Taken picture of the TMS ISC table to survey the components already mounted on the table What it is clearly missing are the two periscopes, the glass baffle, the glass beam dump, and some connectors. Picture of the underside of the table should show that all the ballast masses are there The total current weight of the table is 52.5 kg (Keita)
What were missing from the table when the weight of the table was measured 52.5kg, as far as I can tell: 2xHAM connector brackets (in the picture, but they were not there when measured). Beam diverter cable, cable clamps, and a 25pin connector (not yet installed). Total of 9 posts with black glass mount and total of 10 glass plates to be mounted on the posts (total of 10, not 9, because one of the posts will have two plates) (not yet installed). Tiny black glasses behind high reflectors and tiny aluminum holders for them (not installed yet).
And neither of two periscope assemblies (including mirrors) are not included in the weight, as they are not yet installed.
And most importantly, this is H2! H2!!!!!!