The location of vessels in real time. Shipping Map online Violet 1 Data vessel and current position

Imagine that the ship is located in the open sea. It is surrounded by only the sky and water from all sides; There is no coast or island around. Swatch where you want! When there were neither satellites of the earth, nor radio communications? If the captain of the vessel does not know how to produce astronomical observations, he will not be able to determine the location of his ship. There will be one way out - to surrender "on the will of the waves." But in this case, the ship is doomed to almost the faithful death.

Parallels and meridians

Whole surface globe covered near imagined mutually perpendicular lines called parallel and meridians, and their aggregate is the so-called degree grid. The line that is formed by the cross section of the globe by the plane passing through the center of the Earth perpendicular to the axis of its rotation is called equator. The equator is equally removed from both the southern and the North Poles. Longitude It is called the distance in degrees from some "zero" meridian to the west (Western longitude) and east (Eastern longitude). Longitude is counting from 0 to 180 degrees on the earth's equator. Lamb The distance in degrees from the equator to a certain point lying either between the northern pole and the equator (northern latitude) is called or between the southern pole and the equator (southern latitude). The latitude is counting from 0 to 90 degrees. The introduction of the concept of longitude and latitude has a huge meaning: it made it possible to note, fix the location of a distant expedition in the low-known areas of the earth's surface or determine the location of the ship in the open sea. Latitude and longitude at the same time serve as the basis of any geographic map. Longitude and latitude of any place are determined using astronomical observations. In these observations, safe swimming in open seas and oceans.

Nautical mile

The coordinates of the location of the ship in the open sea were determined only by the astronomical observation. From here is taken and the magnitude sea Mile - the main unit of measurement of distances covered by the ship. Sea Mile corresponds to a change in the position of any shone exactly one minute of the arc. For clarity, imagine that the sun is in Meridian and are observed with two ships. If the difference in the heights of the sun will be one minute of the arc, then, therefore, the distance between these ships will be equal to one sea mile.

Nautical science

The lack of accurate knowledge of the movement of heavenly bodies and the inability to produce astronomical observations have long served as a huge obstacle to the development of navigation. So, there was a persistent need to improve science of navigation and nautical astronomy. The English Parliament in 1714 appointed a premium at 20 thousand pounds of sterling to the one who will offer a method for determining the longitude of the place in the sea, at least with an accuracy of half a degree. Many people worked on this issue of the decade. It was tempting to become the author of such an important invention, no less tempting was to get the right to such a solid prize. A more population passed, and the task set by the Parliament was still not solved.

Method of determining longitude

Finally, in 1770, Watchmaker Arnold offered parliament method of determining longitude In the open sea. This method was based on the transportation of chronometers. The first chronometers suitable for this were built Harrison Back in 1744. This method was as follows. Going to the sea from a port, the longitude of which is known, enjoy a properly coming chronometer, which shows the time of the starting point. While in the open sea, the travelers for the observation of celestial luminaires determined local time. From the comparison of local time with the reading of the chronometer, the difference of times was found. This difference is times and is the difference between the longitude of the starting point and the point of stay. This method in 1843 with great accuracy (to the hundredth of a second) was determined the longitude of the Pulkovo Astronomical Observatory.

Position point on the earth's surface

So, the position of any point on the earth's surface Determined by long time and latter. The magnitude of the arc meridian from the earth's equator to this place determines its latitude. The magnitude of the Equator arc from the zero (main) meridian to the meridian of this place determines its longitude. The main, or zero, meridian is considered to be the one who passes through the famous Greenwich Astronomical Observatory located in England, not far from London. To determine the longitude of any point on Earth, it is enough to know the testimony of hours in this place and in Greenwich in the same moment. This is based on the fact that the difference in the testimony of hours in the same moment of any two places is equal to the difference in the longitude of these places. The whole circle is known is 360 degrees, which corresponds to 24 hours; One hour corresponds to 15 degrees, and one minute of time corresponds to 1/4 degrees, or 15 minutes of arc. For example, the difference in the readings of hours for the same point in Leningrad and Greenwich is 2 hours and 1 minute. Consequently, Leningrad is east of Greenwich by 30 degrees and 15 minutes. Or, as they say, Leningrad has 30 degrees and 15 minutes of Eastern longitude. The latitude is the arc of Meridian from the earth's equator to a certain place. Or, in other words, the latitude of points on the earth's surface is equal to the angular height of the pole above the horizon. Therefore, to determine the latitude of the location of the ship in the sea, a number of astronomical observations were carried out. These observations are usually led by a memorial tool called sex. Day with this tool is measured by height, and at night the height of the moon, polar or some other star. In connection with the invention, the radio determination of longitude in the sea is much easier.

International Commission of Time

Special was created International Commission of Timewhich the whole globe conditionally divided nine zones. A special scheme has been developed, mandatory for all countries of the world, the transfer of accurate, so-called rhythmic, time-based signals based on stars. Rhythmic time signals were transmitted several times a day on radio with nine most powerful radio stations in various Greenwich Time Watch. The most famous from these radio stations were Eyregby in England and the name of the Comintern in Moscow. Therefore, in any point of the globe, there is a ship, he, with the help of radio, at least with one of the nine stations, received a signal of the exact time and, therefore, knew the reading of the clock for the main meridian at the moment. Then, with the help of astronomical observations, the exact local time was determined and for the difference of these two times - the longitude of the location of the ship.

On the movement of continents

Famous geologist Vegener once suggested that continents Constantly several move. This movement, in his opinion, is so much significantly that it can be detected using astronomical observations through a small comparative period. Hence it followed that the longitude of the place is also changing, and this change can be seen throughout the relatively small period of time. The assumption expressed by Vegener caused great interest among specialists. The Commission from representatives of the International Astronomical and International Geodesic Unions developed a draft definition of world longitude on radio every few years. For the first time, this definition of longitude was carried out in 1926. Three groups of observatories were elected tops of the main polygon. First Group - in Algeria (Africa), Zi-Ka-Wei (China) and San Diego (California); The second group - in Greenwich, Tokyo, Vancouver and Ottawa (Canada); Third Group - Manilla (Philippines), Honolulu (Sandwich Islands), San Diego and Washington. These observatory had a connection with a number of observatory leading work. At the same time, the following observations were conducted by many observatories and temporary stations. The work was successful. Radio signals were taken at huge distances. So, for example, Bordeaux stations radio signals (France) were accepted in America and Australia. The longitude was determined with extremely high accuracy, and the location error of the main polygon did not exceed 0.007 seconds. In 1933, this enterprise was repeated in an even more ambitious scale, and the technical level of the work carried out was even higher than in 1926. As a result, it turned out that the assumption expressed by Vegener was not fully confirmed. If there is a century-old shift of America regarding Europe, then its value, in any case, cannot exceed three centimeters per year. It is not important, however, it is noted that from comparing the reception of time signals conducted by systematically observatives of Europe and America, a noticeable (about 18 meters) is detected by longitude fluctuations with a period of approximately 11 years, almost coinciding with a period of solar spots.

Want to know where there are and which vessels or find the location of a particular vessel in real time, then select the desired quadrant on the map and view the movement of the vessels. To find out what kind of ship and who owns, just click on the marker on the map of ships.

More options (if the card is not available above)

→ Riverships.ru.

Information on Russian river steamers (with photo).

ShipSpotting.com.

SHIPSANDHARBOURS.COM.

Find a ship and watch his photo.

→ CFMc.ru/positioning

Information about the location of training courts.
Information about the location of the courts is provided on the basis of these sectoral monitoring system (OSM). Positioning time is set by UTC.

→ maritime.com.pl

Information on Polish courts.
Quote:
"Section maritime shipping consists of the following modules: maritime agencies, court catalog, a list of regular lines.
This section contains a list of Polish vessels in operation, with their full characteristic. In addition to detailed technical data, here you can find photos, illustrations and specifications. The opportunity to find all the information for any vessel, asking his name, vessel type, shipowner or technical parameters. "

→ VesselTracker.com.

If you want to see a photo of the steamer, and brief information About vessel.

→ marineetraffic.com.

Site in real time to follow the vessel

→ ContainershipRegister.nl.
search by container name. You can search for a ship by name, you can IMO, etc.

→ World-ships.com.
In general, the search for all courts of the world, but it is necessary to register.

→ Solentwaters.co.uk.
You can find a vessel in real time by name.
In general, a cool site.

→ Digital-seas.com
Looking for a lot of information on the vessel, photo, description, when registering access to the full database.

→ Digital-seas.com
shows the photo of the vessel, a brief info about it, the current location, ports of entering ..
need registration

View information, and photos by landlords of the shipping company MSC SHIPS.
Photo super quality !!!

We present you a unique card, with which you can find the location of any ship in the World Ocean, as well as determine the direction of its movement.

The technology on which the card work is based, relies on a network of satellites capable of receiving the encrypted signals of the automatic identification system, or AIS. This system is designed specifically for civilian navigation and is an encrypted signal transmitted by the ship into orbit. The signal contains basic information not only about the direction of movement of the vessel, but also key data about it - name, type, speed, cargo, port of destination etc. Information obtained by satellites is transmitted to the ground where it is automatically processed.

The result of such treatment was embodied in interactive Map The movements of the courts that can be seen below.

Interactive map of the movement of maritime courts

Search for a ship by his name

A legend is attached to the map, thanks to which you can determine the type of ship, followed by observation. Similar data can be obtained by clicking on his icon on the map. You can watch the movement of ships both in the satellite mode and in the overlay mode of the real picture. In addition, knowing the name of the ship, you can find it on the map. To do this, enter the name in the corresponding field on english language. If everything is done correctly, then the map itself will be held on the selected ship.
Video instructions for searching for ships on the map

Card update

Almost all the data shown on the map is updated in real time. It should be remembered that the speed of movement of the ship in the open sea is relatively small, so if it seems that the vessel does not move, then it may be worth just waiting. However, the reason for the "frozen" of the ship may not only be in this - the AIS satellite network still has "white spots" in the world ocean, which periodically come to the courts. In this case, you just need to wait until the ship can reaffuse the satellites - its location will be updated.