Exposure
ID
GRAVI.2025-09-20T00:51:38.331_1
Header ID
GRAVI.2025-09-20T00:51:38.331
Date updated
2025-09-20 01:01:05 UTC+0000
Release date
2025-09-20 00:51:38 UTC+0000
UTC Start
2025-09-20 00:51:38.331
UTC End
2025-09-20 00:54:18.331
MJD Start
60938.03586031
MJD End
60938.03771216186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0022234999999999998
Ambient temperature (°C)
14.21
Seeing (arcsec)
1.1400000000000001
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 88.0670 87.8310 118.7000 119.0000
A0-J2 127.1940 126.8960 95.2000 95.4000
A0-K0 127.3350 127.1700 73.6730 73.8300
G1-J2 58.1950 58.1700 58.1000 58.3000
G1-K0 90.1270 90.1760 29.9260 30.1580
J2-K0 47.6030 47.5920 354.6170 354.9470
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 60938.03586031
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 88.067
HIERARCH ESO ISS PBL12 END 87.831
HIERARCH ESO ISS PBLA12 START 118.7
HIERARCH ESO ISS PBLA12 END 119.0
HIERARCH ESO ISS PBL13 START 127.194
HIERARCH ESO ISS PBL13 END 126.896
HIERARCH ESO ISS PBLA13 START 95.2
HIERARCH ESO ISS PBLA13 END 95.4
HIERARCH ESO ISS PBL14 START 127.335
HIERARCH ESO ISS PBL14 END 127.17
HIERARCH ESO ISS PBLA14 START 73.673
HIERARCH ESO ISS PBLA14 END 73.83
HIERARCH ESO ISS PBL23 START 58.195
HIERARCH ESO ISS PBL23 END 58.17
HIERARCH ESO ISS PBLA23 START 58.1
HIERARCH ESO ISS PBLA23 END 58.3
HIERARCH ESO ISS PBL24 START 90.127
HIERARCH ESO ISS PBL24 END 90.176
HIERARCH ESO ISS PBLA24 START 29.926
HIERARCH ESO ISS PBLA24 END 30.158
HIERARCH ESO ISS PBL34 START 47.603
HIERARCH ESO ISS PBL34 END 47.592
HIERARCH ESO ISS PBLA34 START 354.617
HIERARCH ESO ISS PBLA34 END 354.947
HIERARCH ESO ISS AMBI TAU0 START 0.002377
HIERARCH ESO ISS AMBI TAU0 END 0.00207
HIERARCH ESO ISS AMBI TEMP 14.21
HIERARCH ESO ISS AMBI FWHM START 1.22
HIERARCH ESO ISS AMBI FWHM END 1.06