Exposure
ID
GRAVI.2025-05-28T06:00:11.390_1
Header ID
GRAVI.2025-05-28T06:00:11.390
Date updated
2025-05-28 06:12:31 UTC+0000
Release date
2025-05-28 06:00:11 UTC+0000
UTC Start
2025-05-28 06:00:11.390
UTC End
2025-05-28 06:02:51.390
MJD Start
60823.25013183
MJD End
60823.251983681854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003856
Ambient temperature (°C)
13.05
Seeing (arcsec)
1.6549999999999998
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 90.1700 90.2530 113.1000 113.3000
A0-J2 127.8160 128.0410 90.0000 90.2000
A0-K0 125.7970 126.0570 68.0070 68.2830
G1-J2 57.1230 57.2300 51.8000 52.1000
G1-K0 89.1050 89.1780 22.2220 22.5650
J2-K0 48.4460 48.4340 346.6640 346.9580
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 60823.25013183
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 90.17
HIERARCH ESO ISS PBL12 END 90.253
HIERARCH ESO ISS PBLA12 START 113.1
HIERARCH ESO ISS PBLA12 END 113.3
HIERARCH ESO ISS PBL13 START 127.816
HIERARCH ESO ISS PBL13 END 128.041
HIERARCH ESO ISS PBLA13 START 90.0
HIERARCH ESO ISS PBLA13 END 90.2
HIERARCH ESO ISS PBL14 START 125.797
HIERARCH ESO ISS PBL14 END 126.057
HIERARCH ESO ISS PBLA14 START 68.007
HIERARCH ESO ISS PBLA14 END 68.283
HIERARCH ESO ISS PBL23 START 57.123
HIERARCH ESO ISS PBL23 END 57.23
HIERARCH ESO ISS PBLA23 START 51.8
HIERARCH ESO ISS PBLA23 END 52.1
HIERARCH ESO ISS PBL24 START 89.105
HIERARCH ESO ISS PBL24 END 89.178
HIERARCH ESO ISS PBLA24 START 22.222
HIERARCH ESO ISS PBLA24 END 22.565
HIERARCH ESO ISS PBL34 START 48.446
HIERARCH ESO ISS PBL34 END 48.434
HIERARCH ESO ISS PBLA34 START 346.664
HIERARCH ESO ISS PBLA34 END 346.958
HIERARCH ESO ISS AMBI TAU0 START 0.003628
HIERARCH ESO ISS AMBI TAU0 END 0.004084
HIERARCH ESO ISS AMBI TEMP 13.05
HIERARCH ESO ISS AMBI FWHM START 1.67
HIERARCH ESO ISS AMBI FWHM END 1.64