Crj-700 captain reported navigational issues relating to the FMS and GPS problems.

Attributes
ACN	1653660
Time
Date	201906
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 700 ER/LR (CRJ700)
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	GPS & Other Satellite Navigation
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types

Narrative:

After delays due to difficulties with the navigational satellites applicable to the crj we departed ZZZ for ZZZ1. While in the climb with center; we were cleared direct ZZZ VOR. We turned toward what we thought was ZZZ VOR; but discovered a big discrepancy (100+ miles) between our moving map position on the mfd and the VOR signal. Pilot flying was operating in white needles with auto tune on. Pilot monitoring switched from white needles with auto-tune on to green needles to verify the VOR signal. As we were noticing the discrepancy; ATC alerted us that our heading was incorrect for ZZZ VOR and assigned us a heading. Requested radar vectors for the remainder of the flight. Issues with the navigation satellites applicable to the crj. The aircraft seemed to be having particular difficulty establishing it's location even in auto tune mode. Creating a procedure to determine if auto tune is working on the ground to establish a somewhat accurate position for the aircraft before departing enroute.

Original NASA ASRS Text

Title: CRJ-700 Captain reported navigational issues relating to the FMS and GPS problems.

Narrative: After delays due to difficulties with the navigational satellites applicable to the CRJ we departed ZZZ for ZZZ1. While in the climb with Center; we were cleared direct ZZZ VOR. We turned toward what we thought was ZZZ VOR; but discovered a big discrepancy (100+ miles) between our moving map position on the MFD and the VOR signal. Pilot Flying was operating in white needles with Auto Tune on. Pilot Monitoring switched from white needles with Auto-Tune on to green needles to verify the VOR signal. As we were noticing the discrepancy; ATC alerted us that our heading was incorrect for ZZZ VOR and assigned us a heading. Requested radar vectors for the remainder of the flight. Issues with the navigation satellites applicable to the CRJ. The aircraft seemed to be having particular difficulty establishing it's location even in Auto Tune mode. Creating a procedure to determine if Auto Tune is working on the ground to establish a somewhat accurate position for the aircraft before departing enroute.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.