ARNICA (ARcetri Near Infrared CAmera) is the imaging camera for the near infrared bands between 1.0 and 2.5 m that Arcetri Observatory has designed and built as a general facility for the Tirgo telescope. The scale is 1 arcsec per pixel, with sky coverage of more than 4 arcmin times 4 arcmin on the NICMOS 3 (256 X 256 pixels, 40 m side( detector array. ... Arnica progress report : performance and technical results obtained in the last years at Tirgo , Not , and Vatt . ... Arnica and Longsp data: . ...