BLLac

General information

• Name of the source: BL Lacertae
• Brief description of the source:

- Object type : Blazar

- RA: 22 02 43.3 (hh mm ss), Dec: +42 16 40 (dd mm ss)

Data-taking information

• Dates of data-taking (yyyymmdd): 20210809, 20210810, 20210812, 20210813, 20210814, 20210815, 20210829, 20210830, 20210901, 20210902.

- Date [yyyymmdd] (time of observation h): 20210809 (1.23)

• ZD range (deg): [36, 42]
• AZ range (deg): [181, 226]
• Transmission9km: 0.91-1.03
• Runs: 5580-5584
• Joint observations with MAGIC? : No (5580-5581), Yes (5582-5584)
• Comments: Dark conditions. Huge spike in the trigger rate and decrease HV (23:17).

- Date [yyyymmdd] (time of observation h): 20210810 (2.55)

• ZD range (deg): [36, 58]
• AZ range (deg): [181, 240]
• Transmission9km: 0.90-1.05
• Runs: 5630-5639
• Joint observations with MAGIC? : No?
• Comments: Moon and moon set conditions. Spikes in camera rate. Car flashes. MAGIC LIDAR in our FoV every 4 min (5634-5636).

- Date [yyyymmdd] (time of observation h): 20210812 (2.10)

• ZD range (deg): [36,54]
• AZ range (deg): [184, 235]
• Transmission9km: 0.89-0.96
• Runs: 5696-5704
• Joint observations with MAGIC? : Yes?
• Comments: Moon and moon set conditions. Spikes in camera rate.

- Date [yyyymmdd] (time of observation h): 20210813 ()

• ZD range (deg): Zenith Range
• AZ range (deg): Azimuth Range
• Transmission9km: None, 0.6, 0.46, 0.17, 0.19, 0.28
• Runs: 5719,5722-5726
• Joint observations with MAGIC? : Yes?
• Comments: Moon and moon set conditions. Spikes in camera rate, decreasing anode current.

BL Lac data analysis

Related analysis pages

Analysis_BLLac_July_2021 (fast analysis for LST-1 ATel https://www.astronomerstelegram.org/?read=14783 )

Analysis_BLLac_Aug_2021_Nozaki (Aug 8 flare analysis for LST general meeting, 2021 Nov)

Analysis_BLLac_Aug_2021_Emery (Aug 2-13th and 8th flare analysis for LST general meeting, 2021 Nov. With the likelihood reconstruction method.)