Exposure
ID
GRAVI.2025-05-22T05:33:52.446_1
Header ID
GRAVI.2025-05-22T05:33:52.446
Date updated
2025-05-22 05:45:53 UTC+0000
Release date
2025-05-22 05:33:52 UTC+0000
UTC Start
2025-05-22 05:33:52.446
UTC End
2025-05-22 05:36:32.446
MJD Start
60817.23185701
MJD End
60817.23370886186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0092895
Ambient temperature (°C)
14.61
Seeing (arcsec)
0.43999999999999995
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 64.4770 64.7120 258.0000 258.4000
K0-D0 93.0640 93.2720 237.2000 237.7000
K0-J3 53.5060 53.6220 323.3240 323.5760
G2-D0 39.9790 39.9820 202.3000 202.7000
G2-J3 64.3620 64.3840 28.8960 29.3500
D0-J3 104.1760 104.2000 26.3580 26.8040
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 60817.23185701
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 64.477
HIERARCH ESO ISS PBL12 END 64.712
HIERARCH ESO ISS PBLA12 START 258.0
HIERARCH ESO ISS PBLA12 END 258.4
HIERARCH ESO ISS PBL13 START 93.064
HIERARCH ESO ISS PBL13 END 93.272
HIERARCH ESO ISS PBLA13 START 237.2
HIERARCH ESO ISS PBLA13 END 237.7
HIERARCH ESO ISS PBL14 START 53.506
HIERARCH ESO ISS PBL14 END 53.622
HIERARCH ESO ISS PBLA14 START 323.324
HIERARCH ESO ISS PBLA14 END 323.576
HIERARCH ESO ISS PBL23 START 39.979
HIERARCH ESO ISS PBL23 END 39.982
HIERARCH ESO ISS PBLA23 START 202.3
HIERARCH ESO ISS PBLA23 END 202.7
HIERARCH ESO ISS PBL24 START 64.362
HIERARCH ESO ISS PBL24 END 64.384
HIERARCH ESO ISS PBLA24 START 28.896
HIERARCH ESO ISS PBLA24 END 29.35
HIERARCH ESO ISS PBL34 START 104.176
HIERARCH ESO ISS PBL34 END 104.2
HIERARCH ESO ISS PBLA34 START 26.358
HIERARCH ESO ISS PBLA34 END 26.804
HIERARCH ESO ISS AMBI TAU0 START 0.009583
HIERARCH ESO ISS AMBI TAU0 END 0.008996
HIERARCH ESO ISS AMBI TEMP 14.61
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.47