and \[res:ColBol\] we cover the estimates of distance, reddening, intrinsic color and bolometric fluxes. The main physical parameters of the explosion and the mass of the progenitor are derived in Section \[res:parameter\] while a comparison of its properties with other SNe is given in Section \[res:comp\]. The conclusion of the paper is given in the last section. The epoch of explosion JD = 2454825.6 (§\[res:broadband\]) is considered throughout the paper and the times of pre-/post-explosion are referred with $-/+$ signs respectively.

observation and data reduction {#obs}
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Photometric Observation {#obs:phot}
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The prompt follow-up of the event was carried out by the ground-based ROTSE-IIIb telescope[^1] having sensitivity in the wavelength region from 0.35 to 1.0  with a peak around 0.6 [@quimby07]. The SN was first detected in the ROTSE-IIIb images on 2008 December 24.45 and it was monitored at 58 phases until +115d. The initial detections of the SN evaded the automated pipeline identification due to poor image quality and low signal-to-noise ratio (S/N). The data reduction was performed afresh on all the available ROTSE data. In order to remove the contamination of the true SN-flux from the underlying galaxy, a pre-SN galaxy template was constructed from images taken in 