Collaborative Asteroid Photometry from UAI: 2019 October-December

Photometric observations of seven asteroids, six mainbelt and one near-Earth, were made in order to acquire lightcurves for shape/spin axis models. The synodic period and lightcurve amplitude were found for: 204 Kallisto: 19.505 ± 0.005 h, 0.12 mag; 459 Signe: 5.3555 ± 0.0003 h, 0.32 mag; 563 Suleika: 5.6656 ± 0.0004 h, 0.13 mag; 773 Irmintraud: 6.7484 ± 0.0008 h, 0.05 mag; 1060 Magnolia: 2.9102 ± 0.0006 h, 0.11 mag; 3533 Toyota: 2.9816 ± 0.0004 h, 0.15 mag; (162082) 1998 HL1: 11.60 ± 0.01 h, 0.21 mag.