Exposure
ID
GRAVI.2025-08-28T01:48:03.323_1
Header ID
GRAVI.2025-08-28T01:48:03.323
Date updated
2025-08-28 02:00:55 UTC+0000
Release date
2025-08-28 01:48:03 UTC+0000
UTC Start
2025-08-28 01:48:03.323
UTC End
2025-08-28 01:50:43.323
MJD Start
60915.07503846
MJD End
60915.07689031186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002355
Ambient temperature (°C)
12.52
Seeing (arcsec)
1.35
Observation
ID
70097
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
52010
Name
HD_168000
RA
274.599344
DEC
-17.53439
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 47.3180 47.2690 159.6000 160.0000
A0-J2 123.1970 122.7100 98.6000 98.8000
A0-J6 169.5750 169.5300 32.2840 32.4840
B5-J2 108.5070 108.1660 76.2000 76.3000
B5-J6 201.8240 201.8450 21.5430 21.7820
J2-J6 164.7500 164.6740 349.0660 349.4290
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 60915.07503846
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168000
HIERARCH ESO INS SOBJ NAME HD_168000
RA 274.599344
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 47.318
HIERARCH ESO ISS PBL12 END 47.269
HIERARCH ESO ISS PBLA12 START 159.6
HIERARCH ESO ISS PBLA12 END 160.0
HIERARCH ESO ISS PBL13 START 123.197
HIERARCH ESO ISS PBL13 END 122.71
HIERARCH ESO ISS PBLA13 START 98.6
HIERARCH ESO ISS PBLA13 END 98.8
HIERARCH ESO ISS PBL14 START 169.575
HIERARCH ESO ISS PBL14 END 169.53
HIERARCH ESO ISS PBLA14 START 32.284
HIERARCH ESO ISS PBLA14 END 32.484
HIERARCH ESO ISS PBL23 START 108.507
HIERARCH ESO ISS PBL23 END 108.166
HIERARCH ESO ISS PBLA23 START 76.2
HIERARCH ESO ISS PBLA23 END 76.3
HIERARCH ESO ISS PBL24 START 201.824
HIERARCH ESO ISS PBL24 END 201.845
HIERARCH ESO ISS PBLA24 START 21.543
HIERARCH ESO ISS PBLA24 END 21.782
HIERARCH ESO ISS PBL34 START 164.75
HIERARCH ESO ISS PBL34 END 164.674
HIERARCH ESO ISS PBLA34 START 349.066
HIERARCH ESO ISS PBLA34 END 349.429
HIERARCH ESO ISS AMBI TAU0 START 0.002355
HIERARCH ESO ISS AMBI TAU0 END 0.002355
HIERARCH ESO ISS AMBI TEMP 12.52
HIERARCH ESO ISS AMBI FWHM START 1.35
HIERARCH ESO ISS AMBI FWHM END 1.35