Looking for ATEX but found Lacrosse 2 91-017A #21147 2

Could not see ATEX , but found this one in the same angle unknown to me.
utc 16:53.04 Canon 20 d 95 mm 13 sec exp star left epsilon curvi end star right of track gamma corvi.













Greg Roberts (Specialist astronomer retired, Cape Town Republic of South Africa ) analyzed image with his specialist software and identified this satellite as follow soon after this publication:
Morning Gerhard
I think ATEX would have been a bit too faint for your system-- it would have been running parallel to the faint parallel lines in your picture - possibly about mag +8. The unknown object was Lacrosse 2 91-017A #21147 at a range of about 1017 km and magnitude about +4.5--could have been brighter. The field of view is 13.30 x 8.77 degrees and the image scale is 60.91 arc sec/pixel. Satellite was moving from left to right, coordinates for trail are start RA 12h03m01s Dec -23d 27'42" (J2000) end RA 12h18m57s Dec -18d 20'08" (J2000) centre of field of view = RA 12h11m24s Dec -19d 13'56" (J2000)
Cheers
Greg