Exposure
ID
GRAVI.2025-06-20T05:10:39.416_1
Header ID
GRAVI.2025-06-20T05:10:39.416
Date updated
2025-06-20 05:25:52 UTC+0000
Release date
2025-06-20 05:10:39 UTC+0000
UTC Start
2025-06-20 05:10:39.416
UTC End
2025-06-20 05:13:51.416
MJD Start
60846.21573398
MJD End
60846.21795620223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0035175
Ambient temperature (°C)
12.82
Seeing (arcsec)
0.955
Observation
ID
68169
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
50674
Name
HD_168592
RA
275.577086
DEC
-38.65706
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 68.3460 68.3470 271.5000 272.1000
K0-D0 95.6880 95.5910 251.5000 252.1000
K0-J3 55.2260 55.2970 332.1600 332.5990
G2-D0 39.1810 39.1220 214.9000 215.4000
G2-J3 63.4390 63.3370 42.1000 42.5780
D0-J3 102.4290 102.2670 39.3520 39.8210
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 60846.21573398
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.577086
DEC -38.65706
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 68.346
HIERARCH ESO ISS PBL12 END 68.347
HIERARCH ESO ISS PBLA12 START 271.5
HIERARCH ESO ISS PBLA12 END 272.1
HIERARCH ESO ISS PBL13 START 95.688
HIERARCH ESO ISS PBL13 END 95.591
HIERARCH ESO ISS PBLA13 START 251.5
HIERARCH ESO ISS PBLA13 END 252.1
HIERARCH ESO ISS PBL14 START 55.226
HIERARCH ESO ISS PBL14 END 55.297
HIERARCH ESO ISS PBLA14 START 332.16
HIERARCH ESO ISS PBLA14 END 332.599
HIERARCH ESO ISS PBL23 START 39.181
HIERARCH ESO ISS PBL23 END 39.122
HIERARCH ESO ISS PBLA23 START 214.9
HIERARCH ESO ISS PBLA23 END 215.4
HIERARCH ESO ISS PBL24 START 63.439
HIERARCH ESO ISS PBL24 END 63.337
HIERARCH ESO ISS PBLA24 START 42.1
HIERARCH ESO ISS PBLA24 END 42.578
HIERARCH ESO ISS PBL34 START 102.429
HIERARCH ESO ISS PBL34 END 102.267
HIERARCH ESO ISS PBLA34 START 39.352
HIERARCH ESO ISS PBLA34 END 39.821
HIERARCH ESO ISS AMBI TAU0 START 0.003409
HIERARCH ESO ISS AMBI TAU0 END 0.003626
HIERARCH ESO ISS AMBI TEMP 12.82
HIERARCH ESO ISS AMBI FWHM START 0.95
HIERARCH ESO ISS AMBI FWHM END 0.96