|**Survey**|**Duration**|**Start Date and time**|**End Date**|
|reader-demographics-en-pilot |~48 hours|2019/2/27 @ 1230 UTC (730 EST)|2019/2/28 @ around the same time|
The goal is to achieve ~500 responses in this pilot. Based on past surveys (T209882#4867368), this should be a 0.004 coverage value for 24 hours.
```lang=php
enwiki => [
'enabled' => true,
"name" => "reader-demographics-en-pilot",
"type" => "external",
"description" => "Reader-demographics-1-description",
"link" => "Reader-demographics-1-link",
"question" => "Reader-demographics-1-message",
"privacyPolicy" => "Reader-demographics-1-privacy",
"coverage" => 0.004, // 1 out of 250
"instanceTokenParameterName" => "entry.1791119923",
"platforms" => [
"desktop"=> ["stable"],
"mobile"=> ["stable"]
],
]
```