Exposure
ID
GRAVI.2025-05-27T05:38:41.955_1
Header ID
GRAVI.2025-05-27T05:38:41.955
Date updated
2025-05-27 05:51:05 UTC+0000
Release date
2025-05-27 05:38:41 UTC+0000
UTC Start
2025-05-27 05:38:41.955
UTC End
2025-05-27 05:41:21.955
MJD Start
60822.23520781
MJD End
60822.23705966186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003808
Ambient temperature (°C)
10.99
Seeing (arcsec)
0.605
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 88.9690 89.1550 111.5000 111.7000
A0-J2 125.0720 125.4650 88.1000 88.3000
A0-K0 122.9040 123.2990 65.5130 65.8200
G1-J2 56.0090 56.1560 48.9000 49.3000
G1-K0 88.4510 88.5290 19.1840 19.5510
J2-K0 48.5470 48.5370 344.2830 344.5520
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 60822.23520781
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 88.969
HIERARCH ESO ISS PBL12 END 89.155
HIERARCH ESO ISS PBLA12 START 111.5
HIERARCH ESO ISS PBLA12 END 111.7
HIERARCH ESO ISS PBL13 START 125.072
HIERARCH ESO ISS PBL13 END 125.465
HIERARCH ESO ISS PBLA13 START 88.1
HIERARCH ESO ISS PBLA13 END 88.3
HIERARCH ESO ISS PBL14 START 122.904
HIERARCH ESO ISS PBL14 END 123.299
HIERARCH ESO ISS PBLA14 START 65.513
HIERARCH ESO ISS PBLA14 END 65.82
HIERARCH ESO ISS PBL23 START 56.009
HIERARCH ESO ISS PBL23 END 56.156
HIERARCH ESO ISS PBLA23 START 48.9
HIERARCH ESO ISS PBLA23 END 49.3
HIERARCH ESO ISS PBL24 START 88.451
HIERARCH ESO ISS PBL24 END 88.529
HIERARCH ESO ISS PBLA24 START 19.184
HIERARCH ESO ISS PBLA24 END 19.551
HIERARCH ESO ISS PBL34 START 48.547
HIERARCH ESO ISS PBL34 END 48.537
HIERARCH ESO ISS PBLA34 START 344.283
HIERARCH ESO ISS PBLA34 END 344.552
HIERARCH ESO ISS AMBI TAU0 START 0.003568
HIERARCH ESO ISS AMBI TAU0 END 0.004048
HIERARCH ESO ISS AMBI TEMP 10.99
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.6