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P72-020: Physical properties of near-Sun asteroids via polarimetry

PI: Mikael Granvik

This is a SoftToO (1 hour) and Monitoring program (10.4 hours) using ALFOSC imaging polarimetry of objects with non-sidereal tracking.

The PI will indicate as a comment in the OBs the correct name to use for the target and the exact use of the command tcs.asteph.

Instrument setup:

  • FAPOL: lambda/2
  • ALFOSC: Calcite
  • ALFOSC: UBVRi.

Daytime calibrations:

  • Polarimetric domeflats.
  • Evening twilight flats.
  • Morning alfosc-calibs.

Monitoring Schedule

Date           UT-window     Duration    Comment
                               (min)

20251227       19:00-22:00       38       100004
20260117       19:00-21:00       38       100004
20260207       19:00-21:00       39       100004
20251220       19:00-22:00       39       100004

20260124       03:00-07:00       38       194268
20260127       04:00-07:00       38       194268
20260129       05:00-07:00       38       194268
20260201       05:00-07:00       38       194268  

20260324       20:00-22:00       39       248590
20260328       20:00-00:00       39       248590
20260330       04:00-06:00       39       248590

20251218       19:00-20:00       38       385402 
20251225       19:00-21:00       38       385402 
20251231       19:00-21:30       38       385402 
20260103       19:00-22:00       38       385402
The OB generator will be used to request all observations.

For the observer:

Go to the directory
  cd ~/scripts/72-020
List the available scripts
  ls -lrt
and execute the OB generated scripts for the appropriate date as requested.

Please, update the SoftToO or Monitoring tracking log of this program.

Program Tracking
Proposal 72-020
Semester P72: 20251001 - 20260401
Principal Investigator Mikael Granvik
Programme Physical properties of near-Sun asteroids via polarimetry
Instrument ALFOSC
Time Allocation 10.4 hours monitoring in 5 runs and 1h SoftToO
Total Nights 11.4h
Type Mon+SoftToO
Notes Fixed dates to be scheduled, Soft triggers during Nordic service or Technical nights
Total Time Spent (hh:mm)
Proposal Date Time Type Targets Files Comments Status
Empty table: no tracking data available (yet)

 

The above information is collected from the ToO/Mon reports that have been created by the observer.

Should any of the observations have been carried out using the OB system, you will find additional information HERE

Back to top Last modified: November 25 2025