Exposure
ID
GRAVI.2025-04-04T05:43:42.381_1
Header ID
GRAVI.2025-04-04T05:43:42.381
Date updated
2025-04-04 05:55:33 UTC+0000
Release date
2026-04-04 05:55:33 UTC+0000
UTC Start
2025-04-04 05:43:42.381
UTC End
2025-04-04 05:46:54.381
MJD Start
60769.23868496
MJD End
60769.240907182226
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0085995
Ambient temperature (°C)
14.11
Seeing (arcsec)
0.645
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 19.0430 19.2280 128.4000 128.4000
A0-D0 24.4810 24.6180 27.6000 28.6000
A0-C1 13.7480 14.0020 92.7430 93.1220
B2-D0 33.7020 33.6970 353.9000 354.4000
B2-C1 11.2270 11.2250 353.8700 354.3980
D0-C1 22.4750 22.4710 173.9080 174.4370
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 60769.23868496
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 19.043
HIERARCH ESO ISS PBL12 END 19.228
HIERARCH ESO ISS PBLA12 START 128.4
HIERARCH ESO ISS PBLA12 END 128.4
HIERARCH ESO ISS PBL13 START 24.481
HIERARCH ESO ISS PBL13 END 24.618
HIERARCH ESO ISS PBLA13 START 27.6
HIERARCH ESO ISS PBLA13 END 28.6
HIERARCH ESO ISS PBL14 START 13.748
HIERARCH ESO ISS PBL14 END 14.002
HIERARCH ESO ISS PBLA14 START 92.743
HIERARCH ESO ISS PBLA14 END 93.122
HIERARCH ESO ISS PBL23 START 33.702
HIERARCH ESO ISS PBL23 END 33.697
HIERARCH ESO ISS PBLA23 START 353.9
HIERARCH ESO ISS PBLA23 END 354.4
HIERARCH ESO ISS PBL24 START 11.227
HIERARCH ESO ISS PBL24 END 11.225
HIERARCH ESO ISS PBLA24 START 353.87
HIERARCH ESO ISS PBLA24 END 354.398
HIERARCH ESO ISS PBL34 START 22.475
HIERARCH ESO ISS PBL34 END 22.471
HIERARCH ESO ISS PBLA34 START 173.908
HIERARCH ESO ISS PBLA34 END 174.437
HIERARCH ESO ISS AMBI TAU0 START 0.008685
HIERARCH ESO ISS AMBI TAU0 END 0.008514
HIERARCH ESO ISS AMBI TEMP 14.11
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.63