Exposure
ID
GRAVI.2025-09-02T00:46:01.406_1
Header ID
GRAVI.2025-09-02T00:46:01.406
Date updated
2025-09-02 00:56:11 UTC+0000
Release date
2025-09-02 00:46:01 UTC+0000
UTC Start
2025-09-02 00:46:01.406
UTC End
2025-09-02 00:48:41.406
MJD Start
60920.03196072
MJD End
60920.033812571855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0033740000000000003
Ambient temperature (°C)
10.6
Seeing (arcsec)
0.505
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 89.2600 89.0930 118.5000 118.8000
A0-J2 128.1180 127.9010 95.1000 95.3000
A0-K0 127.5760 127.4470 73.3930 73.5990
G1-J2 58.1950 58.1720 57.6000 57.8000
G1-K0 90.3570 90.3840 28.9940 29.2480
J2-K0 48.1750 48.1660 353.6170 353.9390
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 60920.03196072
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 89.26
HIERARCH ESO ISS PBL12 END 89.093
HIERARCH ESO ISS PBLA12 START 118.5
HIERARCH ESO ISS PBLA12 END 118.8
HIERARCH ESO ISS PBL13 START 128.118
HIERARCH ESO ISS PBL13 END 127.901
HIERARCH ESO ISS PBLA13 START 95.1
HIERARCH ESO ISS PBLA13 END 95.3
HIERARCH ESO ISS PBL14 START 127.576
HIERARCH ESO ISS PBL14 END 127.447
HIERARCH ESO ISS PBLA14 START 73.393
HIERARCH ESO ISS PBLA14 END 73.599
HIERARCH ESO ISS PBL23 START 58.195
HIERARCH ESO ISS PBL23 END 58.172
HIERARCH ESO ISS PBLA23 START 57.6
HIERARCH ESO ISS PBLA23 END 57.8
HIERARCH ESO ISS PBL24 START 90.357
HIERARCH ESO ISS PBL24 END 90.384
HIERARCH ESO ISS PBLA24 START 28.994
HIERARCH ESO ISS PBLA24 END 29.248
HIERARCH ESO ISS PBL34 START 48.175
HIERARCH ESO ISS PBL34 END 48.166
HIERARCH ESO ISS PBLA34 START 353.617
HIERARCH ESO ISS PBLA34 END 353.939
HIERARCH ESO ISS AMBI TAU0 START 0.003354
HIERARCH ESO ISS AMBI TAU0 END 0.003394
HIERARCH ESO ISS AMBI TEMP 10.6
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.51