Once in a while Atlas shows different IP address than https://check.torproject.org . An example is illustrated below:
check.torproject.org shows: Congratulations. This browser is configured to use Tor.
Your IP address appears to be: 161.53.74.122
While Atlas shows:
Details for: UVic1100
General Overall information on the Tor relay
ConfigurationNickname
UVic1100
OR Addresses
142.104.68.93:443
Contact
undefined
Dir Address
Advertised Bandwidth
73.71 KB/s