When I looked at your nice animation of P/2013 EW90 I recognized the star field and realized that I had collected images of the comet a few hours before you did. That made me wonder if I had your other object in my field of view and indeed I did. The other object in your animation is Asteroid 2016 AW93 according to the MPC and it is magnitude 20 per the MPC, I measure it 1 magnitude dimmer than EW90 which in my images is magnitude 18.9. At 0658UT the comet was at 10h06m40.2s -02*17'31" and the asteroid was at 10h06m42.4s -02*16'59". The asteroid was 44" PA 49* from the comet as I measured it in my images. I had just submitted an image of the comet to the site, so I went back and marked your asteroid on it and am attaching it below. It made for an interesting task on a night when it is snowing here in the desert, it has been snowing, hailing, sleeting and raining for the last 2 days, not a bad thing, we need the moisture.
Hi Mike, hi Uwe,
sorry for beeing back so late...
I realized the difference in time of just around 17 hours: Mikes image was taken earlier than the exposures of mine. And that lead me to the extrapolation back in time of the position of both objects moving in my animated gif: indeed, comet and asteroid would meet around the position marked in Mikes image.
For me, what is very exciting on these images: they demonstrate, that a potential unknown dim object could be found in other exposures with different timestamp as well. And all these images were taken with rather moderate equipment.
Finally, I updated mpcorb.dat and let Guide show asteroids brighter 21mag (yes, I should have done both things earlier !).
And 2016 AW93 was shown at that very observed position of ours...
Have fun, and stay healthy !
Kind regards / Freundliche Grüße