Exposure
ID
GRAVI.2025-04-06T07:12:03.237_1
Header ID
GRAVI.2025-04-06T07:12:03.237
Date updated
2025-04-06 07:26:01 UTC+0000
Release date
2025-04-06 07:12:03 UTC+0000
UTC Start
2025-04-06 07:12:03.237
UTC End
2025-04-06 07:15:15.237
MJD Start
60771.30003746
MJD End
60771.30225968223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0041545
Ambient temperature (°C)
13.7
Seeing (arcsec)
0.675
Observation
ID
66036
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
49157
Name
HD_168592
RA
275.574244
DEC
-38.65706
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 20.4170 20.5710 124.1000 124.3000
A0-D0 29.3170 29.4210 40.3000 41.1000
A0-C1 17.5850 17.7630 90.5640 91.1290
B2-D0 33.8690 33.8670 3.4000 4.0000
B2-C1 11.2820 11.2810 3.4060 3.9340
D0-C1 22.5870 22.5860 183.4550 183.9840
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 60771.30003746
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.574244
DEC -38.65706
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 20.417
HIERARCH ESO ISS PBL12 END 20.571
HIERARCH ESO ISS PBLA12 START 124.1
HIERARCH ESO ISS PBLA12 END 124.3
HIERARCH ESO ISS PBL13 START 29.317
HIERARCH ESO ISS PBL13 END 29.421
HIERARCH ESO ISS PBLA13 START 40.3
HIERARCH ESO ISS PBLA13 END 41.1
HIERARCH ESO ISS PBL14 START 17.585
HIERARCH ESO ISS PBL14 END 17.763
HIERARCH ESO ISS PBLA14 START 90.564
HIERARCH ESO ISS PBLA14 END 91.129
HIERARCH ESO ISS PBL23 START 33.869
HIERARCH ESO ISS PBL23 END 33.867
HIERARCH ESO ISS PBLA23 START 3.4
HIERARCH ESO ISS PBLA23 END 4.0
HIERARCH ESO ISS PBL24 START 11.282
HIERARCH ESO ISS PBL24 END 11.281
HIERARCH ESO ISS PBLA24 START 3.406
HIERARCH ESO ISS PBLA24 END 3.934
HIERARCH ESO ISS PBL34 START 22.587
HIERARCH ESO ISS PBL34 END 22.586
HIERARCH ESO ISS PBLA34 START 183.455
HIERARCH ESO ISS PBLA34 END 183.984
HIERARCH ESO ISS AMBI TAU0 START 0.004486
HIERARCH ESO ISS AMBI TAU0 END 0.003823
HIERARCH ESO ISS AMBI TEMP 13.7
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.66