Uncertainties are a bit different in counting experiments - this lesson explains how. It also covers averaging and how that affects uncertainties. Back Main Uncertainties Page .

Session 9 - The Hubble Deep Field. ... The Hubble Deep Field (HDF) experiment is a unique project to explore at unprecedented depth and angular resolution the faintest and most distant galaxies. ... This allows study of broad-band spectral energy distribution, morphology and number count statistics for galaxies that span the largest, if not the whole, time interval of galaxy history. ... Here we present preliminary number counts, color-magnitude and color-color diagrams for the 4 HDF frames. ...

... Up: Real-Time Systems . ... The Rossi X-ray Timing Explorer ( RXTE ) spacecraft contains a large Proportional Counter Array (PCA) experiment which produces high count rates for many X-ray sources. ... This allows opportunity for some serious real time interpretation and decision making by the experiment controller, duty scientist, and Guest Observer (GO), if present. ... This paper briefly describes the available Science Monitoring subsystem display options. ...

1 http://wordpress.org/?v=3.4 http://hea-www.harvard.edu/AstroStat/slog/2008/dark-matter-modulation/comment-page-1/#comment-214 vlk Fri, 25 Apr 2008 13:41:28 +0000 http://hea-www.harvard.edu/AstroStat/slog/?p=279#comment-214 Indeed, it is the likelihood of systematic effects that will control our belief in the result I am not sure, Count Iblis, that [1] is all that persuasive -- all it may mean is that the relevant effect was not identified with either experiment. ...

Photon/Particle Counting Image Measurement System : PIAS-TI . The PIAS-TI is an extremely sensitive image measurement device developed for imaging and quantification in ultimate levels with an extremely small number of photons, electrons and charged particles. ... The PIAS-TI is a measuring system that makes use of the technology of the photon counter to detect the input positions of individual photons or particles, and accumulate them to create an image. ...

... telescope position . Veena and john mathews looked for meteor flashes on the moon using alfa (also see t2874 meteors on moon at 430). ... beam 3b was turned off .. it was dead . beam 6b has been bad.. but it think it had recovered (check cal deflection). jpl horizon ephemeris file was used to track the moon. one 6.4 MHz band centered at 1415 Mhz . ... Tsys was about 80 K off the moon. file 121, 431.8MHz birdies starts drifting to higher frequency. at file 149 it has moved about 1 MHz. ...

. Fig.1 . Auroral oval crossing in postmidnight-morning sector. In the middle - plasma sheet protons, at the sides - ring current protons. The five panels - count rates at different directions to the satellite rotation axis. Fig.2 . Auroral electrons above the nightside oval on the left, and above the dayside oval - on the right. Fig.1 . Fig.2 .

Orbital data : INTERBALL AZ GSE and GSM cartesian coordinates, GSE cartesian velocity (once per 10 minutes). ... Magnetic field data from IMAP experiment. Magnetic fileld absolute value and magnetic field index (the difference between absolute value and model value), status flag. ... Counts of H+ and O+ ions are accumulated during one spin period by detectors D6 (antisunward looking), D8 (spin plane), D10 (sunward looking) of TRICS2 subsystem (1.0-30 keV). ... TRICS1, TRICS2, TRICS3 subsystems: . ...