Cross match algorithm: for better object catalogue analysis Catalogue column generator: allows you to compute new catalogue columns via algebraic expressions. The integrated line flux sensitivity for an unresolved line is in principle independent of the resolution for an FTS. For point source observations, a sparse map covering the full FTS field of view is also generated. Select HEALPix grid in the corresponding menu (Overlay -> HEALPix grid) 5.25 It seems that the progressive mode requires more memory ! This is true. The brightest source visible in this snapshot, just outside the unvignetted region, ~ 1′ South of the centre, has flux density of ~ 50 mJy. It is important to note that this standard dark sky measurement is using SPIRE calibration time and thus it is not charged to the observers. This effectively defines an avoidance angle for the satellite orientation, and hence it is a scheduling constraint.
According to the HEALPix principle, the sky is divided in 12 equals area rhombs. All scan map sensitivity values are for nominal scan speed of 30′′/s. Figures for 60′′/s scale as .An important aspect of the photometer noise performance is the knee frequency that characterises the 1∕f noise of the detector channels. The current sensitivity (black line) is estimated from repeated observations of dark sky and calibration objects, in comparison to the previous values (dashed grey line) estimated at the start of the mission. A number of important points concerning the FTS sensitivity should be noted. Use the button «assoc.» which has replaced the «blink» one in the previous Aladin versions.In the association control window, select «mosaic» mode instead of «blink» mode.
The properties of each plane give access to the specifical FITS header. The density, size and thickness of these segments can be controlled via the Propertie panel associated to the polarisation stack plane; — a false color view based on polarisation angles; — a false color view based on polarisation intensities. The coverage maps depend on the observational day, and hence the holes in the maps, due to dead bolometers, change from observation to observation. But MOC is used for describing sky coverage, and HiPS is used for accessing data (pixels, catalog sources…) 6.3 * Why do I have to use MOC rather than other coverage method?