1 — Job details (carried into the report and the StarNet .DAT header)
2 — Fieldbook
Opening R.L. (first row, m):
Closing R.L. (only if closing onto a DIFFERENT known B.M.):
A run that ends back on its start point (same point name) is detected as a
closed loop automatically — the closing R.L. is then the opening R.L. and this box is ignored.
Control R.L. (m):
A control row is ticked (column C), so the opening R.L. is computed
from the control R.L. — it is filled in after Process.
+ Row
Insert row above selected
Delete selected row
Mark selected row as Tape Drop 🌡
Process ▶
3 — Run schematic (not to scale)
One staff per booked row, drawn at its reduced level (rises and falls
exaggerated). The surveyor shoots the opening B.S at setup 1; later setups get a tripod.
Tape-drop rows show the hanging tape and weight. Redrawn on every Process.
4 — Arithmetic checks
5 — Misclosure
Distribute:
Not distributed (report only)
Evenly per instrument setup
Proportional to distance levelled
Apply
Even: each setup carries an equal share. Distance: shares follow the
metres levelled (needs a distance on every sight). Adjusted R.L.s appear in their own
column — the raw reduction is never overwritten.
6 — Report & StarNet .DAT export
Print / PDF report
Save text report…
Save fieldbook (.tdbook)…
Open fieldbook…
Stations for the .DAT (named points):
Height differences from:
Raw reduced R.L.s — tape-corrected, misclosure left for StarNet (recommended)
Adjusted R.L.s — misclosure already distributed
StarNet runs its own least-squares adjustment, so it normally wants the
RAW differences — distributing the misclosure first would hide it from StarNet. Export
adjusted values only when the .DAT must match issued/adjusted levels. Tape corrections
are applied in both cases (they are a systematic correction, not an adjustment).
Point names are UPPERCASED and non-alphanumerics become _ (StarNet uses "-" as the
FROM-TO separator).
Download .DAT
Preview .DAT
How the book works
B.S backsight — first reading after setting up the level (opens each setup)
I.S intermediate sight — any reading between the B.S and F.S of a setup
F.S foresight — last reading before moving the level
CP change point — F.S and the new B.S booked on the same row
🌡 TD tape drop — a change point read on the suspended tape instead of a staff;
flag it and TapeDrop corrects the B.S for temperature + calibration
C control row — tick column C to hold that row at a known R.L.; the whole run is
re-datumed onto it and the opening R.L. becomes a computed value
R.L. reduced level, computed on Process by Rise & Fall or Height of Collimation
(both give identical R.L.s — the choice sets the booking columns and checks shown)
1 — Setup
Tape used:
Temperature (°C):
Height transfer:
Down the shaft (known height ABOVE the station)
Up the shaft (known height BELOW the station)
2 — Station
Station final height (m):
Tape drop length (m):
Enter the height as currently computed from the UNCORRECTED tape drop.
Correction breakdown
Vertical nominal distance: --
Temperature adjustment: --
Closest calibrated nominal: --
Lab value at that nominal: --
Calibration adjustment: --
Total adjustment: --
3 — Adjusted height
Adjusted station height:
--
Change to height: --
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