Regional Jet 700 ER/LR (CRJ700)
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Flight Crew Overcame Equipment Problem
Human Factors; Environment - Non Weather Related; Aircraft
After a delay of almost 3 hours due to the issues with the navigation satellites applicable to the CRJ; we departed for ZZZ. On climbout; ATC cleared us direct ZZZ VOR. We turned toward what we thought was ZZZ VOR; but discovered we were getting a big discrepancy in the readings between our moving map on the MFD and the VOR signal. We were flying in green needles. As we were figuring this out ATC alerted us that our heading was incorrect for ZZZ VOR and assigned us a heading. Requested vectors for the remainder of the flight. Issues with the navigation satellites applicable to the CRJ. Training in how to use Auto Tune during GPS inop operations.
CRJ-700 Captain reported navigational problems related to the FMS and GPS issues.