Comparison of K2 with other comets. In the upper panel, the comet is compared with C/2009 P1, C/1999 T1, and C/2013 R1, which show the closest relative abundance proportions. In the bottom plot, we compare K2 (marked with a magenta star) for each species with the box plot statistic from other infrared results relative to comets observed within 2 au from the Sun (Lippi et al. 2021). For each box, the middle line corresponds to the median, the box is limite to the 25th and 75th percentiles, and the whiskers are limited to the 5th and 95th percentiles. C/2009 P1, C/1999 T1, and C/2013 R1 are also shown with a gray square, diamond, and triangle, respectively.