LC of the source, with error bars representing MAD(ΔS_imjd), periodograms (also plotted are the 99%, 95%, and 90% false probability levels, respectively: the green dot-dashed line, the cyan full line, and the red dashed line), the phase-folded LC using the best period fitted, the RGB image of the source using the Spitzer IRAC 3.6 μm, IRAC 4.0 μm, and the 24 μm MIPS band as blue, green and red, respectively. The VVV source is marked by the blue circle and the green cross represents the MIPS co-ordinates. The contours of the RGB are in the interval of [Peak-5σ, Peak] from the ATLASGAL observation at 850 μm.