For some simulation frameworks, phantom generation includes not only the creation of single objects but also entire populations of object occurrences 4, 18.
There is probably a large population of objects out there," Sheppard said.
Sedna has a highly elliptical orbit in which its closest approach to the Sun is more than twice that of Neptune i.e., billions of kilometres beyond the recognized extent of the Kuiper belt; it may be a member of a population of objects lying between the Kuiper belt and the Oort cloud.
In 2006 the IAU voted to take the latter course while establishing the category of dwarf planets to recognize the larger, more-massive members of a given population of objects having similar compositions and origins and occupying the same orbital "neighbourhood".
During the searches for debris in the geostationary transfer orbit region a new population of objects in unexpected orbits, where no potential progenitors exist, was found.
The idea, however, is very interesting for many Internet of Things (IoT) applications where a potentially large population of objects must be grouped together.
Since February 2001, an extensive series of observations of the GEO regime has been carried out with this system, revealing a considerable population of objects smaller than 1 m in diameter.
"Of course, the most distant object is interesting, but it's the census - the seven objects - that gives us the first indication of the population of objects in the heart of this… era," said Prof Ellis.
The reliability engineering concept described as the so-called 'bathtub curve' [4, 5] conceptualises these phenomena showing the rate of failure in a population of objects as a function of time and consisting of three phases.
We assume that the responses to different test items, applied to the same part, do not affect one another and the same scale invariant item response model applies to all members of the tested population of objects under test (OUTs).
