providing in this exhibit the proposed uplink frequencies only as informational. These

frequencies are the subject of a separate application for experimental earth station authority. See n.3.

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24-hour contact details:

       BlackSky maintains a 24-hour, 7-day-per-week hotline at its Mission Control
Center, which can be reached at the following telephone number for any interference
issues: (425) 998-7370.




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Document Created: 2014-03-19 14:46:09
Document Modified: 2014-03-19 14:46:09

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