Searched the schedule for the following source names: MRK 421, Mrk 421, Mkn 421, Mkn421, Mrk421, 1959, V404, 1H 0323+342, RXJ0324.6+3410, RGBJ0324+3410, SWIFTJ0325.3-5916, Crab, CRAB, Mrk 501, Mkn 501, Mrk501, Mkn501, 1215, RBS1093, 1553, 1426, BL Lac, 1ES 0647+250, B2 1811+31, I Zw 187, 1ES 1727+502, LS I +61 303, LSI +61 303, J0632, TXS 0506+056, TXS 0210+515, IVS B0210+515, 1ES 2344+514, 1ES2344+514

None of the sources was found in the Swift schedule.

The full schedule can be found <a href='../scheduling/2023/01/03/swift.schedule.formated'>here</a>