Photometric measurements of this asteroid made in 2003 resulted in alight curve showing arotation period of11.740±0.005 h and a brightness variation of0.45±0.03 in magnitude.[5] This is aCh-class asteroid in theBus asteroid taxonomy, showing a broad absorption band in itscarbonaceous spectrum near a wavelength of 0.7 μm. This feature is interpreted as due to iron-bearingphyllosilicates on the surface. 754 Malabar spans a girth of 102.8 km.[4] Between 2002 and 2022, 754 Malabar has been observed tooccult sixteen stars.
^abStephens, Robert D. (December 2003), "Photometry of 628 Christine, 754 Malabar, 815 Coppelia, and 1025 Riema",Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers,30 (4):69–70,Bibcode:2003MPBu...30...69S.