Parameters of selectable CCD area array. CCD . ... Pixel size /Photo area HxV . ... QE max . ... e - /mkJ/cm 2 . ... 3 CDS out, TI . ... 30 IRf . 25 typ . ... Typ 27 /21 . ... max 5-6mV . ... 1024 x 512 . ... max 5mV . ... 15 V/mkJ/cm 2 (760 nm) . ... MPP/0 . ... 27 typ IRf . ... 0.4 typ/ CDS/45 . ... 12 typ IRf 640nm . ... 3.8-4-4.2 min-typ-max values . ... 2 TE cooler ?U=12V, I=1.5 (max 2) A, T CCD =-45 ?-35 typ, Heat sink power load =19 (26 max) W. 3 D T=60 , U=2.5 V, I=0.7 A, P 2.5 W . ...

... A non-linear relationship is observed between the sky brightness on clear and overcast nights, with a change in behavior near the rural to urban landuse transition. ... The great variation in skyglow radiance observed from site-to-site and with changing meteorological conditions underlines the need for a long-term international monitoring program. he introduction of artificial light has caused an unprecedented disruption to the nighttime environment over large areas of the Earth. ... Data processing...

... 000, 1ґ12 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...