2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127984We present non-LTE diagnostics of the filament observed by SOHO/SUMER on May 27, 2005 in the whole Lyman series. The filament was situated close to the disk center. The Ly_alpha observations were carried out with normal voltage of detector A. The slit was placed at the central part of the detector -- outside the Ly_alpha attenuator. Therefore, the observed profiles of this line could be calibrated reliably.In press,"Physics of Chromospheric Plasmas" (Coimbra), ASP 368, 359 (2007)Astrophysicstext