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Program Tracking
Proposal 72-510
Semester P72: 20251001 - 20260401
Principal Investigator Hakon Dahle
Programme A novel pathway to solving the Hubble tension
Instrument ALFOSC
Time Allocation g-band monitoring
Total Nights 36.6h
Type Monitoring
Notes Fixed dates to be scheduled
Total Time Spent 21:45 (hh:mm)
Proposal Date Time Type Targets Files Comments Status
72-510 2025-10-14 00:19 Monitoring SDSSJ2222 ALIj140076 - ALIj140078 Clear skies, and the seeing was around 1.0". Observed
72-510 2025-10-15 00:00 Monitoring Could not be observed due to bad weather. Failed
72-510 2025-10-18 00:19 Monitoring COOLJ0542-2125 ALIj180169 - ALIj180171 observed through thin clouds and approx. 0.8 arcsec. seeing. Observed
72-510 2025-10-19 00:00 Monitoring None None All targets missed due to weather. Failed
72-510 2025-10-25 00:22 Monitoring COOLJ0542-2125 ALIj250068 - ALIj250070 Observed under partial light cloud cover and seeing 1.1". Observed
72-510 2025-10-28 00:00 Monitoring Could not observe any targets due to 100% humidity Failed
72-510 2025-10-29 00:50 Monitoring SDSSJ0909 ALIj290104 - ALIj290106 Observed with good conditions and dark, clear skies. Observed
72-510 2025-10-30 00:34 Monitoring SDSSJ1004 ALIj300129 - ALIj300131 Good seeing and clear sky Observed
72-510 2025-11-13 00:00 Monitoring 100% humidity Failed
72-510 2025-11-16 01:04 Monitoring COOLJ0542-2125, COOLJ1153, SDSSJ1326 ALIk160150 - ALIk160152 , ALIk160210 - ALIk160215 COOLJ1153 failed to meet 1.3" seeing requirements; marked as failed. Difficulty getting guide star for 1326, so had to restart OB (time not included). Observed
72-510 2025-11-17 00:34 Monitoring SDSSJ1004 ALIk170169 - ALIk170171 Observed under clear sky and seeing around 1". Observed
72-510 2025-11-18 00:49 Monitoring SDSSJ0909 0909_gband_167_deep Observed under clear sky and good seeing. Observed
72-510 2025-11-19 00:00 Monitoring Missed due to humidity and icy conditions Failed
72-510 2025-11-23 00:19 Monitoring COOLJ0542-2125 ALIk230134 - ALIk230136 Clear skies, and the seeing was around 1.3". Observed
72-510 2025-11-24 00:00 Monitoring Could not be observed due to bad weather. Failed
72-510 2025-11-25 00:48 Monitoring SDSSJ0909 ALIk250124 - ALIk250126 Good conditions Observed
72-510 2025-11-26 00:00 Monitoring Couldn't be observed due to bad weather. Failed
72-510 2025-11-27 00:00 Monitoring - - Missed due to high seeing during the night. Failed
72-510 2025-12-12 00:00 Monitoring none none Ice and storm. No opening. Failed
72-510 2025-12-13 00:00 Monitoring none none Bad weather. No opening. Failed
72-510 2025-12-14 00:00 Monitoring No targets observed as the telescope was closed all night due to bad weather. Failed
72-510 2025-12-15 00:11 Monitoring ALIl150018 - ALIl150020 SDSSJ1326 Observed one target with clear skies and seeing of 2-3". Missed the other due to weather. Observed
72-510 2025-12-16 00:34 Monitoring SDSSJ1004 ALIl160236 - ALIl160238 Observed with clear skies and seeing around 1.5". Observed
72-510 2025-12-17 00:35 Monitoring COOLJ1153 ALIl170469 - ALIl170471 Observed during high clouds and seeing <1.3". Observed
72-510 2025-12-18 00:19 Monitoring COOLJ0335-1927 ALIl180141 - ALIl180143 Observed during thin clouds and seeing below 1.3". Observed
72-510 2025-12-20 00:19 Monitoring COOLJ0542-2125 ALIl200161 - ALIl200163 Observed at high airmass and variable seeing Observed
72-510 2025-12-21 00:34 Monitoring COOLJ1153 ALIl210229 - ALIl210231 Observed in high humidity and some thin clouds Observed
72-510 2025-12-25 00:18 Monitoring COOLJ0542-2125 ALIl250154 - ALIl250156 Clear skies, and the seeing was around 1.0". Observed
72-510 2025-12-26 00:49 Monitoring SDSSJ0909 ALIl260434 - ALIl260436 Clear skies, and the seeing was around 1.0". Observed
72-510 2025-12-27 00:33 Monitoring SDSSJ1004 ALIl270213 - ALIl270215 Clear skies, and the seeing was around 1.1". Observed
72-510 2025-12-28 00:34 Monitoring COOLJ1153 ALIl280180 - ALIl280182 Clear skies and great seeing Observed
72-510 2025-12-30 00:10 Monitoring SDSSJ1326 ALIl300195 - ALIl300197 Observed through clear skies and approx. 1 arcsec. seeing. Observed
72-510 2026-01-12 00:05 Monitoring SDSSJ2222 ALJa120074 - ALJa120075 During the observation, the wind got very strong, making it necessary to close the lower hatch of the dome. Since the target was below 55 degrees zenith, it was not possible to continue the observation and it was interrupted. Failed
72-510 2026-01-13 00:00 Monitoring Monitor programme not observed as the telescope was closed all night due to high levels of humidity and icy conditions. Failed
72-510 2026-01-14 01:21 Monitoring SDSSJ0909, COOLJ1153 ALJa140143 - ALJa140145, ALJa140160 - ALJa140162 Both targets observed through thin clouds and seeing fluctuating around 1 arcsec. Observed
72-510 2026-01-15 00:35 Monitoring SDSSJ1004 ALJa150295 - ALJa150297 Observed in clear skies and seeing below 1.0". Observed
72-510 2026-01-19 00:35 Monitoring COOLJ1153 ALJa190143 - ALJa190145 Observed through thin clouds and approx. 1.5 arcsec. seeing. Observed
72-510 2026-01-22 00:12 Monitoring SDSSJ1326 ALJa220143 - ALJa220145 Observed under clear skies and seeing 1.1". Observed
72-510 2026-01-23 00:34 Monitoring SDSSJ1004 ALJa230317 - ALJa230319 Observed under clear skies. Seeing fluctuated up to 2", please review data. Observed
72-510 2026-01-24 00:48 Monitoring SDSSJ0909 ALJa240121 - ALJa240123 Observed under clear skies and dimm seeing around 1". Observed
72-510 2026-01-26 00:34 Monitoring COOLJ1153 ALJa260326 - ALJa260328 Windy, and the seeing was around 1.2". Observed
72-510 2026-01-29 00:10 Monitoring SDSSJ1326 ALJa290410 - ALJa290412 good seeing Observed
72-510 2026-02-09 01:00 Monitoring SDSSJ0909, SDSSJ1326 ALJb090143 - ALJb090145, ALJb090170 - ALJb090172 Clear skies, and the seeing was around 1.0". Observed
72-510 2026-02-12 00:35 Monitoring COOLJ1153 ALJb120335 - ALJb120337 Observed through thin clouds and approx. 1.3 arcsec. seeing. Observed
72-510 2026-02-13 00:33 Monitoring SDSSJ1004 ALJb130163 - ALJb130165 Observed through thin clouds and approx. 1.2 arcsec. seeing. Observed
72-510 2026-02-17 00:35 Monitoring COOLJ1153 ALJb170136 - ALJb170138 Target observed with seeing around 1.1" and clear skies. Observed
72-510 2026-02-19 00:59 Monitoring SDSSJ0909, SDSSJ1326 ALJb190215 - ALJb190217, ALJb190231 - ALJb190233 Clear skies, and the seeing was oscillating between 0.7" and 1.2". Observed
72-510 2026-02-21 00:34 Monitoring SDSSJ1004 ALJb210328 - ALJb210330 Observed under clear skies and DIMM seeing sub-arcsec. Observed
72-510 2026-02-23 00:34 Monitoring COOLJ1153 ALJb230210 - ALJb230212 Observed with clear sky and seeing around 1.0'' Observed
72-510 2026-03-11 00:00 Monitoring Whole night lost due to freezing conditions. Failed
72-510 2026-03-12 01:07 Monitoring SDSSJ1004, COOLJ1153 ALJc120143 - ALJc120145, ALJc120159 - ALJc120161 Both targets observed with clear skies. Observed
72-510 2026-03-19 00:00 Monitoring Whole night lost due to weather. Failed
72-510 2026-03-23 00:00 Monitoring Entire night lost to weather. 100% humidity and rain. Failed
72-510 2026-03-24 00:00 Monitoring Entire night lost to weather. Failed
72-510 2026-03-25 00:00 Monitoring Entire night lost to weather. Failed

 

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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