Opened 6 years ago

Last modified 4 years ago

#542 closed flight processing

MA14/16, flight day 241/2014, Bosnia — at Version 8

Reported by: dac Owned by:
Priority: alpha 4 medium Milestone: 2014 data processing completion
Component: Processing: general Keywords:
Cc: Other processors:

Description (last modified by dap)

Data location: /users/rsg/arsf/arsf_data/2014/flight_data/malaysia/MA14_16-2014_241_Sarajavo

Data arrived from ARSF via network transfer on 19/12/2014

MA14/16 Scientific objective: Unknown

MA14/16 Priority: a4m

PI: Andy Ford

Notes: No RCD data Large difference between fps_set and fps_qpf

Sensors:

Fenix (Requested)
LiDAR (Requested)
RCD (Requested)
FW LiDAR (Requested)

Change History (8)

comment:1 Changed 6 years ago by dac

Basestation position, through PPP is:

Lat 43 49 33.277701
Lon 18 19 59.53932
Height 554.971

comment:2 Changed 6 years ago by dac

Processed Nav data. Solution is acceptable for most of the flightlines (+/- 5 cm lat, +/- 10 cm lon). Ambiguity fix is 1 (should be 2).

Will need refining later but sufficient for now to process hyperspectral data in order to check for potential frame rate problems (high priority).

comment:3 Changed 6 years ago by dac

  • Processed 4 fenix flightlines.
  • Changed fps to fps_qpf in header.
  • Needed to set realtime_nav to false in header, with true flightlines were curved and half had missing lines.
  • Checked overlapping lines (10 and 11), line up well with SCT values of 0.8 and 2 respectively.
  • Confirmed location using Landsat 8 panchromatic scene (15 m res) and GoogleEarth
  • Emailed Ops to notify of frame rate issue.

comment:4 Changed 6 years ago by dac

Processed 4 lidar lines to check they were OK.
No problems observed. Waiting for remaining lines to be downloaded and lidar boresight before proceeding.

comment:5 Changed 6 years ago by dap

  • Description modified (diff)

comment:6 Changed 6 years ago by dap

LiDAR Processing

Started processing all flight lines, outputting them into processing/als50/las, using boresight roll and pitch error values.

comment:7 Changed 6 years ago by dap

LiDAR Processing

The pitch error value 0.000163180 and roll error value -0.006285 seem consistent for all flight lines so will continue with processing the full waveform data with these values.

There were five flight lines which wouldn't process with ALSPP (115939, 124251, 120309, 125209 and 120334). These weren't recorded in the log sheet, so am assuming these contain no useful data.

Additionally, flight line 125234 processed with ALSPP but the resultant file seems to only contain 66 points and the file size is only ~25kB, so I won't include the files associated with this flight line in the data delivery.

comment:8 Changed 6 years ago by dap

  • Description modified (diff)
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