CCD Observations Object YYYYMMDD.DDD(UT) Mag Obs. Seq./Chart Remarks TCPJ18154219+3515598 20170819.920 13.23V MRV Tycho-2 COAST; Err 0.03; 9th rebrightening ANDDX 20170819.934 12.69V MRV Tycho-2 COAST; Err 0.02; outburst Instrument: 35.6 cm f/11 SCT (COAST) Observer: Robert J. Modic (MRV), AAVSO