Exposure
ID
GRAVI.2025-09-01T00:36:26.869_1
Header ID
GRAVI.2025-09-01T00:36:26.869
Date updated
2025-09-01 00:45:55 UTC+0000
Release date
2025-09-01 00:36:26 UTC+0000
UTC Start
2025-09-01 00:36:26.869
UTC End
2025-09-01 00:39:06.869
MJD Start
60919.02531098
MJD End
60919.02716283186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0019605
Ambient temperature (°C)
7.12
Seeing (arcsec)
1.35
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 89.9400 90.0510 112.7000 112.8000
A0-J2 126.5700 126.8880 89.8000 90.0000
A0-K0 123.6750 124.0480 67.6270 67.8750
G1-J2 55.9900 56.1440 51.1000 51.4000
G1-K0 87.5640 87.6660 20.9960 21.3460
J2-K0 48.1700 48.1490 345.3220 345.5990
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 60919.02531098
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 89.94
HIERARCH ESO ISS PBL12 END 90.051
HIERARCH ESO ISS PBLA12 START 112.7
HIERARCH ESO ISS PBLA12 END 112.8
HIERARCH ESO ISS PBL13 START 126.57
HIERARCH ESO ISS PBL13 END 126.888
HIERARCH ESO ISS PBLA13 START 89.8
HIERARCH ESO ISS PBLA13 END 90.0
HIERARCH ESO ISS PBL14 START 123.675
HIERARCH ESO ISS PBL14 END 124.048
HIERARCH ESO ISS PBLA14 START 67.627
HIERARCH ESO ISS PBLA14 END 67.875
HIERARCH ESO ISS PBL23 START 55.99
HIERARCH ESO ISS PBL23 END 56.144
HIERARCH ESO ISS PBLA23 START 51.1
HIERARCH ESO ISS PBLA23 END 51.4
HIERARCH ESO ISS PBL24 START 87.564
HIERARCH ESO ISS PBL24 END 87.666
HIERARCH ESO ISS PBLA24 START 20.996
HIERARCH ESO ISS PBLA24 END 21.346
HIERARCH ESO ISS PBL34 START 48.17
HIERARCH ESO ISS PBL34 END 48.149
HIERARCH ESO ISS PBLA34 START 345.322
HIERARCH ESO ISS PBLA34 END 345.599
HIERARCH ESO ISS AMBI TAU0 START 0.001936
HIERARCH ESO ISS AMBI TAU0 END 0.001985
HIERARCH ESO ISS AMBI TEMP 7.12
HIERARCH ESO ISS AMBI FWHM START 1.37
HIERARCH ESO ISS AMBI FWHM END 1.33