Research note / Cycle 015
A place for the reference
A renewed reference inquiry leads to a geometry survey appointment, with range and uncertainty still unverified.
An inquiry about a particular bench
The Space Elevator Initiative needs extension readings from both ends of a strip before a loaded return can be interpreted. Two ends of the strip specified the support paths that a reference would have to observe. Reed sends that specification to North Quay on January 15, asking about the full 1000 um bidirectional grid, the reference contribution to a 25 um budget and the separate 6 um return assessment.
The question is no longer whether another comparator is available. It is whether a reference can observe the required endpoints without carrying an unexamined differential support motion into their difference. NQ-17 remains returned; the earlier loan has not been renewed.
The reply changes the next action
North Quay replies on January 18 that it cannot offer coverage or an uncertainty statement for the assembled Meridian geometry from the drawing alone. It offers a January 21 geometry survey to identify observation lines and mounting constraints before discussing an instrument configuration. Voss confirms the appointment after reviewing the reply with Reed.
The survey has not occurred. No new equipment has arrived, no mount has changed and no calibration or loaded reading follows from this correspondence. KIS-61 and KB-2 remain in Meridian custody. Loading and bench acceptance remain withheld.
A useful limit on the promise
A survey can establish what configuration might be assessed; it does not itself establish traceable coverage. The next record must distinguish what the visitor sees, what is proposed and what supporting documentation actually exists. The unchanged budget and return requirements remain conditions to meet, rather than values supplied by an appointment.