Exposure
ID
GRAVI.2025-04-04T05:35:30.359_1
Header ID
GRAVI.2025-04-04T05:35:30.359
Date updated
2025-04-04 05:50:49 UTC+0000
Release date
2026-04-04 05:50:49 UTC+0000
UTC Start
2025-04-04 05:35:30.359
UTC End
2025-04-04 05:38:42.359
MJD Start
60769.23299027
MJD End
60769.235212492225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.008292
Ambient temperature (°C)
14.12
Seeing (arcsec)
0.6799999999999999
Observation
ID
66035
Category
science
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
49156
Name
KW_Sgr
RA
268.000514
DEC
-28.02238
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 18.6260 18.8160 128.4000 128.4000
A0-D0 24.1890 24.3190 25.3000 26.3000
A0-C1 13.1760 13.4370 91.8790 92.2740
B2-D0 33.7170 33.7100 352.7000 353.3000
B2-C1 11.2320 11.2300 352.7020 353.2300
D0-C1 22.4850 22.4800 172.7390 173.2680
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60769.23299027
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V KW Sgr
HIERARCH ESO INS SOBJ NAME KW_Sgr
RA 268.000514
DEC -28.02238
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 18.626
HIERARCH ESO ISS PBL12 END 18.816
HIERARCH ESO ISS PBLA12 START 128.4
HIERARCH ESO ISS PBLA12 END 128.4
HIERARCH ESO ISS PBL13 START 24.189
HIERARCH ESO ISS PBL13 END 24.319
HIERARCH ESO ISS PBLA13 START 25.3
HIERARCH ESO ISS PBLA13 END 26.3
HIERARCH ESO ISS PBL14 START 13.176
HIERARCH ESO ISS PBL14 END 13.437
HIERARCH ESO ISS PBLA14 START 91.879
HIERARCH ESO ISS PBLA14 END 92.274
HIERARCH ESO ISS PBL23 START 33.717
HIERARCH ESO ISS PBL23 END 33.71
HIERARCH ESO ISS PBLA23 START 352.7
HIERARCH ESO ISS PBLA23 END 353.3
HIERARCH ESO ISS PBL24 START 11.232
HIERARCH ESO ISS PBL24 END 11.23
HIERARCH ESO ISS PBLA24 START 352.702
HIERARCH ESO ISS PBLA24 END 353.23
HIERARCH ESO ISS PBL34 START 22.485
HIERARCH ESO ISS PBL34 END 22.48
HIERARCH ESO ISS PBLA34 START 172.739
HIERARCH ESO ISS PBLA34 END 173.268
HIERARCH ESO ISS AMBI TAU0 START 0.008088
HIERARCH ESO ISS AMBI TAU0 END 0.008496
HIERARCH ESO ISS AMBI TEMP 14.12
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.77