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This paper investigates a poorly studied open cluster, NGC 5288, using 2MASSJHKS and the recently released Gaia DR3 astrometric and photometric data. Themean proper motions in Right Ascension and Declination are estimated as (-3.840+/- 0.230) and (-1.934 +/- 0.162) mas/yr, respectively. We also derive the ageand distance of the cluster as 510 +/- 190 Myr and 2.64 +/- 0.11 kpc, usingcolour-magnitude diagrams (CMDs). We have also obtained distance as 2.77 +/-0.42 kpc using the parallax method. Interstellar reddening E(B-V) in thedirection of the cluster is determined as 0.45 mag using the ((J - H), (J - K))colour-colour diagram. We have found the mass function slope for main-sequencestars as 1.39 +/- 0.29 within the mass range 1.0 - 2.7 solar mass, which agreeswith Salpeter's value within uncertainty. Galactic orbits are derived using theGalactic potential model, indicating that NGC 5288 follows a circular patharound the Galactic center.

A deep study of open cluster NGC 5288 using photometric and astrometric data from Gaia DR3 and 2MASS