Orbital Sciences Corporation

0678-EX-ST-2020

Status: Pending

WP9XVV
2020-04-27

Documents and Communications: [refresh]

DescriptionCategoryDate
Request to Modify WP9XVV Condition 1Text Documents2020-04-27
Grant E-mail Notification generated [May 7 2020]Correspondence2020-05-07
Application Form:
OET Special Temporary Authority Report
FEDERAL COMMUNICATIONS COMMISSION
APPLICATION FOR SPECIAL TEMPORARY AUTHORITY

Applicant Name
Name of Applicant:  Orbital Sciences Corporation

Address
Attention: DS LAW PLLC
Street Address: 1629 K St NW Ste 300
P.O. Box:
City: Washington
State: DC
Zip Code: 20006-1631
Country:
E-Mail Address: [email protected]

Best Contact
Give the following information of person who can best handle inquiries pertaining to this application:  
Last Name: Delahaye
First Name: Derrick
Title: RF Communications Systems Engineer
Phone Number: 703-406-5834

Explanation
Please explain in the area below why an STA is necessary:
This request is to modify condition 1 of FCC STA WP9XVV, FCC File No. 2185-EX-ST-2019, from “ISS + two weeks” to “ISS + 30 days”. In its application, Orbital Sciences Corporation (Orbital) stated that destructive re-entry for NG-13 was anticipated 31 days after separation from the International Space Station (ISS). However, the authorization authorized only two weeks from departure from the ISS. The CRS-2 PMO requests an additional 16 days after separation, from “ISS + two weeks” to “ISS + 30 days”, as explained in the attached exhibit.

Purpose of Operation
Please explain the purpose of operation:  Spacecraft telemetry links for monitoring of Cygnus spacecraft state of health. Telemetry links include: 1) S-Band Single Access (SSA) and S-Band Multiple Access (SMA) spread spectrum return link operation with NASA TDRS. 2) High data rate downlink operation with mission Ground Stations 3) A Cygnus to ISS link for proximity operations will be used during the mission. The transmitters supporting these links are described below: The Cygnus spacecraft configuration will comprise of two L-3 Cincinnati Electronics (L-3 CE) transmitters (primary & redundant-backup) operating at 2287.5 MHz in TDRS mode and it will also provide telemetry downlinks at 3 Mbps and 6 Mbps. Two additional transmitters (primary & redundant-backup), also procured from L-3 CE, operating at 2203.2 MHz will be used for the Cygnus to ISS proximity communication link. These transmitters will meet all STA parameters and conditions as compiled with previous CRS STA applications.

Information
Callsign: WP9XVV
Class of Station: MO
Nature of Service: Experimental

Requested Period of Operation
Operation Start Date: 01/07/2020
Operation End Date: 07/07/2020

Manufacturer
List below transmitting equipment to be installed (if experimental, so state) if additional rows are required, please submit equipment list as an exhibit:  
Manufacturer Model Number No. Of Units Experimental
L-3 Cincinnati Electronics 6354-PF4520-05 2 Yes
L-3 Cincinnati Electronics 6354-PF4520-06 2 Yes

Certification
Neither the applicant nor any other party to the application is subject to a denial of Federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. Section 862, because of a conviction for possession or distribution of a controlled substance. The applicant hereby waives any claim to the use of any particular frequency or electromagnetic spectrum as against the regulatory power of the United States because of the prvious use of the same, whether by license or otherwise, and requests authorization in accordance with this application. (See Section 304 of the Communications Act of 1934, as amended.) The applicant acknowledges that all statements made in this application and attached exhibits are considered material representations, and that all the exhibits part hereof and are incorporated herein as if set out in full in this application; undersigned certifies that all statements in this application are true, complete and correct to the best of his/her knowledge and belief and are made in good faith. Applicant certifies that construction of the station would NOT be an action which is likely to have a significant environmental effect. See the Commission's Rules, 47 CFR1.1301-1.1319.
Signature of Applicant (Authorized person filing form): Derrick Delahaye
Title of Applicant (if any): RF Communications Systems Engineer
Date: 2020-04-27 00:00:00.0

Station Location
City State Latitude Longitude Mobile Radius of Operation
North      West      Spacecraft-350km altitude-51.6 degrees inclination
Datum:  NAD 83
Is a directional antenna (other than radar) used?   No
Exhibit submitted:   No
(a) Width of beam in degrees at the half-power point:  
(b) Orientation in horizontal plane:  
(c) Orientation in vertical plane:  
Will the antenna extend more than 6 meters above the ground, or if mounted on an existing building, will it extend more than 6 meters above the building, or will the proposed antenna be mounted on an existing structure other than a building?   No
(a) Overall height above ground to tip of antenna in meters:  
(b) Elevation of ground at antenna site above mean sea level in meters:  
(c) Distance to nearest aircraft landing area in kilometers:  
(d) List any natural formations of existing man-made structures (hills, trees, water tanks, towers, etc.) which, in the opinion of the applicant, would tend to shield the antenna from aircraft:
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
Modified 2203.20000000- MHz MO 14.550000 W 8.710000 W M 0.00008000 % 5M93G1D SQPN
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
Modified 2287.50000000- MHz MO 23.990000 W 5.820000 W M 0.00018000 % 6M16G1D SQPN
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
Modified 2287.50000000- MHz MO 15.140000 W 3.670000 W M 0.00018000 % 6M16G1D SQPN
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
Modified 2287.50000000- MHz MO 15.140000 W 3.670000 W M 0.00018000 % 3M00G1D SQPSK
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
Modified 2287.50000000- MHz MO 15.140000 W 3.670000 W M 0.00018000 % 4M98G1D SQPSK

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