content_image/327529.jpg
<img src='content_image/327529.jpg'>

## 2.4. Ephemerides 

By including the 2014 October 7 HiRISE astrometry as well as some ad- ditional ground-based astrometry through 2014 October 13, which was the deadline for the final ephemeris delivery, we computed JPL solution 101. Ta- ble 3 shows the corresponding osculating orbital elements, nongravitational parameters, and close approach distance and time. Figure 1 shows the cor- responding b -plane prediction. 

Solution 101 was used to successfully observe C/2013 A1 during the close approach to Mars. The data analysis of the acquired images 3 is still ongoing, though some preliminary results were reported by Delamere et al. (2014). 

