Exposure
ID
GRAVI.2025-05-22T05:40:37.463_1
Header ID
GRAVI.2025-05-22T05:40:37.463
Date updated
2025-05-22 05:51:02 UTC+0000
Release date
2025-05-22 05:40:37 UTC+0000
UTC Start
2025-05-22 05:40:37.463
UTC End
2025-05-22 05:43:17.463
MJD Start
60817.23654471
MJD End
60817.23839656186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0090585
Ambient temperature (°C)
14.62
Seeing (arcsec)
0.455
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 65.0010 65.2190 259.0000 259.5000
K0-D0 93.5280 93.7210 238.3000 238.8000
K0-J3 53.7660 53.8750 323.9050 324.1640
G2-D0 39.9850 39.9870 203.2000 203.7000
G2-J3 64.4090 64.4270 29.9280 30.3750
D0-J3 104.2270 104.2450 27.3700 27.8100
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 60817.23654471
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 65.001
HIERARCH ESO ISS PBL12 END 65.219
HIERARCH ESO ISS PBLA12 START 259.0
HIERARCH ESO ISS PBLA12 END 259.5
HIERARCH ESO ISS PBL13 START 93.528
HIERARCH ESO ISS PBL13 END 93.721
HIERARCH ESO ISS PBLA13 START 238.3
HIERARCH ESO ISS PBLA13 END 238.8
HIERARCH ESO ISS PBL14 START 53.766
HIERARCH ESO ISS PBL14 END 53.875
HIERARCH ESO ISS PBLA14 START 323.905
HIERARCH ESO ISS PBLA14 END 324.164
HIERARCH ESO ISS PBL23 START 39.985
HIERARCH ESO ISS PBL23 END 39.987
HIERARCH ESO ISS PBLA23 START 203.2
HIERARCH ESO ISS PBLA23 END 203.7
HIERARCH ESO ISS PBL24 START 64.409
HIERARCH ESO ISS PBL24 END 64.427
HIERARCH ESO ISS PBLA24 START 29.928
HIERARCH ESO ISS PBLA24 END 30.375
HIERARCH ESO ISS PBL34 START 104.227
HIERARCH ESO ISS PBL34 END 104.245
HIERARCH ESO ISS PBLA34 START 27.37
HIERARCH ESO ISS PBLA34 END 27.81
HIERARCH ESO ISS AMBI TAU0 START 0.009499
HIERARCH ESO ISS AMBI TAU0 END 0.008618
HIERARCH ESO ISS AMBI TEMP 14.62
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.45