Powershell: Get SharePoint List

Need to get a sharepoint list but don't have access to the server -- I just have a logon that is able to browse to the list. In this example the list is named "Server Catalog." I retrieved the entire list and then selected entries with a specific value in a field named "DeploymentStatus"

$credential = get-credential
$uri = "http://tskm/apps/systemscatalog/_vti_bin/lists.asmx?WSDL"
$listName = "Server Catalog"             
            
# Create xml query to retrieve list.             
$xmlDoc = new-object System.Xml.XmlDocument            
$query = $xmlDoc.CreateElement("Query")            
$viewFields = $xmlDoc.CreateElement("ViewFields")            
$queryOptions = $xmlDoc.CreateElement("QueryOptions")            
$query.set_InnerXml("FieldRef Name='Full Name'")             
$rowLimit = "1000"            
            
$list = $null             
$service = $null              
            
try{            
    $service = New-WebServiceProxy -Uri $uri  -Namespace SpWs  -credential $credential  # -UseDefaultCredential
}            
catch{             
    Write-Error $_ -ErrorAction:'SilentlyContinue'             
}

if($service -ne $null){            
    try{                    
        $list = $service.GetListItems($listName, "", $query, $viewFields, $rowLimit, $queryOptions, $null)
    }            
    catch{             
        Write-Error $_ -ErrorAction:'SilentlyContinue'            
    }            
}

$output = $list.data.row

foreach ($item in $output) {
 if ($item.ows_DeploymentStatus = "Production") {
  [string]$server=$item.ows_Title
  [string]$status=$item.ows_DeploymentStatus
  "$server - $status"
  }
 }