Instructions from the PIDear NOT observer and staff.This is a set of instructions for NOT monitoring programme P70-502 (PI:Håkon Dahle), scheduled for service observations. The purpose is to monitor three of the five currently known gravitationally lensed quasars where the lens is a galaxy cluster. The main purpose of the observations is to use the light curves to make time delay measurements between multiple lensed quasar images in order to estimate the value of the Hubble constant. We will also determine the level of microlensing in each lens system. The target information and the observing strategy are reported below. Please let us know whether you carried out these observations. Thank you!
Best regards, ------------ For the "monitoring" observations use the script indicated by the OB.
Calibrations:For calibration we request:
- A set of three twilight flats for the SDSS g' filter
Available scriptsGo to the directorycd ~/scripts/71-510 For these observations use the appropriate script for the date, complie the OB if needed.
ObservationsCJ0335-1927 20 minutes 15 epochsCJ0542-2125 20 minutes 17 epochsJ0909+44, 20 minutes 6 epochsCJ1153+0756 35 minutes 15 epochsJ1326+48 13 minutes 15 epochsJ2222+2745 20 minutes 4 epochs
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 |
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