Exposure
ID
GRAVI.2025-04-06T08:18:27.406_1
Header ID
GRAVI.2025-04-06T08:18:27.406
Date updated
2025-04-06 08:31:04 UTC+0000
Release date
2025-04-06 08:18:27 UTC+0000
UTC Start
2025-04-06 08:18:27.406
UTC End
2025-04-06 08:21:39.406
MJD Start
60771.34615053
MJD End
60771.348372752225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0048745
Ambient temperature (°C)
13.23
Seeing (arcsec)
0.485
Observation
ID
66036
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
49157
Name
HD_168592
RA
275.574244
DEC
-38.65706
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 22.7780 22.8840 129.8000 130.2000
A0-D0 31.0350 31.1140 53.7000 54.4000
A0-C1 20.3230 20.4450 100.2210 100.7360
B2-D0 33.7830 33.7740 12.9000 13.4000
B2-C1 11.2530 11.2500 12.8280 13.3390
D0-C1 22.5300 22.5240 192.8850 193.3960
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 60771.34615053
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.574244
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 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 22.778
HIERARCH ESO ISS PBL12 END 22.884
HIERARCH ESO ISS PBLA12 START 129.8
HIERARCH ESO ISS PBLA12 END 130.2
HIERARCH ESO ISS PBL13 START 31.035
HIERARCH ESO ISS PBL13 END 31.114
HIERARCH ESO ISS PBLA13 START 53.7
HIERARCH ESO ISS PBLA13 END 54.4
HIERARCH ESO ISS PBL14 START 20.323
HIERARCH ESO ISS PBL14 END 20.445
HIERARCH ESO ISS PBLA14 START 100.221
HIERARCH ESO ISS PBLA14 END 100.736
HIERARCH ESO ISS PBL23 START 33.783
HIERARCH ESO ISS PBL23 END 33.774
HIERARCH ESO ISS PBLA23 START 12.9
HIERARCH ESO ISS PBLA23 END 13.4
HIERARCH ESO ISS PBL24 START 11.253
HIERARCH ESO ISS PBL24 END 11.25
HIERARCH ESO ISS PBLA24 START 12.828
HIERARCH ESO ISS PBLA24 END 13.339
HIERARCH ESO ISS PBL34 START 22.53
HIERARCH ESO ISS PBL34 END 22.524
HIERARCH ESO ISS PBLA34 START 192.885
HIERARCH ESO ISS PBLA34 END 193.396
HIERARCH ESO ISS AMBI TAU0 START 0.004528
HIERARCH ESO ISS AMBI TAU0 END 0.005221
HIERARCH ESO ISS AMBI TEMP 13.23
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.45