Geomatics

Geodesy, Land Surveying, Mapping and more

[geomatics]

GNSS Precise Orbits (Ephemerides) • Geomatics

In this article we explore what are GNSS Precise Orbits (or Ephemerited) and how to download them for use in post-processing your GNSS data.

GNSS Precise Orbits or Ephemerides refer to the precise data sets specifying the orbit parameters for a specific satellite at a specific time. These data sets are used by GNSS receivers to derive positions.

GNSS Orbits and Clock Data information is usually distributed in the SP3-d file format (and as a message in a real-time data stream). These IGS products (SP3 files) are typically be classified according to their latency – the length of time between the time of the last observations and the time the file is produced.

Read the full article to find out how to download GNSS Precise Orbits.

[geomatics]

🕐What is GPS time and how to calculate it? • Geomatics

GPS time is a time scale maintained by the atomic clocks of satellites and ground control stations of the Global Positioning System (GPS)

GPS time is an essential component of the Global Positioning System. It is used in various applications, including land surveying, where it provides the accuracy needed for precise measurements. Calculating GPS time from UTC involves knowing the current number of leap seconds and adding this to the current UTC time.

[geomatics]

The 3G switch-off: How to be prepared as a surveyor • Geomatics

3G switch-off 📵 How it affects the surveying industry and your business? How to ensure your surveys are not affected by it?

As the deadline for the 3G switch-off approaches, surveyors find themselves on the brink of significant changes that will impact their operations. It becomes crucial for these professionals to equip themselves with the necessary knowledge and strategies to effectively navigate the impending transition. In this article, we delve into a comprehensive exploration of the key considerations and practical tips that surveyors should bear in mind during this transformative period.

The advent of the 3G switch-off necessitates a thorough understanding of the evolving landscape of mobile connectivity and its implications for surveyors. By familiarizing themselves with the latest advancements and trends in the telecommunications industry, surveyors can proactively adapt their workflows to align with the emerging standards and technologies.

One fundamental consideration revolves around the compatibility of surveying equipment and tools with the new connectivity standards. Surveyors must assess whether their current equipment is capable of operating optimally in the updated mobile network environment or if any upgrades or replacements are required. This evaluation process will ensure that they have access to reliable and efficient tools that align with the changing connectivity landscape.

Furthermore, surveyors need to contemplate the potential impact of the 3G switch-off on data transmission and communication. The transition may introduce new protocols, frequencies, or technologies that affect the transfer and exchange of data during surveying activities. By proactively addressing these concerns, surveyors can minimize disruptions and ensure a seamless flow of information between different stakeholders.

Another aspect that surveyors should focus on is the optimization of their workflows. The evolving mobile connectivity landscape may bring about opportunities to streamline and enhance surveying processes. Exploring new technologies, such as 5G or alternative wireless communication methods, can empower surveyors to collect and transmit data more efficiently. Additionally, leveraging advanced data analysis and visualization tools can aid in extracting valuable insights from survey data, enabling surveyors to provide more accurate and comprehensive reports to their clients.

In summary, the impending 3G switch-off requires surveyors to prepare themselves for the imminent changes in the mobile connectivity landscape. By considering the compatibility of their equipment, addressing potential data transmission challenges, and exploring opportunities for workflow optimization, surveyors can navigate the transition with confidence. This article aims to provide surveyors with the necessary guidance and practical advice to ensure a smooth and successful adaptation to the evolving mobile connectivity environment.

[geomatics]

What is GNSS?

GNSS (Global Navigation Satellite Systems) is a term used to describe satellite-based systems that provide positioning, navigation, and timing (PNT) data.

These systems use a network of satellites orbiting the Earth to transmit signals that can be received and processed by GNSS receivers on the ground. By analyzing the signals from multiple satellites, GNSS receivers can determine their own location, velocity, and timing with high accuracy.

GNSS is used in a wide range of applications, including mapping, surveying, aviation, agriculture, and many others. Some of the most well-known GNSS include GPS (developed by the United States), GLONASS (developed by Russia), Galileo (developed by the European Union), and BeiDou (developed by China).

In addition to these systems, there are also several satellite-based augmentation systems (SBAS) that are used to improve the accuracy and reliability of GNSS data. These systems use a network of ground-based reference stations to measure errors in the GNSS data, and then transmit correction data to GNSS receivers via satellite.

Full article below:

GNSS vs GPS - what is GNSS? • Geomatics

GNSS is a term used to describe satellite-based systems that provide positioning, navigation, and timing (PNT) data

[geomatics]

Survey Field Books & Field Notes

Survey Field Books & Field Notes • Geomatics

A Survey field book is an essential accessory for any type of field work. But the quality of your field notes matters more than you think.

A survey field book, also called a survey log book, is an essential site accessory that shouldn’t be missing from any surveyor’s pocket.

Read the full article about surveying field books on 🌍Geomatics.

[geomatics]

Converting to and from SnakeGrid coordinates might seem a like a difficult task when you’ve never done it, but it’s actually quite a simple procedure. In this article I will explain how to do different conversions to and from SnakeGrid coordinates. Read the article below for the full tutorial.

Converting SnakeGrid Coordinates • Geomatics

A step-by-step tutorial on how to do different conversions to and from SnakeGrid coordinates, including OS to SnakeGrid and viceversa.

[geomatics]

Survey prisms are specially designed retro-reflectors that are used to reflect the signal from an EDM device when measuring ranges and angle

What are survey prisms?

Survey prisms are specially designed retro-reflectors or, more precisely a corner reflectors, that are used to reflect the signal from an Electronic Distance Measurement device such as Total Stations. In surveying, prisms assemblies are also commonly named “targets“.

Learn more on https://geomatics.cc

[geomatics]

AutoCAD - How to fillet elements with the Fillet Tool • Geomatics

AutoCAD How to fillet corners easily? You'll learn how to apply the fillet tool in order to smooth corners between two elements.

A filet is term used in many industries and can be defined in different ways, but it simple terms it is a rounded sharp edge or corner. In this article I will explain the fillet tool in AutoCAD & how to fillet 2D and 3D elements.

[geomatics]

👷Land Surveyors • Geomatics

A Land Surveyor gathers positional data to produce accurate representation of the shape of the land and anything on it.

At their very core Land Surveyors do measurements. To be more specific, a surveyor gathers positional data to produce accurate representation of the shape of the land and anything on it. Whilst the term surveyor is all encompassing, there are other terms that are used to describe surveyors.

[geomatics]

⛰️Land Surveying • Geomatics

Land Surveying is the process of gathering, collecting, and processing geographical data for creating a report about the surveyed area.

Land Surveying is the process of gathering, collecting, and processing geographical data for creating a informational report about the surveyed area. Land Surveyors gather positional data to produce accurate representation of the shape of the land and anything on it.

[geomatics]

Prism Constants in Survey Targets Explained • Geomatics

The ultimate guide to survey prisms and their constants. This article explains how survey prism constants are defined and how they work.

Have you ever used targets and total stations from different manufacturers (e.g. using a Leica Target with a Trimble instrument) and wondered why you’re having systematic errors in your data? Chances are you need to correct your constants.

[geomatics]

TSC3 Trimble Station Setup Options • Geomatics

What each Station Setup option means on the TSC2 and TSC3 Trimble controllers and what are the advantages and disadvantages of each method.

An article that explain all station setup options inside the Trimble TSC3 Controller.

[geomatics]

In this article I will explore the meaning of SnakeGrid. I will go over topics like: what is the Snake Grid Coordinate System, what are SnakeGrid coordinates, what are the Snake Grid types out there and SnakeGrid converter software.

SnakeGrid - The Ultimate Guide 🗺️

SnakeGrid (or Snake Grid) is a projected coordinate system specifically designed for large scale linear engineering and mapping projects.