Hence, the final disposal orbit must meet specific criteria on the minimum raise in perigee altitude depending on the object's reflectivity, mass, shape, and size.

Source: https://www.ibtimes.co.in/isro-moves-communication-satellite-gsat-12-graveyard-orbit-858443

Spectra are created by instruments that break apart light into a rainbow of wavelengths, revealing new details about a cosmic object's composition, distance, and more.

Source: https://phys.org/news/2023-09-ready-nasa-spherex-space-telescope.html

The object's purpose and origin was unclear, Mr Kirby said.

Source: https://www.bbc.co.uk/news/world-us-canada-64605447?at_medium=RSS&at_campaign=KARANGA