[Observium] Diff. b/t location sign and circle sign?

What is difference in location sign and circle sign on observe graph?

Location Sign :- [cid:image001.png@01D0F2E9.76F4F090]

Circle Sign :- [cid:image002.png@01D0F2E9.76F4F090]

............. With Thanks and Regards, Chaman Rathee MoB No. :- 9560055816

[Fabrikam]

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