[1] CWISEP J1446−2317 was discovered as an unusual red object (Spitzer ch1-ch2 = 3.71 ±0.44 mag) in the new combined WISE/NEOWISE catalog, called CatWISE.

[4] Follow-up observations however revised the color to ch1-ch2 = 2.986 ±0.048 mag, making it the fifth reddest object at the time, with an estimated temperature of 310−360 K. The mass was estimated between 2 and 20 MJ for an age range of ~500 Myr–13 Gyr.

If this object is similar to other ultracool dwarf in the solar neighbourhood, it would have an age of about 1.5–6.5 Gyrs and therefore a mass of 4–14 MJ according to the authors.

These observations established this object to have a spectral type of Y1, due to the narrow J-band peaks.

The authors however mention that they detect absorption features in their sample.