Exposure
ID
GRAVI.2025-06-17T07:05:25.810_1
Header ID
GRAVI.2025-06-17T07:05:25.810
Date updated
2025-06-17 07:15:56 UTC+0000
Release date
2025-06-17 07:05:25 UTC+0000
UTC Start
2025-06-17 07:05:25.810
UTC End
2025-06-17 07:08:05.810
MJD Start
60843.29543761
MJD End
60843.29728946186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002143
Ambient temperature (°C)
7.11
Seeing (arcsec)
0.95
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 88.1230 87.9540 131.0000 131.5000
A0-J2 121.4410 120.9870 107.9000 108.3000
A0-K0 117.3530 116.8040 84.6620 85.0550
G1-J2 53.2500 53.0150 67.2000 67.6000
G1-K0 85.2160 85.0230 36.2210 36.4620
J2-K0 48.1630 48.1610 1.4880 1.8190
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 60843.29543761
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 88.123
HIERARCH ESO ISS PBL12 END 87.954
HIERARCH ESO ISS PBLA12 START 131.0
HIERARCH ESO ISS PBLA12 END 131.5
HIERARCH ESO ISS PBL13 START 121.441
HIERARCH ESO ISS PBL13 END 120.987
HIERARCH ESO ISS PBLA13 START 107.9
HIERARCH ESO ISS PBLA13 END 108.3
HIERARCH ESO ISS PBL14 START 117.353
HIERARCH ESO ISS PBL14 END 116.804
HIERARCH ESO ISS PBLA14 START 84.662
HIERARCH ESO ISS PBLA14 END 85.055
HIERARCH ESO ISS PBL23 START 53.25
HIERARCH ESO ISS PBL23 END 53.015
HIERARCH ESO ISS PBLA23 START 67.2
HIERARCH ESO ISS PBLA23 END 67.6
HIERARCH ESO ISS PBL24 START 85.216
HIERARCH ESO ISS PBL24 END 85.023
HIERARCH ESO ISS PBLA24 START 36.221
HIERARCH ESO ISS PBLA24 END 36.462
HIERARCH ESO ISS PBL34 START 48.163
HIERARCH ESO ISS PBL34 END 48.161
HIERARCH ESO ISS PBLA34 START 1.488
HIERARCH ESO ISS PBLA34 END 1.819
HIERARCH ESO ISS AMBI TAU0 START 0.002143
HIERARCH ESO ISS AMBI TAU0 END 0.002143
HIERARCH ESO ISS AMBI TEMP 7.11
HIERARCH ESO ISS AMBI FWHM START 1.06
HIERARCH ESO ISS AMBI FWHM END 0.84