Exposure
ID
GRAVI.2025-09-01T00:26:26.844_1
Header ID
GRAVI.2025-09-01T00:26:26.844
Date updated
2025-09-01 00:36:01 UTC+0000
Release date
2025-09-01 00:26:26 UTC+0000
UTC Start
2025-09-01 00:26:26.844
UTC End
2025-09-01 00:29:06.844
MJD Start
60919.01836625
MJD End
60919.020218101854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0021985
Ambient temperature (°C)
6.87
Seeing (arcsec)
1.26
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 89.4750 89.6280 112.2000 112.3000
A0-J2 125.3500 125.7360 89.2000 89.4000
A0-K0 122.2940 122.7230 66.7570 67.0200
G1-J2 55.4360 55.6060 50.0000 50.4000
G1-K0 87.2170 87.3200 19.7850 20.1490
J2-K0 48.2430 48.2220 344.4050 344.6740
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 60919.01836625
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 89.475
HIERARCH ESO ISS PBL12 END 89.628
HIERARCH ESO ISS PBLA12 START 112.2
HIERARCH ESO ISS PBLA12 END 112.3
HIERARCH ESO ISS PBL13 START 125.35
HIERARCH ESO ISS PBL13 END 125.736
HIERARCH ESO ISS PBLA13 START 89.2
HIERARCH ESO ISS PBLA13 END 89.4
HIERARCH ESO ISS PBL14 START 122.294
HIERARCH ESO ISS PBL14 END 122.723
HIERARCH ESO ISS PBLA14 START 66.757
HIERARCH ESO ISS PBLA14 END 67.02
HIERARCH ESO ISS PBL23 START 55.436
HIERARCH ESO ISS PBL23 END 55.606
HIERARCH ESO ISS PBLA23 START 50.0
HIERARCH ESO ISS PBLA23 END 50.4
HIERARCH ESO ISS PBL24 START 87.217
HIERARCH ESO ISS PBL24 END 87.32
HIERARCH ESO ISS PBLA24 START 19.785
HIERARCH ESO ISS PBLA24 END 20.149
HIERARCH ESO ISS PBL34 START 48.243
HIERARCH ESO ISS PBL34 END 48.222
HIERARCH ESO ISS PBLA34 START 344.405
HIERARCH ESO ISS PBLA34 END 344.674
HIERARCH ESO ISS AMBI TAU0 START 0.002221
HIERARCH ESO ISS AMBI TAU0 END 0.002176
HIERARCH ESO ISS AMBI TEMP 6.87
HIERARCH ESO ISS AMBI FWHM START 1.27
HIERARCH ESO ISS AMBI FWHM END 1.25