ROS
R
01
TUW
_R_
2025
001
0000
_
15M
_
05S
_
AA
.
rnx
.gz
optional
Station Block
9 chars
SIT · T · NN · AGC
e.g. ROSR01TUW
Data Source
3 chars · literal
Receiver = _R_
always _R_
Start Epoch
11 chars
YYYY · DOY · HHMM
e.g. 20250010000
Period
3 chars
File duration
15M · 01H · 01D
Sampling
3 chars
Obs. interval
05S · 30S · 01S
Content
2 chars
Content code
always AA
Format
3–4 chars
File format ext.
rnx · sbf · ubx
LEGEND
Station
Source
Epoch
Period / Sampling
Content
Format
Optional
Separator
* T: R = reference receiver (above canopy) · A = active receiver (below canopy)