The last issue of the scientific journal - the Minor Planet Bulletin has recently published our work on the calculation of the rotational period of 3 asteroids, namely, 232 Russia, 1117 Reginita and (11200) 1999 CV121.
Observations were collected through collaborative campaigns between the months of 2018 April and July by Winston Grech, Stephen M Brincat and myself.
These campaigns amount to over 1000 photometric images with a photographic exposure that ranged from 4 to 6 minutes per image, giving a total of more than 80 hours of observation time.
The asteroid 232 Russia resides within the inner asteroid belt between Mars and Jupiter while 1999 CV121 (no name has been given yet to this asteroid) is found somewhere within the middle asteroid belt. The asteroid 1117 Reginita is a member of the Flora asteroid family that also resides within the inner regions of the asteroid belt.
This is a link to our scientific paper published in Volume 46 of the Minor Planet Bulletin.
This study is also available through the SAO/NASA Astrophysics Data System: