J. Ripa et al.Ahmad, S.S.AhmadBarrillon, P.P.BarrillonBrandt, S.S.Brandt C. Budtz-Jørgensen Castro-Tirado, A.J.A.J.Castro-TiradoChang, S.-H.S.-H.ChangChang, Y.-Y.Y.-Y.ChangChen, C.R.C.R.ChenPISIN CHENChoi, H.S.H.S.ChoiChoi, Y.J.Y.J.ChoiConnell, P.P.ConnellDagoret-Campagne, S.S.Dagoret-CampagneEyles, C.C.EylesGrossan, B.B.GrossanJIAN-JANG HUANGHuang, M.-H.A.M.-H.A.HuangJeong, S.S.JeongJung, A.A.JungKim, J.-E.J.-E.KimKim, M.-B.M.-B.KimKim, S.-W.S.-W.KimKim, Y.-W.Y.-W.KimKrasnov, A.S.A.S.KrasnovLee, J.J.LeeLim, H.H.LimLin, C.-Y.C.-Y.LinLinder, E.V.E.V.LinderLiu, T.-C.T.-C.LiuLund, N.N.LundMin, K.W.K.W.MinNam, J.-W.J.-W.NamPanasyuk, M.I.M.I.PanasyukPark, I.H.I.H.ParkReglero, V.V.RegleroRodrigo, J.M.J.M.RodrigoSmoot, G.F.G.F.SmootSuh, J.-E.J.-E.SuhSvertilov, S.S.SvertilovVedenkin, N.N.VedenkinMIN-ZU WANGI. Yashin2019-12-262019-12-262013https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887115963&doi=10.1051%2feas%2f1361093&partnerID=40&md5=c76460b8d251c15e2dc9195d787e3369The Ultra-Fast Flash Observatory (UFFO), which will be launched onboard the Lomonosov spacecraft, contains two crucial instruments: UFFO Burst Alert & Trigger Telescope (UBAT) for detection and localization of Gamma-Ray Bursts (GRBs) and the fast-response Slewing Mirror Telescope (SMT) designed for the observation of the prompt optical/UV counterparts. Here we discuss the in-space calibrations of the UBAT detector and SMT telescope. After the launch, the observations of the standard X-ray sources such as pulsar in Crab nebula will provide data for necessary calibrations of UBAT. Several standard stars will be used for the photometric calibration of SMT. The celestial X-ray sources, e.g. X-ray binaries with bright optical sources in their close angular vicinity will serve for the cross-calibration of UBAT and SMT. © EAS, EDP Sciences 2013.conference paper10.1051/eas/13610932-s2.0-84887115963