BLITS卫星 (Ball Lens In The Space) 2009年9月17日发射,轨道倾角98.77度,高度832公里,太阳同步轨道.重7.53公斤. 圆形轨道,周期101.3分钟. 直径85.13mm,内部的球形反射器直径53.52mm.只有SLR技术可以对其进行POD (Precision Orbit Determination ). 任务的目的是试验和验证球状玻璃回射器的卫星之概念和获取SLR数据,解决地球 物理学\地球动力学和毫米级相对论以及亚毫米级精度的SLR测量等科学问题. "The purpose of the mission is experimental verification of the spherical glass retroreflector satellite concept as well as obtaining SLR data for solution of scientific problems in geophysics, geodynamics, and relativity by millimeter and submillimeter accuracy SLR measurements."---1 格拉茨卫星激光测距站,用重复率2千赫兹的激光确定了BLITS的旋转参数,发表了论文.---2 "The 2 kHz SLR station Graz measures spin parameters of this satellite, providing information about the rotational dynamics of the body. The measurements obtained during the period from September 26, 2009 to November 24, 2010 show a significant change of the spin configuration"---2 图片来源: 1 http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/blit_reflector.html 进一步了解可参考: 2 Spin parameters of nanosatellite BLITS determined from Graz 2kHz SLR data D. Kucharski G. Kirchner and F. Koidl
上周的一幅图 七个专用激光卫星,轨道高度与倾角. http://ilrs.gsfc.nasa.gov/stations/recent_groundtrack.html Responsible Government Official: Carey Noll NASA's Privacy Policy and Important Notices Plot modified date: Saturday, March 12, 2011 Last modified date: Tuesday, March 01, 2011 Author: Mark Torrence Maintained by: Carey Noll
以下资料表明，由于地震的影响，原定 2011 年 1 月在智利举行的一个有关激光测距的国际会议推迟到 2011 年 5 月份在德国举行。 Author: Mike Pearlman/ILRS CB Subject: 17th International Workshop on Laser Ranging - May-16-20 , 2011 This is a correction to the previously issued email. Note that the meeting will take place May 16-20, 2011. Sorry for any confusion. The next International Workshop on Laser Ranging was previously scheduled to be held in Concepcion Chile in January 2011 Unfortunately, due to the earthquake there in February, it was no longer possible to hold the workshop in Chile . BKG has offered to host the 17th workshop in Bad K=F6tzting, Germany , near the Wettzell Geodetic Observatory, from May 16-20, 2011. Johannes Ihde has provided the following information concerning accommodations and travel to the venue; blocks of rooms have been reserved at these hotels starting May 15:
资料表明:6月18日发射,23日进入绕月轨道的月球探测器(LRO)的激光测距 于6月30日UTC21:10,GSFC NGSLR 由成功进行.可观测时段约1小时. 德克萨斯大学的McDonald Laser Ranging System (MLRS)也在7月2日初次 进行激光测距时获得成功. 另外,其他站点也在进行相应的测距尝试. YOUKU 网络视频月球之谜( 长度57 ： 50) 中的月球激光测距 介绍时段为 第 28 ： 30 至 31 ： 08 . 参考文献(电子邮件)如下: Author: Jan McGarry/NASA GSFC Subject: Successful Laser Ranging to LRO NASA?#115; Lunar Reconnaissance Orbiter (LRO) was launched on June 18 and achieved its commissioning orbit around the Moon on June 23. The GSFC NGSLR successfully ranged to LRO on its first attempt on June 30 at 21:10 UTC. The ranging was strong with LOLA seeing 20+ (out of a possible 28) returns per second throughout most of the hour long pass. Since that initial pass, NGSLR has had several successful ranges to SLR. McDonald Laser Ranging System (MLRS) at the University of Texas successfully ranged to LRO on their first attempt on July 2nd. Other approved sites will begin ranging to LRO soon. Congratulations to the entire LRO-LR team!
附件中的幻灯片，是以 long wavelenth static and time varying gravity field 搜索出来的。激光测距数据可以用于计算长波长静止或者时变重力场，幻灯片中只是在介绍激光测距数据的分析和运用时提到了。计算重力场参数不过是激光测距数据的运用之一，还可以用于 Earth orientation parameters (polar motion and LOD) 3-D coordinates and velocities of the ILRS tracking stations Time-varying geocenter coordinates Precision Orbit Determination Fundamental physical constants Lunar ephemerides and librations Lunar orientation parameters 这里的激光测距技术包含了对于人造卫星和地球天然卫星月球的激光测距。前三项可以用于地球或者地基测站。第四项可以用语地球的人造卫星和天然卫星。第五项确定的是基本物理常数。最后两项适用于月球。 GFZ
COMPASS-M1 激光测距跟踪参数 这颗卫星是 2007 年 4 月 13 日发射的。属于中国国防部。中文名字：北斗。定位卫星。卫星激光测距的运用目的：精密轨道确定。正则点： 300 秒。后向反射器： 42 个角反射器。 轨道倾角： 55.5 度。轨道类型： MEO 。 后向反射器图片见 http://www.sciencenet.cn/blog/user_content.aspx?id=42746 资料原文及来源： http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/com1_general.html The Compass Navigation Satellite Experimental System is a satellite constellation developed by the Chinese Defense Ministry. The system, also known as BeiDou, is the first space-based regional navigation and positioning network developed by China. COMPASS provides all-weather, two-dimensional positioning data for both military and civilian users. The system has both navigation and communication capabilities and spans most areas of the East Asia region. The satellite network consists of four BeiDou 1 satellites launched in 2000, 2003, and 2007 in geostationary orbit; a fifth satellite, COMPASS-M1, was launched in MEO in April 2007 COMPASS Mission Parameters COMPASS-M1 Sponsor: Chinese Defense Ministry Expected Life: Primary Applications: Positioning Primary SLR Application: Precision orbit determination Launch Date: 13-Apr-2007 COSPAR ID: 0701101 SIC: NORAD: 31115 NP Bin Size 300 seconds RRA Diameter: RRA Shape: Hexagonal Reflectors: 42 corner cubes Orbit: MEO Inclination: 55.5 degrees Eccentricity: 0.00068 Perigee: 21,500 km Period: 773.39 min Weight: 2,200 kg 其它激光测距博文见： 标题 作者 时间 我流动激光测距仪在韩国 jlpemail 2008-10-19 乌鲁木齐将建卫星激光测距站 jlpemail 2008-10-19 韩国第一个激光测距卫星 jlpemail 2008-10-15 北斗卫星的激光测距试验 jlpemail 2008-10-15 中国地壳运动观测网络采用了卫星激光测距(SLR)技术 jlpemail 2008-10-13 一篇卫星激光测距的优秀论文 jlpemail 2008-10-10 远洋测量船对神舟七号进行激光测距 jlpemail 2008-10-07 五个台站对静止卫星ETS-8 的激光测距 jlpemail 2008-09-30 神舟4号激光测距与北京房山站 jlpemail 2008-09-23 基于嵌入式系统的激光测距机检修仪的设计 danfouer 2008-05-28 GPS/GLONASS/GALILEO都采用了激光测距定轨技术 jlpemail 2007-09-17 一颗刚开始激光测距观测的静止卫星 jlpemail 2007-03-27 我国安置在南半球的卫星激光测距仪 jlpemail 2007-03-20 昆明和上海激光测距站外观图 jlpemail 2007-03-20 卫星激光测距有关的两张照片 jlpemail 2007-03-20 卫星激光测距简介 jlpemail 2007-02-13 科学时报电子版相关新闻： 标题 作者 时间 首个设在境外但产权属我国的中型天文仪器高精度人造卫星激光测距仪将运抵阿根廷 肖洁 2005-9-1 10:36:40 中科院高精度卫星激光测距仪将落户南美 记者刘英楠 2004-2-11 10:22:59 标题 作者 时间 中国高精度人造卫星激光测距仪在南半球安置运行 刘丹 2007-3-27 0:1:47
我国的流动激光测距仪在韩国运行 var $tag='流动激光测距仪,韩国,武汉,教育'; var $tag_code='6967d57c30e85ab1e520f1870f49f432'; 国外台站扫描 本月17日结束的国际激光(测距)网会议上,有报道表明, 我国的流动激光测距仪器在韩国开始了观测。这个项目 由中国地震局和韩国天文和空间科学研究所合作进行。仪器 已经于8月份运抵韩国,预计运行一年。这个研究所组建于1974年。 参考文献: http://www.kasi.re.kr/english/e_intro/greeting.php First SLR Operation in Korea using TROS, Chinese Transportable Ranging Observation System Hyung-Chul Lim, Guo Tangyong, Wang Peiyuan, Hyeon-Seok Jeon, Yoon-Kyung Seo, Jong-Uk Park, Zou Tong Korea Astronomy and Space Science Institute E-mail : hclim@kasi.re.kr The memorandum of agreement (MoA) between Institute of Seismology, China Earthquake Administration (ISCEA) and Korea Astronomy and Space Science Institute (KASI) was concluded for a productive collaboration in the field of space geodesy in June 2008, which specially includes a collaborative operation of TROS in Korea. TROS was moved to Korea in August 2008 on the basis of MoA and it will be operated for 12 months in KASI headquarter in Daejeon. The all-electronic part of TROS is integrated in one FPGA board, including event timer, GPS locked clock, range gate generator, servo system, software and so on. Additionally, it is capable of KHz ranging and ISCEA succeeded in obtaining laser ranging data using KHz laser system in the beginning of this year. Now TROS is operated by using a laser system with several Hz repetition rate because the new KHz laser system is not stable. KASI and ISCEA want to contribute to the international laser ranging societies by a collaborative operation of TROS.
标签: 激光测距
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