Checking the Space-Track catalog this afternoon, it appears that 2017-073D, NORAD ID 43016, is the object ID for all three of the 1U CubeSats on the launch (EagleSat-1 and MakerSat-0 being the other two).
Once JPSoC is able to track the three CubeSats individually, two additional objects will be added to the catalog and then we'll be able to make the determination of which of the three is AO-91.
73,
Paul, N8HM
On Sat, Nov 18, 2017 at 12:46 PM, Paul Stoetzer n8hm@arrl.net wrote:
Celestrak now has four objects from today's launch in their catalog. 2017-073C (Object 43015) tracked Doppler perfectly during the last pass over North America, but the identification of the various objects is subject to change as they separate.
2017-073C 1 43015U 17073C 17322.62015174 -.00000076 00000-0 00000+0 0 9995 2 43015 97.6873 257.7630 0258702 236.7177 305.5679 14.77570475 37
https://celestrak.com/NORAD/elements/tle-new.txt
73,
Paul, N8HM