Fig. 4: Optical observations of BW3 and its associated LVA taken on 10 November 2022 (UT).

The images are subframes of the full Flexible Image Transport System (FITS) images. a–f, Images were taken simultaneously using the Chakana (CKOIR) 0.6 m (b) and CTIO 0.9 m (c) telescopes at 23:55:00 UT, whereas the first observation (a) and final three observations (d–f) were taken with the Chakana 0.6 m telescope at 23:54:00 UT (a) and at 23:56:00 UT (d), 23:57:00 UT (e) and 23:58:00 UT (f), respectively, with the final three observations showing increasing angular separation. The measured range-corrected magnitudes are provided for both BW3 and the LVA, with the exception of d. Because of the two tracks being very close to each other and in some cases, overlapping, it was not possible to measure the individual magnitudes of each track. The magnitude of V ≈ 4.9 given for BW3 (d) is effectively the total brightness of both tracks. The azimuth (AZ) and elevation (El) of each observation is given in the upper left corners of each image.