Exposure
ID
GRAVI.2025-06-24T04:50:37.114_1
Header ID
GRAVI.2025-06-24T04:50:37.114
Date updated
2025-06-24 05:05:47 UTC+0000
Release date
2025-06-24 04:50:37 UTC+0000
UTC Start
2025-06-24 04:50:37.114
UTC End
2025-06-24 04:53:49.114
MJD Start
60850.20181845
MJD End
60850.20404067222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0042435
Ambient temperature (°C)
11.12
Seeing (arcsec)
0.51
Observation
ID
68225
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
50708
Name
HD_152636
RA
253.988065
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 25.2820 25.2760 153.0000 153.5000
A0-D0 30.1810 30.0360 81.8000 82.3000
A0-C1 22.2380 22.1920 127.6550 128.2590
B2-D0 32.5110 32.4350 34.4000 34.8000
B2-C1 10.8300 10.8050 34.4030 34.7220
D0-C1 21.6810 21.6300 214.4680 214.7870
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 60850.20181845
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 152636
HIERARCH ESO INS SOBJ NAME HD_152636
RA 253.988065
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 25.282
HIERARCH ESO ISS PBL12 END 25.276
HIERARCH ESO ISS PBLA12 START 153.0
HIERARCH ESO ISS PBLA12 END 153.5
HIERARCH ESO ISS PBL13 START 30.181
HIERARCH ESO ISS PBL13 END 30.036
HIERARCH ESO ISS PBLA13 START 81.8
HIERARCH ESO ISS PBLA13 END 82.3
HIERARCH ESO ISS PBL14 START 22.238
HIERARCH ESO ISS PBL14 END 22.192
HIERARCH ESO ISS PBLA14 START 127.655
HIERARCH ESO ISS PBLA14 END 128.259
HIERARCH ESO ISS PBL23 START 32.511
HIERARCH ESO ISS PBL23 END 32.435
HIERARCH ESO ISS PBLA23 START 34.4
HIERARCH ESO ISS PBLA23 END 34.8
HIERARCH ESO ISS PBL24 START 10.83
HIERARCH ESO ISS PBL24 END 10.805
HIERARCH ESO ISS PBLA24 START 34.403
HIERARCH ESO ISS PBLA24 END 34.722
HIERARCH ESO ISS PBL34 START 21.681
HIERARCH ESO ISS PBL34 END 21.63
HIERARCH ESO ISS PBLA34 START 214.468
HIERARCH ESO ISS PBLA34 END 214.787
HIERARCH ESO ISS AMBI TAU0 START 0.004114
HIERARCH ESO ISS AMBI TAU0 END 0.004373
HIERARCH ESO ISS AMBI TEMP 11.12
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.5