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P71-503

P71-503: Superorbital variability of the Be stellar disk in LSI +61303

P.I.: Petri Vaisanen

This is a Monitoring program using FIES.

Instrument setup

  • FIES : Low-res fiber F1

  • ALFOSC : FAPOL, lambda/2, UBVRi

Afternoon instructions

  • Run afternoon calibrations: fies-calibs -fib 1

Observing instructions

  • On the Queue page, make sure the OB-generated observing script is written to disk, or else 'compile'

  • Go to directory: cd ~/obs/scripts/71-503/ and do ls -lrt

  • Start the requested OB generated script

Program Tracking
Proposal 71-503
Semester P71: 20250401 - 20251001
Principal Investigator Petri Vaisanen
Programme Superorbital variability of the Be stellar disk in LS I +61303
Instrument FIES+ALFOSC
Time Allocation Aug-Sep
Total Nights 18h
Type Monitoring
Notes P71 only
Total Time Spent 06:45 (hh:mm)
Proposal Date Time Type Targets Files Comments Status
71-503 2025-07-20 01:11 Monitoring BDp59389, LSI+61303, HD21447, ALIg200134-ALIg200193, FIIg200113 - FIIg200115 Observed with clear skies. Last target was partially observed in nautical twilight. Observed
71-503 2025-07-25 00:45 Monitoring LSI+61303 ALIg250175 - ALIg250194, FIIg250114 - FIIg250116 Target observed with clear skies and approx. 1.2 arcsec. seeing. For the FIES block, during first attempt, we had a ccd controller error. The exposure was canceled early and restarted. Registered as failed, but the first readout might still be useful. Observed
71-503 2025-07-28 00:46 Monitoring LSI+61303 FIIg280098 - FIIg280100, ALIg280104 - ALIg280123 Observed with subarcsec seeing and under clear sky Observed
71-503 2025-07-31 00:45 Monitoring LSI+61303 ALIg310148 - ALIg310167, FIIg310113 - FIIg310115 Observed under clear skies and seeing around 1". Observed
71-503 2025-08-02 00:48 Monitoring LSI+61303 FIIh020140 - FIIh020142, ALIh020097 - ALIh020116 Target observed with clear skies and seeing around 0.6-1.0'' seeing Observed
71-503 2025-08-06 01:01 Monitoring HD21447, LSI+61303, BDp59389 ALIh060165-ALIh060224, FIIh060086 - FIIh060088 Observed under dusty, but clear skies and good seeing. Moon 90%. Observed
71-503 2025-08-07 00:45 Monitoring LSI+61303 ALIh070154 - ALIh070173, FIIh070104 - FIIh070106, ALIh070182 - ALIh070201 During the observations, the conditions quickly became overcast, and therefore whole Alfosc group repeated as the sky cleared up rapidly again. For the fies group, a few thick clouds in the first integration. Otherwise observed with thin clouds, dusty conditions and approx. 1 arcsec. seeing. Observed
71-503 2025-08-11 00:44 Monitoring LSI+61303 ALIh110182 - ALIh110201, FIIh110107 - FIIh110109 Both observed with thin clouds and seeing around 0.8". Observed

 

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: March 11 2025