Erratum to ATel#12645, NIR photometry previous the optical flare of the Blazar PG1553+113

ATel #12647; L. Carrasco, E. Recillas, A. Porras, G. Escobedo, V. Chavushyan (INAOE, Mexico)
on 9 Apr 2019; 22:18 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

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In ATel#12645, by mistake the communication was send without a title. We sincerely apologize for this error in our part.