To leave the frames behind, click here . 430-MHz Gregorian . ... RFI Situation . ... Receiver History . ... 422-442 MHz . ... For the current frequency v time 430-MHz RFI plot from the Arecibo "hill-top" monitoring system, click here . For the current frequency v time 430-MHz RFI plot (with band-pass correction) from the Arecibo "hill-top" monitoring system, click here . For the current daily rms/mean v frequency 430-MHz RFI plot from the Arecibo "hill-top" monitoring system, click here . ...

... As of this writing, both WFPC2 and FOC have capabilities in this area. Two new instruments, the Near-Infrared Camera and Multi-Object Spectrograph (NICMOS) and the Space Telescope Imaging Spectrograph (STIS) should be installed in HST during the second service mission in Early 1997. ... Table 1.1: Comparison of WFPC2, FOC, NICMOS, and STIS Instrumental Imaging Parameters. ... At longer wavelengths NICMOS must be used; at shorter wavelengths either WFPC2, FOC, or STIS must be used. ...

... Parameters . Filters . ... Direct images . ... The SCORPIO-2 project: . Spectral Camera with Optical Reducer for Photometric and Interferometric Observations - 2 . The broad-band glass filters made in SAO RAS are used for the observation in the Johnson-Cousins (UBVRI) photometric system in the direct images mode. The glass filters transmission curves are shown by solid line. ... The filters transmission curves of the `comets' filters measured with the SCORPIO-2 in the F/4 beam. ...

... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seco