Why concerning? It's nothing more than test/eval flights out of PAX, Md. VX-1, Air Test and Evaluation Squadron One, (AIRTEVRON ONE) is a United States Navy air test and evaluation squadron based at Naval Air Station Patuxent River, Maryland. Operational aircraft are assigned to VX-1 including the P-8A Poseidon, E-2D Advanced Hawkeye, MH-60R, and MH-60S. Additionally, VX-1 provides test and evaluation support for aircraft such as the KC-130J Hercules, E-6B Mercury, MQ-8B Fire Scout, and MQ-4C Triton Unmanned Aerial Vehicles.

The squadron operated two specially equipped P-3 aircraft that were equipped to collect data from the large sonobuoy fields used by the Sonobuoy Missile Impact Location System (SMILS) which supported the Navy's fleet ballistic missile program testing. The aircraft modifications enabled the aircraft to receive and record more sonobuoys, had a special timing system, and a data monitoring and quick look capability. The Air Force Advanced Range Instrumentation Aircraft could also operate with SMILS.

https://www.cnic.navy.mil/regions/ndw/installations/nas_patuxent_river/om/tenant_commands/air-test-and-evaluation-squadron--vx--1.html