RUI: Ozone in the Middle Atmosphere of Mars; Global Maps Throughout the Year

光学引力透镜实验（OGLE）经历了从2000 x 2000 CCD相机（OGLE-II）到镶嵌8000 x 8000 CCD相机（OGLE-III）的重大升级。新系统于2001年夏季开始运作，预计到2002年将得到充分精简，能够对微透镜现象进行真实的实时探测。1.3米的OGLE望远镜位于智利的Las Campanas天文台。利用OGLE-II，Paczynski博士和他的同事们每年检测到大约170个微透镜事件。通过OGLE-III和新软件，他们预计每年可以检测到多达1,000个事件。这种高速率几乎保证了对木星质量行星和恒星质量黑洞的探测。同样的数据将被搜索行星凌日。几乎所有OGLE-II数据（1997-2000年），现已在万维网和DAT上以高度压缩的格式提供：原始CCD图像的1 Terra Byte已减少到不到10 GB。该档案包括银河系隆起，大麦哲伦云（LMC）和小麦哲伦云（SMC）中约16平方度的高信噪比图像，以及大约3000万颗不变星的测光。 该小组预计将在线提供OGLE-III探测到的约100万颗变星的测光结果，首先在24小时内，稍后在拍摄CCD图像的10分钟内。OGLE数据将用于研究我们银河系的结构，LMC和SMC的结构，以及确定更精确的距离尺度。

AST-0204908PaczynskiThe Optical Gravitational Lensing Experiment (OGLE) has undergone a major upgrade from a 2000 x 2000 CCD camera (OGLE-II) to a mosaic 8000 x 8000 CCD camera (OGLE-III). The new systembecame operational in the summer 2001, and it is expected to be fully streamlined, with a real time detection of microlensing events, by 2002. The 1.3 meter OGLE telescope is located at the Las Campanas Observatory in Chile. With the OGLE-II, Dr. Paczynski and his colleagues were detecting about 170 microlensing events per year. With the OGLE-III and new software, they expect to detect up to 1,000 events per year. This high rate virtually guarantees a detection of Jupiter mass planets and stellar mass blackholes. The same data will be searched for planetary transits. Almost all OGLE-II data (1997-2000) are now available on WWW and on DAT, in a highlycompressed format: 1 Terra Byte of original CCD images has been reduced to less than 10 GB.The archive includes high signal-to-noise images of about 16 square degrees in the Galactic Bulge, the Large Magellanic Cloud (LMC), and the Small Magellanic Cloud (SMC), and the photometry of about 30 million non-variable stars. The group expects to make the photometry of about one million variable stars detected by OGLE-III available on-line, first within 24 hours, and some time later within 10 minutes of taking CCD images. OGLE data will be used to study the structure of our Galaxy, the structure of the LMC and SMC, as well as to determine ever more accurate distance scale.******