Date: 202103
Local time of day: 1201-1800
Location: ZZZ.ARTCC, US
Aircraft: Small Transport
Flight plan: IFR
Flight phase: Cruise
Airspace: Class A ZZZ
ATC / advisory: Center ZZZ
Second aircraft: Military
Reporter organization: Government
Reporter function: Enroute
Reporter qualification: Air Traffic Control Fully Certified
Human factors: Communication Breakdown; Situational Awareness; Troubleshooting
Second reporter function: Enroute
Anomaly: ATC Issue All Types; Airspace Violation All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy
Detector: Automation Air Traffic Control; Person Air Traffic Control
When detected: In-flight
Result: General None Reported / Taken
Contributing factors: Environment - Non Weather Related; Airspace Structure; Human Factors; Software and Automation
Primary problem: Environment - Non Weather Related

Narrative: I had a civilian jet at 6;000 feet on a vector to miss ZZZ west airspace that was hot 6;000 feet and above. He was in ZZZ central that I was showing active 8;000 and above. Turns out ZZZ central was active 060 and above.Make sure airspace is coordinated correctly and is reflected in airspace status.


Second narrative: I walked into the aisle to split 3 sectors out to a different position but the current radar working it all/receiving the briefing from the shift leaving for the day said he needed a D-side now.  I sat on the D-side and was given a verbal briefing when he had time.  I did not know the previous shift changed to bottom limits of a MOA to an altitude that is usually reserved for summer dates; 8;000 feet; and is frequently displayed wrong because the default in the EDST is 080 not 060.  The Radar Controller cleared aircraft into the MOA/ATCAA with normal winter base limits of 6;000 feet.  I received a call from XX [Sector] asking if he can have control of a departure to climb to 7;000 feet and I questioned his request.  I asked the radar is the ZZZZZ airspace normal altitudes; he said yes and I explained to the controller that the base limits should be 6;000 feet not 8;000 feet.  I asked the XX [Sector] Controller if something else was coordinated from the day shift on a higher altitude limit and he said no.  I only assumed it was displayed incorrectly as 080 because it happens more often than not in winter time.  Come to find out; the day shift controllers did coordinate the base altitudes of 8;000 feet; that information was given to the Radar Controller I was working with as part of the briefing.  I was unaware of this information at the time this event happened.During the Summer months the MOA has a section of airspace with a base of 8;000 feet to allow for arrivals and departures out of a regional airport that sees most of its traffic during the summer.  In the winter time this base altitude is 6;000 feet.  In the EDST (Enroute Decision Support Tool) to activate the airspace; the default is 8;000 feet.Because the default is 8;000 feet; it is a REGULAR occurrence that 080 is incorrectly displayed.  Controllers open the airspace activation menu; change the Top altitude and hit enter.  There should be a procedure; an additional memory aid or something else that happens if we change the base altitudes outside of the normal because it cannot be relied upon during the winter months that it is accurate.  I questioned it because it happens all the time and in this situation; I was incorrect is saying the base was 6;000 feet.  In the X years I have worked here; this is the first time that during the winter months I have been incorrect when saying the base should show 6;000 feet; not 8;000 feet.


Synopsis: ATC Controllers reported an airborne traffic conflict due to changes to the base altitude of the restricted airspace. A Controller stated it is difficult to keep informed of changes and stay proficient because controllers are working several different positions for short periods.