Exposure
ID
GRAVI.2025-05-20T08:11:50.062_1
Header ID
GRAVI.2025-05-20T08:11:50.062
Date updated
2025-05-20 08:25:54 UTC+0000
Release date
2025-05-20 08:11:50 UTC+0000
UTC Start
2025-05-20 08:11:50.062
UTC End
2025-05-20 08:15:02.062
MJD Start
60815.34155164
MJD End
60815.34377386222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.009717
Ambient temperature (°C)
13.98
Seeing (arcsec)
0.415
Observation
ID
66034
Category
calibrator
Program ID
115.27VK.001
Program Title
UNVEILING THE MASS-LOSS PROCESS OF RED SUPERGIANTS: THE VARIABILITY ACROSS THE MOLECULAR LAYERS AND THE PHOTOSPHERE
Program Type
Normal
PI / COI
JADLOVSKY / WITTKOWSKI / CHIAVASSA / KRAVCHENKO / GONZÁLEZ-TORÀ / KRTICKA / PALADINI / HÖFNER / FREYTAG
Target
ID
49155
Name
HD_152636
RA
253.988066
DEC
-33.50683
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.1040 25.0920 162.8000 163.4000
A0-D0 26.9380 26.7020 90.2000 90.7000
A0-C1 21.2210 21.1520 139.0300 139.7620
B2-D0 30.8430 30.7210 39.3000 39.5000
B2-C1 10.2750 10.2350 39.2300 39.4660
D0-C1 20.5680 20.4860 219.2950 219.5300
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60815.34155164
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 152636
HIERARCH ESO INS SOBJ NAME HD_152636
RA 253.988066
DEC -33.50683
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 25.104
HIERARCH ESO ISS PBL12 END 25.092
HIERARCH ESO ISS PBLA12 START 162.8
HIERARCH ESO ISS PBLA12 END 163.4
HIERARCH ESO ISS PBL13 START 26.938
HIERARCH ESO ISS PBL13 END 26.702
HIERARCH ESO ISS PBLA13 START 90.2
HIERARCH ESO ISS PBLA13 END 90.7
HIERARCH ESO ISS PBL14 START 21.221
HIERARCH ESO ISS PBL14 END 21.152
HIERARCH ESO ISS PBLA14 START 139.03
HIERARCH ESO ISS PBLA14 END 139.762
HIERARCH ESO ISS PBL23 START 30.843
HIERARCH ESO ISS PBL23 END 30.721
HIERARCH ESO ISS PBLA23 START 39.3
HIERARCH ESO ISS PBLA23 END 39.5
HIERARCH ESO ISS PBL24 START 10.275
HIERARCH ESO ISS PBL24 END 10.235
HIERARCH ESO ISS PBLA24 START 39.23
HIERARCH ESO ISS PBLA24 END 39.466
HIERARCH ESO ISS PBL34 START 20.568
HIERARCH ESO ISS PBL34 END 20.486
HIERARCH ESO ISS PBLA34 START 219.295
HIERARCH ESO ISS PBLA34 END 219.53
HIERARCH ESO ISS AMBI TAU0 START 0.009523
HIERARCH ESO ISS AMBI TAU0 END 0.009911
HIERARCH ESO ISS AMBI TEMP 13.98
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.41