Exposure
ID
GRAVI.2025-06-17T07:15:34.835_1
Header ID
GRAVI.2025-06-17T07:15:34.835
Date updated
2025-06-17 07:30:57 UTC+0000
Release date
2025-06-17 07:15:34 UTC+0000
UTC Start
2025-06-17 07:15:34.835
UTC End
2025-06-17 07:18:14.835
MJD Start
60843.30248652
MJD End
60843.304338371854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002513
Ambient temperature (°C)
6.96
Seeing (arcsec)
0.965
Observation
ID
68145
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
50653
Name
eps_Sgr
RA
276.040029
DEC
-34.38532
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 87.5260 87.3440 132.8000 133.3000
A0-J2 119.8310 119.3400 109.5000 110.1000
A0-K0 115.4060 114.8120 86.0230 86.4210
G1-J2 52.4180 52.1650 68.3000 68.6000
G1-K0 84.5300 84.3200 37.0370 37.2670
J2-K0 48.1540 48.1500 2.6260 2.9560
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 60843.30248652
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME eps Sgr
HIERARCH ESO INS SOBJ NAME eps_Sgr
RA 276.040029
DEC -34.38532
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 87.526
HIERARCH ESO ISS PBL12 END 87.344
HIERARCH ESO ISS PBLA12 START 132.8
HIERARCH ESO ISS PBLA12 END 133.3
HIERARCH ESO ISS PBL13 START 119.831
HIERARCH ESO ISS PBL13 END 119.34
HIERARCH ESO ISS PBLA13 START 109.5
HIERARCH ESO ISS PBLA13 END 110.1
HIERARCH ESO ISS PBL14 START 115.406
HIERARCH ESO ISS PBL14 END 114.812
HIERARCH ESO ISS PBLA14 START 86.023
HIERARCH ESO ISS PBLA14 END 86.421
HIERARCH ESO ISS PBL23 START 52.418
HIERARCH ESO ISS PBL23 END 52.165
HIERARCH ESO ISS PBLA23 START 68.3
HIERARCH ESO ISS PBLA23 END 68.6
HIERARCH ESO ISS PBL24 START 84.53
HIERARCH ESO ISS PBL24 END 84.32
HIERARCH ESO ISS PBLA24 START 37.037
HIERARCH ESO ISS PBLA24 END 37.267
HIERARCH ESO ISS PBL34 START 48.154
HIERARCH ESO ISS PBL34 END 48.15
HIERARCH ESO ISS PBLA34 START 2.626
HIERARCH ESO ISS PBLA34 END 2.956
HIERARCH ESO ISS AMBI TAU0 START 0.00251
HIERARCH ESO ISS AMBI TAU0 END 0.002516
HIERARCH ESO ISS AMBI TEMP 6.96
HIERARCH ESO ISS AMBI FWHM START 0.99
HIERARCH ESO ISS AMBI FWHM END 0.94