Exposure
ID
GRAVI.2025-05-22T05:30:34.438_1
Header ID
GRAVI.2025-05-22T05:30:34.438
Date updated
2025-05-22 05:41:08 UTC+0000
Release date
2025-05-22 05:30:34 UTC+0000
UTC Start
2025-05-22 05:30:34.438
UTC End
2025-05-22 05:33:14.438
MJD Start
60817.22956525
MJD End
60817.23141710186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0095545
Ambient temperature (°C)
14.64
Seeing (arcsec)
0.415
Observation
ID
67518
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
50217
Name
eps_Sgr
RA
276.042726
DEC
-34.38532
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 64.2110 64.4520 257.5000 257.9000
K0-D0 92.8270 93.0420 236.6000 237.1000
K0-J3 53.3750 53.4940 323.0510 323.3000
G2-D0 39.9750 39.9790 201.8000 202.2000
G2-J3 64.3360 64.3590 28.3920 28.8490
D0-J3 104.1480 104.1740 25.8650 26.3130
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 60817.22956525
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME eps Sgr
HIERARCH ESO INS SOBJ NAME eps_Sgr
RA 276.042726
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 64.211
HIERARCH ESO ISS PBL12 END 64.452
HIERARCH ESO ISS PBLA12 START 257.5
HIERARCH ESO ISS PBLA12 END 257.9
HIERARCH ESO ISS PBL13 START 92.827
HIERARCH ESO ISS PBL13 END 93.042
HIERARCH ESO ISS PBLA13 START 236.6
HIERARCH ESO ISS PBLA13 END 237.1
HIERARCH ESO ISS PBL14 START 53.375
HIERARCH ESO ISS PBL14 END 53.494
HIERARCH ESO ISS PBLA14 START 323.051
HIERARCH ESO ISS PBLA14 END 323.3
HIERARCH ESO ISS PBL23 START 39.975
HIERARCH ESO ISS PBL23 END 39.979
HIERARCH ESO ISS PBLA23 START 201.8
HIERARCH ESO ISS PBLA23 END 202.2
HIERARCH ESO ISS PBL24 START 64.336
HIERARCH ESO ISS PBL24 END 64.359
HIERARCH ESO ISS PBLA24 START 28.392
HIERARCH ESO ISS PBLA24 END 28.849
HIERARCH ESO ISS PBL34 START 104.148
HIERARCH ESO ISS PBL34 END 104.174
HIERARCH ESO ISS PBLA34 START 25.865
HIERARCH ESO ISS PBLA34 END 26.313
HIERARCH ESO ISS AMBI TAU0 START 0.009526
HIERARCH ESO ISS AMBI TAU0 END 0.009583
HIERARCH ESO ISS AMBI TEMP 14.64
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.41