[Dennis]

Spaceweather alerted me to a 0.4 LD (153,000 kms) close whizz by of NEO 2025 LB (16 metre dia) on 3rd June 2025, although at around mag. 17.5 I didn’t have much hope of recording this event.

Luckily, I did find a suitable candidate on one of the 60 sec exposures tracking on the NEO.

The position in the frame is very close to the predicted position from JPL Horizons and very close to the plotted position in The Sky X Pro.

In the composite image, I have overlaid a crop from the field of view in The Sky X Pro showing the plotted position (red dot) versus the candidate NEO on my image.

The stars in the TSX screen capture overlay the dashed trails in the image to check that everything is lined up.

Celestron C9.25 F10 at Prime Focus.
ASI 2600 MM Pro camera Bin 2x2.
A single 60 sec exposure.

UT: 2025-06-03T10:58:39.015
RA: 14 23 37.46
DEC: +22 05 39.7

Brisbane, Australia.

Dennis.