Exposure
ID
GRAVI.2025-05-23T07:15:01.520_1
Header ID
GRAVI.2025-05-23T07:15:01.520
Date updated
2025-05-23 07:31:05 UTC+0000
Release date
2026-05-23 07:31:05 UTC+0000
UTC Start
2025-05-23 07:15:01.520
UTC End
2025-05-23 07:18:13.520
MJD Start
60818.30210093
MJD End
60818.304323152224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0040490000000000005
Ambient temperature (°C)
13.79
Seeing (arcsec)
0.47
Observation
ID
67545
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
50235
Name
BD-154915
RA
274.607228
DEC
-15.30366
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 68.1240 68.0300 272.8000 273.0000
K0-D0 95.9590 95.9200 252.5000 252.7000
K0-J3 55.6600 55.5920 334.4330 334.8320
G2-D0 39.8240 39.8560 216.1000 216.4000
G2-J3 64.3470 64.3920 43.1710 43.4640
D0-J3 103.9830 104.0610 40.4650 40.7640
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 60818.30210093
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME BD-15 4915
HIERARCH ESO INS SOBJ NAME BD-154915
RA 274.607228
DEC -15.30366
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 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 68.124
HIERARCH ESO ISS PBL12 END 68.03
HIERARCH ESO ISS PBLA12 START 272.8
HIERARCH ESO ISS PBLA12 END 273.0
HIERARCH ESO ISS PBL13 START 95.959
HIERARCH ESO ISS PBL13 END 95.92
HIERARCH ESO ISS PBLA13 START 252.5
HIERARCH ESO ISS PBLA13 END 252.7
HIERARCH ESO ISS PBL14 START 55.66
HIERARCH ESO ISS PBL14 END 55.592
HIERARCH ESO ISS PBLA14 START 334.433
HIERARCH ESO ISS PBLA14 END 334.832
HIERARCH ESO ISS PBL23 START 39.824
HIERARCH ESO ISS PBL23 END 39.856
HIERARCH ESO ISS PBLA23 START 216.1
HIERARCH ESO ISS PBLA23 END 216.4
HIERARCH ESO ISS PBL24 START 64.347
HIERARCH ESO ISS PBL24 END 64.392
HIERARCH ESO ISS PBLA24 START 43.171
HIERARCH ESO ISS PBLA24 END 43.464
HIERARCH ESO ISS PBL34 START 103.983
HIERARCH ESO ISS PBL34 END 104.061
HIERARCH ESO ISS PBLA34 START 40.465
HIERARCH ESO ISS PBLA34 END 40.764
HIERARCH ESO ISS AMBI TAU0 START 0.004053
HIERARCH ESO ISS AMBI TAU0 END 0.004045
HIERARCH ESO ISS AMBI TEMP 13.79
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.47