Exposure
ID
GRAVI.2025-08-03T04:40:23.686_1
Header ID
GRAVI.2025-08-03T04:40:23.686
Date updated
2025-08-03 04:50:48 UTC+0000
Release date
2025-08-03 04:40:23 UTC+0000
UTC Start
2025-08-03 04:40:23.686
UTC End
2025-08-03 04:43:03.686
MJD Start
60890.19471859
MJD End
60890.196570441854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0034275
Ambient temperature (°C)
10.78
Seeing (arcsec)
0.445
Observation
ID
67033
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
49841
Name
HD_168000
RA
274.598179
DEC
-17.53439
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 76.6180 76.1920 133.8000 134.4000
A0-J2 106.0030 105.1270 106.1000 106.5000
A0-K0 108.9240 108.1060 80.2490 80.3960
G1-J2 52.2270 51.9430 63.1000 63.1000
G1-K0 88.4640 88.3250 36.0640 36.1620
J2-K0 48.1810 48.1900 6.5640 6.8830
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 60890.19471859
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168000
HIERARCH ESO INS SOBJ NAME HD_168000
RA 274.598179
DEC -17.53439
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 76.618
HIERARCH ESO ISS PBL12 END 76.192
HIERARCH ESO ISS PBLA12 START 133.8
HIERARCH ESO ISS PBLA12 END 134.4
HIERARCH ESO ISS PBL13 START 106.003
HIERARCH ESO ISS PBL13 END 105.127
HIERARCH ESO ISS PBLA13 START 106.1
HIERARCH ESO ISS PBLA13 END 106.5
HIERARCH ESO ISS PBL14 START 108.924
HIERARCH ESO ISS PBL14 END 108.106
HIERARCH ESO ISS PBLA14 START 80.249
HIERARCH ESO ISS PBLA14 END 80.396
HIERARCH ESO ISS PBL23 START 52.227
HIERARCH ESO ISS PBL23 END 51.943
HIERARCH ESO ISS PBLA23 START 63.1
HIERARCH ESO ISS PBLA23 END 63.1
HIERARCH ESO ISS PBL24 START 88.464
HIERARCH ESO ISS PBL24 END 88.325
HIERARCH ESO ISS PBLA24 START 36.064
HIERARCH ESO ISS PBLA24 END 36.162
HIERARCH ESO ISS PBL34 START 48.181
HIERARCH ESO ISS PBL34 END 48.19
HIERARCH ESO ISS PBLA34 START 6.564
HIERARCH ESO ISS PBLA34 END 6.883
HIERARCH ESO ISS AMBI TAU0 START 0.00351
HIERARCH ESO ISS AMBI TAU0 END 0.003345
HIERARCH ESO ISS AMBI TEMP 10.78
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.45