The directory https://epncb.oma.be/pub/station/real_time/ contains the
results of a regular monitoring done by the EPN Central Bureau
(typically once a day) of the content and the latency of the EPN
real-time data streams available from www.euref-ip.asi.it (ASI),
www.euref-ip.net (BKG), and www.euref-ip.be (ROB).

For streams in the RTCM 3 format, the station coordinates, antenna and receiver 
description, and the tracked constellations are checked.

More details are provided in 
https://epncb.oma.be/_networkdata/data_access/real_time/metadata_monitoring.php

For each broadcaster (BBB), the following files are maintained
--------------------------------------------------------------

1) monitor_BBB.ant

   Agreement of the antenna/radome information contained in the stream wrt  
   the site log information. Streams with erronous information are indicated 
   by an "*".

   
2) monitor_BBB.rec

   Agreement of the receiver information contained in the stream wrt 
   the site log information. Streams with erronous information are indicated 
   by an "*".   

   
3) monitor_BBB.coord

   Agreement of the coordinates contained in the stream (STR) wrt the best
   station cooordinates EUREF has available for the station available from
   https://epncb.oma.be/pub/station/coord/EPN/RTCM.CRD.
   As the stream coordinates are given with respect to the ARP (Antenna Reference 
   Point), the coordinates in RTCM.CRD (which refer to the station marker) will be 
   converted to the ARP before comparing them with the coordinates in the stream.
          
   All values are given in meters.
   The antenna height in the stream is also compared to the antenna height 
   in the site log.

   Streams with erronous information are indicated by an "*".


4) monitor_BBB.const

   Satellite constellations for which observations are found in the stream. 
   Including information on MSM type (if applicable).


5) monitor_BBB.latency

   Latency of the code/phase observations. This latency is the 20-sec average
   obtained by comparing the GPS time of the received observation with the UTC
   time of the EPB CB server (corrected for leap seconds).