If you are connected to the the 'another vCenter', you can use the REST API.
Something like this for example
Connect-CisServer -Server $global:DefaultVIServer.Name | Out-Null
$sub = Get-CisService -Name 'com.vmware.content.subscribed_library'
$sub.list() | ForEach-Object -Process {
$sub.get($_.Value) | Select name,last_sync_time,
@{N='AutoSync';E={$_.subscription_info.automatic_sync_enabled}}
}
Disconnect-CisServer -Confirm:$false