If you are a member of the general public:
SSDP is Simple Service Discovery Protocol typically built-in to many network routers and gateways. It is critical that home routers are updated to the latest firmware to address the issues seen. These UDP based services can be used in reflective denial of service attacks. SSDP is the search protocol for UPnP.
If you are a member of the security community:
You can contact the ssdp-scan /at/ puck.nether.net to obtain the raw data. It is available for re-use in your reporting.