Exposure
ID
GRAVI.2025-05-20T04:07:50.108_1
Header ID
GRAVI.2025-05-20T04:07:50.108
Date updated
2025-05-20 04:21:01 UTC+0000
Release date
2025-05-20 04:07:50 UTC+0000
UTC Start
2025-05-20 04:07:50.108
UTC End
2025-05-20 04:11:02.108
MJD Start
60815.17210773
MJD End
60815.17432995223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.007211
Ambient temperature (°C)
13.73
Seeing (arcsec)
0.69
Observation
ID
67463
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
50184
Name
HD_168592
RA
275.574242
DEC
-38.65706
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 19.9290 20.0930 123.2000 123.5000
A0-D0 28.9990 29.1040 37.7000 38.6000
A0-C1 17.0270 17.2140 88.7930 89.3820
B2-D0 33.8720 33.8710 1.8000 2.3000
B2-C1 11.2830 11.2830 1.7810 2.3160
D0-C1 22.5900 22.5890 181.8290 182.3650
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 60815.17210773
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.574242
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 A0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 19.929
HIERARCH ESO ISS PBL12 END 20.093
HIERARCH ESO ISS PBLA12 START 123.2
HIERARCH ESO ISS PBLA12 END 123.5
HIERARCH ESO ISS PBL13 START 28.999
HIERARCH ESO ISS PBL13 END 29.104
HIERARCH ESO ISS PBLA13 START 37.7
HIERARCH ESO ISS PBLA13 END 38.6
HIERARCH ESO ISS PBL14 START 17.027
HIERARCH ESO ISS PBL14 END 17.214
HIERARCH ESO ISS PBLA14 START 88.793
HIERARCH ESO ISS PBLA14 END 89.382
HIERARCH ESO ISS PBL23 START 33.872
HIERARCH ESO ISS PBL23 END 33.871
HIERARCH ESO ISS PBLA23 START 1.8
HIERARCH ESO ISS PBLA23 END 2.3
HIERARCH ESO ISS PBL24 START 11.283
HIERARCH ESO ISS PBL24 END 11.283
HIERARCH ESO ISS PBLA24 START 1.781
HIERARCH ESO ISS PBLA24 END 2.316
HIERARCH ESO ISS PBL34 START 22.59
HIERARCH ESO ISS PBL34 END 22.589
HIERARCH ESO ISS PBLA34 START 181.829
HIERARCH ESO ISS PBLA34 END 182.365
HIERARCH ESO ISS AMBI TAU0 START 0.008943
HIERARCH ESO ISS AMBI TAU0 END 0.005479
HIERARCH ESO ISS AMBI TEMP 13.73
HIERARCH ESO ISS AMBI FWHM START 0.67
HIERARCH ESO ISS AMBI FWHM END 0.71