I have just noticed on Anatoli Zak's review of the Persona satellite programme (
http://www.russianspaceweb.com/persona.html) that he comments that the satellite is also known as Kvarts.
I wonder whether Persona is the equivalent to a Yantar "family" designator and Kvarts relates to the specific satellite type - like Kobalt-M? This might make sense, especially since there have been references to Persona-1 and a future Persona-2 variant.
Any thoughts, rebuttals please?
Here is a document claiming that Persona is based on the Resurs-UKP platform, whatever that is.
In the illustration posted by Danderman, Cosmos 2506 is referred to as "Persona-3". Maybe I am being pedantic here (or it's just the way that the Russians write sequential numbers), but I see Cosmos 2506 as being the third Persona-1/Kvarts satellite to be launched, with Persona-2 thought to be under development and Persona-3 not previously rumoured.
Not heard of the Resurs-UKP platform before: Persona-1 has always looked to be a more massive beastie than the Yantar-derivatives used for the Resurs-P programme.