Exposure
ID
GRAVI.2025-04-04T05:51:54.402_1
Header ID
GRAVI.2025-04-04T05:51:54.402
Date updated
2025-04-04 06:05:37 UTC+0000
Release date
2026-04-04 06:05:37 UTC+0000
UTC Start
2025-04-04 05:51:54.402
UTC End
2025-04-04 05:55:06.402
MJD Start
60769.24437965
MJD End
60769.246601872226
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.008775999999999999
Ambient temperature (°C)
13.82
Seeing (arcsec)
0.53
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 19.4510 19.6300 128.4000 128.4000
A0-D0 24.7920 24.9370 29.9000 30.9000
A0-C1 14.3090 14.5560 93.5820 93.9510
B2-D0 33.6900 33.6850 355.1000 355.6000
B2-C1 11.2230 11.2220 355.0490 355.5800
D0-C1 22.4670 22.4640 175.0890 175.6210
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 60769.24437965
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 19.451
HIERARCH ESO ISS PBL12 END 19.63
HIERARCH ESO ISS PBLA12 START 128.4
HIERARCH ESO ISS PBLA12 END 128.4
HIERARCH ESO ISS PBL13 START 24.792
HIERARCH ESO ISS PBL13 END 24.937
HIERARCH ESO ISS PBLA13 START 29.9
HIERARCH ESO ISS PBLA13 END 30.9
HIERARCH ESO ISS PBL14 START 14.309
HIERARCH ESO ISS PBL14 END 14.556
HIERARCH ESO ISS PBLA14 START 93.582
HIERARCH ESO ISS PBLA14 END 93.951
HIERARCH ESO ISS PBL23 START 33.69
HIERARCH ESO ISS PBL23 END 33.685
HIERARCH ESO ISS PBLA23 START 355.1
HIERARCH ESO ISS PBLA23 END 355.6
HIERARCH ESO ISS PBL24 START 11.223
HIERARCH ESO ISS PBL24 END 11.222
HIERARCH ESO ISS PBLA24 START 355.049
HIERARCH ESO ISS PBLA24 END 355.58
HIERARCH ESO ISS PBL34 START 22.467
HIERARCH ESO ISS PBL34 END 22.464
HIERARCH ESO ISS PBLA34 START 175.089
HIERARCH ESO ISS PBLA34 END 175.621
HIERARCH ESO ISS AMBI TAU0 START 0.009822
HIERARCH ESO ISS AMBI TAU0 END 0.00773
HIERARCH ESO ISS AMBI TEMP 13.82
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.58