... Near Infrared Camera and Multi-Object Spectrometer Instrument Handbook for Cycle 17 > Appendix C: Bright Object Mode > C.1 Bright Object Mode . ... The time taken to read through a quadrant on the array sets a fundamental limit on the fastest electron collection rate which can be achieved by resetting all the pixels. ... In BRIGHTOBJ mode, an ACCUM sequence of operations is performed on one pixel in each quadrant at a time. ... The time required to take a BRIGHTOBJ mode exposure can be rather long. ...

Target: Various bright stars Date: Night of 2011-01-03 - 2011-01-04 Time: See Unix timestamp in file name Telescope: CDK125 Camera: Nikon D3s Filters: None Exposure time: Various - see file name Observer: John Kielkopf Processing: John Kielkopf Images are jpgs from the camera rotated in Gimp to put N up and W to the right. If the exact time for an image is needed, extract it from the timestamp in the file name. ...

adapted from Observe: Eclipses, published in 1979 by the Astronomical League and "Safe Solar Filters," by B. Ralph Chou, Sky and Telescope, August 1981) . ... Tape TWO pieces of film together into a sandwich, and tape this over the opening in the cardboard. ... The cardboard frame will act as a shade from the bright Sun, while you safely observe through the film sandwich. ... Undeveloped film is not safe. ... tape . ... At the end of one of the tubes, tape the aluminum foil, and make a tiny pinhole. ...

... XMM-Newton SOC Home Page Conferences & Meetings . ... Data Analysis SAS News What is SAS? How to use SAS SAS Workshops SAS Version Changes Download and Install SAS Science Simulator (SciSim) . ... EPIC cameras optical loading . ... The PI is invited to cross-check the expected X-ray flux from the target source (and from any other potentially bright source in the target field of view), or to provide the SOC with her/his own estimate, if not originally specified in the proposal. ...

... A1 centered at 2500 angstroms with a width of 1200 angstroms . ... UGC 6151 is a Low Surface Brightness Galaxy which is at the center of the first deep survey field taken with UIT. The total exposure time was 1370 seconds out of a planned 2000 through the A1 filter. ... The galaxy has very faint outer spiral structure and tightly wound inner spiral structure. The outer spiral structure should be more prominent at UV wavelengths if star formation is occurring out there. ...

Next: AXAF Recipes Up: ROSAT HRI Recipes Previous: Quantum Efficiency Correction (a.k.a. For some observations, a significant amount of data may have been rejected during SASS processing because the background level was higher than the calculated threshold for rejection. ... REJECTED EVENTS . ... The recipe will allow the user to include rejected events in the generation of a new qpoe file and filter on the background level. ... This creates a qpoe file with standard + rejected events. ...

... Images of Titan by the Hubble Space Telescope (HST) are very small in size and have very low spatial resolution. Special methods of image processing are required to extract information from these images. ... Currently, in searching for features on Titan's disk imaged by the HST PC1 detector, we are faced with two problems: (1) Low spatial resolution (Figure 1). ... The two aforementioned problems necessitate processing Titan images by special methods to extract information for analysis. ...

To appear in "Fourth Workshop on Robotic Autonomous Observatories (2015)"RevMexAA(SC) METEOR OBSERVATIONS WITH MINI-MEGATORTORA WIDE-FIELD MONITORING SYSTEM S. Karpov, 1, 3 N. Orekhova2 G. Beskin, 1, 3 A. Biryukov3,4 S. Bondar,2 E. Ivanov,2 E. Katkova,2 A. Perkov, and V. Sasyuk3 RESUMEN 2 Favor de prop orcionar un resumen en espanol. ... The faintest detected meteors has the peak brightness about 10 mag, while the ma jority - from 4 to 8 mag. ... 2010; Karpov et al. 2013; Beskin et al. ...

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

Dear PALFA consortium members, Another smooth day of observing, with detections of J1928+1746 (PALFA#1), a much brighter re-detection of B2020+28, a few single-pulse candidates, and not much else to report from our quicklook. ... Update databsae with fill_observed.py Quicklook Notes: * Plot order bug: displays candidate 1, 10, 2, 3, .. Plot display bug: If the last candidate (#9 for now) is filtered out, then the single pulse plot is also filtered out. ... No other obvious quicklook candidates. ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

In Actor Prolog a resident is a special mechanism that helps processes to inspect state of other processes. A resident observes the state of a specified (target) process and if the state of the process changes (for instance, after message handling) it proves a specified predicate of the process. ... Work of the resident. ... Any change of the list of target processes or arguments of resident function results in activation of the resident and repeated collection of information in the target worlds. ...

... The most spectacular view however is from space, where large areas of aurora can be observed simultaneously, even the entire polar cap. ... Such pictures often show a continuous ring of aurora around the polar cap (picture above), caused mostly by electrons leaking out along magnetic field lines, from the plasma sheet of the Earth's magnetic tail. ... Field lines from the auroral oval are believed to lead to the plasma sheet. ... A near-Earth circular polar orbit has many uses. ...

... Filters and SPIcam's Filter Wheel . Mounting filters in SPIcam's Filter Wheel . Updating the filters.txt file . ... note which filters are in which slot, so you can update the filter file (next) Updating the filters.txt file . ... edit the [filters#.txt] file that corresponds to the wheel which you changed. (e.g. filters3.txt for wheel #3) . ... if this filter wheel was installed in SPIcam, replace the [filters.txt] file with the contents of the file you just updated: . ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

... The most spectacular view however is from space, where large areas of aurora can be observed simultaneously, even the entire polar cap. ... Such pictures often show a continuous ring of aurora around the polar cap (picture above), caused mostly by electrons leaking out along magnetic field lines, from the plasma sheet of the Earth's magnetic tail. ... Field lines from the auroral oval are believed to lead to the plasma sheet. ... A near-Earth circular polar orbit has many uses. ...

Peremennye Zvezdy", . ... GSC 04232-02059, NSVS 3145727, NSVS 3145773, NSVS 3173757 . ... 13.1-13.6 (R, NSVS); . ... To combine our unfiltered photometry with publicly available NSVS (Wozniak et al., 2004; http://skydot.lanl.gov/nsvs/nsvs.php) data, we shifted the zero point of our light curve to match its magnitude at maximum light to the magnitude at maximum of the NSVS light curve. ... Light Curve . The light curve of GSC 4232-02059 in the magnitude scale of NSVS 3145773. ...

... See the exerpt below from AAVSO circular, courtesy of Martin McKenna. ... The attached map shows the approximate position, as seen from Cork, at 06.00 on 18 Feb. ... Discovered Independently by: - Yuji Nakamura, Kameyama, Mie, Japan (reported by H. Yamaoka, Kyushu University, IAU Circular 8803); - Yukio Sakurai, Mito, Ibaraki-ken, Japan (reported by S. Nakano, Sumoto, Japan, IAU Circular 8803) Discovery Date: - Nakamura: Feb. 4.8624 UT - Sakurai: Feb. ... Clear skies, Terry Moseley . ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... SSRT - Receiving systems . The SSRT has two independent receiving systems for recording solar observational data, and several ancillary receivers for checking, setting up and adjusting the instrument. The base receiving systen is a multichannel filter receiver for a simultaneous recording in 180 channels with the 500 kHz band each, adjusted at steps of about 600 kHz. ... Channel's band . ...

... Series 4000 filters thread into the barrels of virtually all 1.25" eyepiece brands. Meade Series 4000 filters are a large 26mm in clear aperture and are manufactured from the purest crown optical glass, dyed-in-the-mass ( not "color coated"); there are no finer filters available for telescopic applications. ... For visual applications Series 4000 filters thread into the barrels of all Meade 1.25" eyepieces, and into the barrels of virtually all other 1.25" eyepiece brands as well. ... Meade 4M | ...