to +116d, the  was also observed in $JHK$ near-infrared (NIR) bands with the 0.6-m REM/REMIR at La Silla [@zerbi04]. The object was clearly visible in the $J$ and $H$ passbands, while it remained undetected in $K$. The instrumental magnitudes were standardized using the 2MASS standards available in the field of . The calibrated $JH$ magnitudes are listed in Table \[tab:remsn\].

X-ray Observations {#obs:xrt}
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The [*Swift*]{} XRT observations were obtained simultaneously with the UVOT observations. To search for X-ray emission from , we extracted X-ray counts from a circular region with a 10 pixel radius ($23\farcs7$, corresponding to the XRT on-axis 90% encircled energy radius) centered on the optical position of the SN. The background was extracted locally from a source-free region of $40\arcsec$ radius to account for the detector, sky background, and the diffuse emission from the host galaxy.

No X-ray source is detected in the merged 27.1 ks XRT data obtained in photon-counting mode. The $3\sigma$ upper limit to the XRT net count rate is $7.2 \times 10^{-4}~{\rm cts~s}^{-1}$, corresponding to an unabsorbed (0.2–10 keV band) X-ray flux of $f_{0.2-10} < 3.4 \times 10^{-14}~{\rm erg~cm}^{-2}~{\rm s}^{-1}$ and a luminosity of $L_{0.2-10} < 7.0 \times 10^{38}~{\rm erg~s}^{-1}$ for an 