... Up: Archiving . ... The Spatial Indexing used in the Sloan Digital Sky Survey (SDSS) Science Archive divides the spherical surface into triangles in a hierarchical scheme resulting in roughly equal surface areas at each level, which is a big advantage over other schemes. ... The use of the Spatial Index in the SDSS is two-fold, a level-5 index is used to partition the bulk data, and a high-resolution level-14 index id is assigned to each data point to enable quick lookup and proximity searches. ...

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

... Beijing Global Information Center of Application and Exploitation, Beijing, China Introduction In the current list of satellites tracked by ILRS stations, the mission for GNSS include: one GPS satellites four GALILEO satellites six GLONASS satellites one QZSS satellite four COMPASS satellites COMPASS is the Chinese regional satellite navigation system, consisting of satellites with GEO, IGSO and MEO orbit and the orbital altitudes of 21500-36000km . ... M3 can be tracked by all ILRS stations. ...

tranback -- Transform an X,Y position from output to input pixel position using the same conventions as drizzle tranback xout yout . xout = 400 [real] . ... The X dimension of the input image (this is used to determine the centre which is the origin of the transformations). (nyin = 800) [real] . ... If "output" the input image center is mapped to the center of the output grid, rotated about that center and then shifted along the grid of the output image. ...

... The unlocked gate at the entrance to the observatoryтАЩs gravel driveway should remain closed to prevent the public from driving back to the observatory. ... This means that if there are still members of the public present at the observatory who do not wish to leave by 11:30 PM they will be locked in the park until a keyholder leaves and secures the gate(s) behind him/her. ... Roll the roof back using the hand crank near the computer room. ... Amateur Astronomers Association of Princeton, Inc., ...

... Bad Astronomy . ... On Thursday, February 15th 2001 (and replayed on March 19), the Fox TV network aired a program called ``Conspiracy Theory: Did We Land on the Moon?'', hosted by X-Files actor Mitch Pileggi. ... Dust around the lander . ... However, it appeals to our common sense: when the sky is black here on Earth, we see stars. ... Bad: The program claims that when the top half of the lander took off from the Moon to bring the astronauts back into orbit, there was no flame from the rocket. ...

... Юлия Волкова 08.04.2016 10:04:10] Юлия Волкова рассказала о своей борьбе с раком Подробнее .. ... Меган Трейнор 07.04.2016 07:04:10] Меган Трейнор выступила на iHeart Radio Awards с хитом NO Подробнее .. ZAYN 07.04.2016 05:04:47] Зейн Малик произвел фурор Подробнее .. Kygo 07.04.2016 05:04:35] Kygo выпустил еще один сингл с предстоящего альбома Подробнее .. Татьяна Каширина 07.04.2016 04:04:42] Штангистка Татьяна Каширина пропустит чемпионат Европы Подробнее .. ...

... ASRAS HOME . ... Mees Observatory . ... Site . ... Weather forecast will be correct for the Farash Center . ... Through gracious donations from Marion and Max Farash and the Louis S. Wolk Foundation, ASRAS has been able to acquire a large piece of land well away from the city lights. ... The Marian and Max Farash Center for Observational Astronomy consists of an education center, maintenance building and 6 working observatories on a 17 acre plot of land just off route 64 in the hamlet of Ionia, NY. ...

... Сегодня: 10 апреля 2016 г. Специалисты NASA разработали специальную программу, которая сможет управлять спутниками, находящимися на орбите, и принимать решения без помощи человека. То есть спутниками будет управлять некий искусственный мозг. Эксперимент будет проведен в 2002 г. с тремя миниатюрными спутниками весом не более 15 кг каждый. ... Например, в течение нескольких дней в 1999 г. NASA проводило эксперимент Remote Agent, в ходе которого компьютер управлял полетом зонда Deep Space. ...

... Structure of Data . ... Catalog . ... The SAI OCL Catalog site provides several VO-enabled modes of operation: . VO-enabled catalog data analysis from a browser . ... Endpoint URL is http://ocl.sai.msu.ru/catalog/conesearch/ . ... VO-enabled catalog analysis from a browser . Presently, this recipe works with Firefox (Windows, MacOS, Linux), Internet Explorer (Windows) and Opera (Windows) browsers with Java plugin 1.6 installed. ... Main TOPCAT window with SAI OCL catalog loaded will appear. ...