Recently, because of the relationship between Sino-2 and Beidou, many netizens posted the Tle data indicating the orbit of the satellite. Here is a brief introduction to the satellite orbital parameters and the format of the tle. Although no one actually reads the TLE data directly, it is the use of software to obtain satellite orbit and location information, but it is hoped that these introductions can be
clock difference drift rate, in seconds/in seconds;
~ Long-Term Variation of the flat angle (near-location parameter), radians/time seconds;
~ Reference point and radian of the moment;
~ Flat heart rate;
~ Square root of the long half axis, meters;
~ Refer to the time when the accesskey is raised to the chijing, radian;
~ Refer to the time-point orbital inclination, radians;
~ Near-location corner, radians;
~ The Long-Term Variation of the elevation point chijing in the Equator plane (mainly ca
How to make use of PS to synthesize beautiful star orbit effect chart
First of all, let's talk about the star rail. What is the star rail, as we all know, the stars are moving, then if we have a long exposure, or through some of the later techniques, the stars move the process of filming down, then the stars are not a bright spot, but into a line, then this bright line is the star track.
As the following picture shows, the point in the
first, Kepler's LawThe three Laws of planetary motion proposed by German astronomer J. Kepler. The first and second laws, published in 1609, were summed up in Kepler's data from the observation of the Martian position in the valley of astronomers; the third law was published in 1619. These three laws are called the Ellipse law, the area law and the harmonic law respectively.The contents of the Three laws:Kepler's First law (orbital law) all planets orbiting the Sun are elliptical, and the sun is
This article mainly introduces the C + + train into the orbit algorithm implementation code, the need for friends can refer to the "Problem description" nbsp; A city has a railway station, and the rails are laid out as shown in the picture. There are n carriages from a direction into the station, according to the entry sequence number for 1~n. Your task is to have them enter the B-direction rails in a certain order and drive out of the station. In o
1, the Tle Rail report:Next, the significance of the contents of the Tle Rail report is as follows:2. SGP4 Model:The SGP4/SDP4 model developed by NORAD is needed for the calculation of satellite orbits in the tle orbit, and the SGP4 model was developed by Ken Cranford in 1970 for the Near Earth satellite, which is a broad solution to Lane and Cranford (1969). Analysis of the simplification of the theory, these models need to take into account the Eart
Still looking for a star track trick? Is it still taking a few hours to get a star chart? In fact, a single photo of the stars can also produce a brilliant star track effect. Take a good picture of the sky, the next step to the @ James Photography, he will teach you how to use the peninsula Snowman plug-in single star material to make the orbit.
First step
Ctrl+o open a piece of material that is accurate and the stars are not too much
T
Jquery plug-in orbit. js achieves image folding rotation effect, jqueryorbit. js
JQuery image folding rotation code. You can click the left and right arrows to switch between images. Compatible with mainstream browsers. phplearn is recommended for beginners!
Usage:1. the header area references the jquery.min.js file and the chuxz.css file.2. Add 3. Reference jq. orbit. js and
Orbit is a well-designed and easy-to-use jQuery image slide plug-in. It not only supports switching between images, but also supports scrolling over content. The customization of the plug-in is quite high. It provides multiple parameter settings. You can set it to a style that fully meets your requirements. JQuery image folding rotation code. You can click the left and right arrows to switch between images. Compatible with mainstream browsers. phplear
9 Month 7 Universal Time 20 Point, minor 2014rc The closest distance to the Earth's orbit is the distance between the Earth and the earth. 1/10 . See: This year 8 Month 31 On the night of the day, astronomers found traces of the minor. The diameter of the minor is about 20 About meters. After calculation, the minor 9 Month 7 Day distance from Earth 4 Kilometers pass the earth's orbit
How to use the whole site downloader? The following will explain the whole station downloader use tutorial, through the whole station downloader we can browse a webpage offline, and can crawl from anywhere on the Internet the file you want, very useful oh ~
The first step, open the "site full Station Downloader", the
';">BR>BR>BR>BR>BR>BR>BR>BR>BR>BR>BR>BR>BR>P>Applicable browser: 360, FireFox, Chrome, Opera, Proud tour, Sogou, the window of the world and other new browser.P>P>Source:ahref= "Http://hovertree.com"Target= "_blank">How to aska> ahref= "Http://hovertree.com/h/bjaf/css3xingxi.htm">Originala> ahref= "http://hovertree.com/texiao/">Effectsa>P>Div>Body>HTML>Transferred from: http://hovertree.com/h/bjaf/css3xingxi.htmEffect Summary: http://www.cnblogs.com/roucheng/p/texiao.htmlCSS3 Orange Planet orbi
code as follows:
/*STL stack to achieve * *
#include #include using namespace Std;
const int MAXN=1000+10;
int N,TARGET[MAXN];
int main ()
{
while (Cin>>n)
{
Stackint a=1,b=1;
for (int i=1;icin>>target[i];
int ok=1;
while (b{
if (A==target[b]) {a++; b++;}
else if (!s.empty () s.top () ==target[b]) {s.pop (); b++;}
else if (aelse {ok=0;break;}
}
if (OK)
coutElse
cout}
}
Summary
There is still room for optimization in the code you write. Learn the clear and logical
Label:Multi-threaded downloader (excluding the database section) 1. Write in front: Although the program framework has been set up in the demo, but due to the author's time, the core part is only completed: Multi-threaded Download part, other database, service notification, pause part has not been added to the project. 2, relevant knowledge points: (1) Java threads and how to stop threads (2) Java randomaccessfile file operation (3) configuration of
Silverlight has a Downloader object that can be used to download the corresponding files in the Silverlight application, such as scripts, media files, and so on. With it, you can download the appropriate files based on the specific needs of your application without having to download all the files needed by the entire application when the Silverlight plug-in is initialized. This not only saves the time the user spends waiting to download the applicati
more entry URLs in the download queue)}.(2) The thread responsible for downloading the network resources takes one or more URLs from the download queue and downloads the network resources they point to locally {before downloading, it is generally necessary to determine if the URL has been downloaded, and if it has been downloaded, ignore the URL}. If there is no URL in the download queue and all the download threads are dormant, it means that all the network resources that were brought out by t
. net mass downloader if mass is regarded as a word, the software name can be translated as a "Block downloader". Do you want to split the files into blocks for separate download? However, the true meaning of mass is the meaning of "multiple access Switching System" (mass), which divides a single download process into multiple connections, A connection is responsible for downloading a small part of the task
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