Exhibit 99.1
AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13D
 
The undersigned hereby agree as follows:

(1)Each of them is individually eligible to use the Schedule 13D to which this Exhibit is attached, and such Schedule 13D is filed on behalf of each of them; and

(2)Each of them is responsible for the timely filing of such Schedule 13D and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.
 
Date: November 9, 2022

Lockheed Martin Corporation
By:/s/ H. Edward Paul III 
 Name:H. Edward Paul III 
 Title:Vice President and Controller 
Astrolink International LLC
By:/s/ H. Edward Paul III
Name:H. Edward Paul III
Title:Vice President