Exposure
ID
GRAVI.2025-05-20T08:37:14.127_1
Header ID
GRAVI.2025-05-20T08:37:14.127
Date updated
2025-05-20 08:51:05 UTC+0000
Release date
2026-05-20 08:51:04 UTC+0000
UTC Start
2025-05-20 08:37:14.127
UTC End
2025-05-20 08:40:26.127
MJD Start
60815.35919128
MJD End
60815.36141350222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0089115
Ambient temperature (°C)
13.62
Seeing (arcsec)
0.56
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 24.9080 24.8840 157.7000 158.3000
A0-D0 28.8070 28.6060 83.4000 83.8000
A0-C1 21.3100 21.2290 132.0200 132.6560
B2-D0 32.5730 32.4920 36.0000 36.3000
B2-C1 10.8510 10.8240 36.0030 36.2430
D0-C1 21.7220 21.6680 216.0650 216.3050
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 60815.35919128
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 24.908
HIERARCH ESO ISS PBL12 END 24.884
HIERARCH ESO ISS PBLA12 START 157.7
HIERARCH ESO ISS PBLA12 END 158.3
HIERARCH ESO ISS PBL13 START 28.807
HIERARCH ESO ISS PBL13 END 28.606
HIERARCH ESO ISS PBLA13 START 83.4
HIERARCH ESO ISS PBLA13 END 83.8
HIERARCH ESO ISS PBL14 START 21.31
HIERARCH ESO ISS PBL14 END 21.229
HIERARCH ESO ISS PBLA14 START 132.02
HIERARCH ESO ISS PBLA14 END 132.656
HIERARCH ESO ISS PBL23 START 32.573
HIERARCH ESO ISS PBL23 END 32.492
HIERARCH ESO ISS PBLA23 START 36.0
HIERARCH ESO ISS PBLA23 END 36.3
HIERARCH ESO ISS PBL24 START 10.851
HIERARCH ESO ISS PBL24 END 10.824
HIERARCH ESO ISS PBLA24 START 36.003
HIERARCH ESO ISS PBLA24 END 36.243
HIERARCH ESO ISS PBL34 START 21.722
HIERARCH ESO ISS PBL34 END 21.668
HIERARCH ESO ISS PBLA34 START 216.065
HIERARCH ESO ISS PBLA34 END 216.305
HIERARCH ESO ISS AMBI TAU0 START 0.009663
HIERARCH ESO ISS AMBI TAU0 END 0.00816
HIERARCH ESO ISS AMBI TEMP 13.62
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.57