Exposure
ID
GRAVI.2025-05-28T06:44:56.503_1
Header ID
GRAVI.2025-05-28T06:44:56.503
Date updated
2025-05-28 08:13:15 UTC+0000
Release date
2025-05-28 06:44:56 UTC+0000
UTC Start
2025-05-28 06:44:56.503
UTC End
2025-05-28 06:47:36.503
MJD Start
60823.28120953
MJD End
60823.28306138186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0043025
Ambient temperature (°C)
12.8
Seeing (arcsec)
1.2
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 90.1950 90.1070 116.5000 116.7000
A0-J2 129.1410 129.0710 93.4000 93.6000
A0-K0 127.9750 127.9810 71.7560 71.9930
G1-J2 58.1720 58.1950 55.9000 56.2000
G1-K0 90.0590 90.1070 26.9450 27.2400
J2-K0 48.2550 48.2440 351.2090 351.5350
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 60823.28120953
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 90.195
HIERARCH ESO ISS PBL12 END 90.107
HIERARCH ESO ISS PBLA12 START 116.5
HIERARCH ESO ISS PBLA12 END 116.7
HIERARCH ESO ISS PBL13 START 129.141
HIERARCH ESO ISS PBL13 END 129.071
HIERARCH ESO ISS PBLA13 START 93.4
HIERARCH ESO ISS PBLA13 END 93.6
HIERARCH ESO ISS PBL14 START 127.975
HIERARCH ESO ISS PBL14 END 127.981
HIERARCH ESO ISS PBLA14 START 71.756
HIERARCH ESO ISS PBLA14 END 71.993
HIERARCH ESO ISS PBL23 START 58.172
HIERARCH ESO ISS PBL23 END 58.195
HIERARCH ESO ISS PBLA23 START 55.9
HIERARCH ESO ISS PBLA23 END 56.2
HIERARCH ESO ISS PBL24 START 90.059
HIERARCH ESO ISS PBL24 END 90.107
HIERARCH ESO ISS PBLA24 START 26.945
HIERARCH ESO ISS PBLA24 END 27.24
HIERARCH ESO ISS PBL34 START 48.255
HIERARCH ESO ISS PBL34 END 48.244
HIERARCH ESO ISS PBLA34 START 351.209
HIERARCH ESO ISS PBLA34 END 351.535
HIERARCH ESO ISS AMBI TAU0 START 0.004164
HIERARCH ESO ISS AMBI TAU0 END 0.004441
HIERARCH ESO ISS AMBI TEMP 12.8
HIERARCH ESO ISS AMBI FWHM START 1.25
HIERARCH ESO ISS AMBI FWHM END 1.15