Exposure
ID
GRAVI.2025-09-20T01:01:38.356_1
Header ID
GRAVI.2025-09-20T01:01:38.356
Date updated
2025-09-20 01:11:04 UTC+0000
Release date
2025-09-20 01:01:38 UTC+0000
UTC Start
2025-09-20 01:01:38.356
UTC End
2025-09-20 01:04:18.356
MJD Start
60938.04280505
MJD End
60938.04465690185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.001972
Ambient temperature (°C)
14.35
Seeing (arcsec)
1.12
Observation
ID
70160
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
52059
Name
HD_182477
RA
291.338026
DEC
-13.89674
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 87.2330 86.9660 119.6000 119.9000
A0-J2 126.1150 125.7530 95.9000 96.1000
A0-K0 126.7060 126.4790 74.1860 74.3390
G1-J2 58.0840 58.0370 58.7000 58.8000
G1-K0 90.2780 90.3150 30.6850 30.9060
J2-K0 47.5670 47.5580 355.7270 356.0620
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 60938.04280505
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 182477
HIERARCH ESO INS SOBJ NAME HD_182477
RA 291.338026
DEC -13.89674
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 87.233
HIERARCH ESO ISS PBL12 END 86.966
HIERARCH ESO ISS PBLA12 START 119.6
HIERARCH ESO ISS PBLA12 END 119.9
HIERARCH ESO ISS PBL13 START 126.115
HIERARCH ESO ISS PBL13 END 125.753
HIERARCH ESO ISS PBLA13 START 95.9
HIERARCH ESO ISS PBLA13 END 96.1
HIERARCH ESO ISS PBL14 START 126.706
HIERARCH ESO ISS PBL14 END 126.479
HIERARCH ESO ISS PBLA14 START 74.186
HIERARCH ESO ISS PBLA14 END 74.339
HIERARCH ESO ISS PBL23 START 58.084
HIERARCH ESO ISS PBL23 END 58.037
HIERARCH ESO ISS PBLA23 START 58.7
HIERARCH ESO ISS PBLA23 END 58.8
HIERARCH ESO ISS PBL24 START 90.278
HIERARCH ESO ISS PBL24 END 90.315
HIERARCH ESO ISS PBLA24 START 30.685
HIERARCH ESO ISS PBLA24 END 30.906
HIERARCH ESO ISS PBL34 START 47.567
HIERARCH ESO ISS PBL34 END 47.558
HIERARCH ESO ISS PBLA34 START 355.727
HIERARCH ESO ISS PBLA34 END 356.062
HIERARCH ESO ISS AMBI TAU0 START 0.001934
HIERARCH ESO ISS AMBI TAU0 END 0.00201
HIERARCH ESO ISS AMBI TEMP 14.35
HIERARCH ESO ISS AMBI FWHM START 1.15
HIERARCH ESO ISS AMBI FWHM END 1.09