Exposure
ID
GRAVI.2025-06-21T04:36:46.277_1
Header ID
GRAVI.2025-06-21T04:36:46.277
Date updated
2025-06-21 04:50:43 UTC+0000
Release date
2025-06-21 04:36:46 UTC+0000
UTC Start
2025-06-21 04:36:46.277
UTC End
2025-06-21 04:39:58.277
MJD Start
60847.19220228
MJD End
60847.194424502224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.004298
Ambient temperature (°C)
11.17
Seeing (arcsec)
0.63
Observation
ID
68169
Category
calibrator
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
50674
Name
HD_168592
RA
275.577086
DEC
-38.65706
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 67.9330 68.0220 266.8000 267.4000
K0-D0 95.9620 95.9760 246.9000 247.4000
K0-J3 54.5380 54.6350 328.7340 329.1420
G2-D0 39.5660 39.5270 211.1000 211.6000
G2-J3 64.0720 64.0110 38.0810 38.5890
D0-J3 103.4540 103.3540 35.4050 35.9040
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60847.19220228
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.577086
DEC -38.65706
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 67.933
HIERARCH ESO ISS PBL12 END 68.022
HIERARCH ESO ISS PBLA12 START 266.8
HIERARCH ESO ISS PBLA12 END 267.4
HIERARCH ESO ISS PBL13 START 95.962
HIERARCH ESO ISS PBL13 END 95.976
HIERARCH ESO ISS PBLA13 START 246.9
HIERARCH ESO ISS PBLA13 END 247.4
HIERARCH ESO ISS PBL14 START 54.538
HIERARCH ESO ISS PBL14 END 54.635
HIERARCH ESO ISS PBLA14 START 328.734
HIERARCH ESO ISS PBLA14 END 329.142
HIERARCH ESO ISS PBL23 START 39.566
HIERARCH ESO ISS PBL23 END 39.527
HIERARCH ESO ISS PBLA23 START 211.1
HIERARCH ESO ISS PBLA23 END 211.6
HIERARCH ESO ISS PBL24 START 64.072
HIERARCH ESO ISS PBL24 END 64.011
HIERARCH ESO ISS PBLA24 START 38.081
HIERARCH ESO ISS PBLA24 END 38.589
HIERARCH ESO ISS PBL34 START 103.454
HIERARCH ESO ISS PBL34 END 103.354
HIERARCH ESO ISS PBLA34 START 35.405
HIERARCH ESO ISS PBLA34 END 35.904
HIERARCH ESO ISS AMBI TAU0 START 0.003805
HIERARCH ESO ISS AMBI TAU0 END 0.004791
HIERARCH ESO ISS AMBI TEMP 11.17
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.66