Exposure
ID
GRAVI.2025-08-02T04:31:54.136_1
Header ID
GRAVI.2025-08-02T04:31:54.136
Date updated
2025-08-02 04:45:55 UTC+0000
Release date
2025-08-02 04:31:54 UTC+0000
UTC Start
2025-08-02 04:31:54.136
UTC End
2025-08-02 04:34:34.136
MJD Start
60889.18882102
MJD End
60889.19067287185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002535
Ambient temperature (°C)
10.41
Seeing (arcsec)
1.385
Observation
ID
68989
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
51321
Name
HD_157097
RA
260.725474
DEC
-37.22101
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 83.5720 83.3890 149.1000 149.8000
A0-J2 106.2380 105.6260 126.5000 127.2000
A0-K0 96.1220 95.2580 100.0150 100.5590
G1-J2 43.3820 42.9860 78.7000 79.0000
G1-K0 75.5800 75.2250 43.2740 43.4380
J2-K0 47.4110 47.3880 11.2790 11.5940
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 60889.18882102
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 157097
HIERARCH ESO INS SOBJ NAME HD_157097
RA 260.725474
DEC -37.22101
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 83.572
HIERARCH ESO ISS PBL12 END 83.389
HIERARCH ESO ISS PBLA12 START 149.1
HIERARCH ESO ISS PBLA12 END 149.8
HIERARCH ESO ISS PBL13 START 106.238
HIERARCH ESO ISS PBL13 END 105.626
HIERARCH ESO ISS PBLA13 START 126.5
HIERARCH ESO ISS PBLA13 END 127.2
HIERARCH ESO ISS PBL14 START 96.122
HIERARCH ESO ISS PBL14 END 95.258
HIERARCH ESO ISS PBLA14 START 100.015
HIERARCH ESO ISS PBLA14 END 100.559
HIERARCH ESO ISS PBL23 START 43.382
HIERARCH ESO ISS PBL23 END 42.986
HIERARCH ESO ISS PBLA23 START 78.7
HIERARCH ESO ISS PBLA23 END 79.0
HIERARCH ESO ISS PBL24 START 75.58
HIERARCH ESO ISS PBL24 END 75.225
HIERARCH ESO ISS PBLA24 START 43.274
HIERARCH ESO ISS PBLA24 END 43.438
HIERARCH ESO ISS PBL34 START 47.411
HIERARCH ESO ISS PBL34 END 47.388
HIERARCH ESO ISS PBLA34 START 11.279
HIERARCH ESO ISS PBLA34 END 11.594
HIERARCH ESO ISS AMBI TAU0 START 0.002471
HIERARCH ESO ISS AMBI TAU0 END 0.002599
HIERARCH ESO ISS AMBI TEMP 10.41
HIERARCH ESO ISS AMBI FWHM START 1.4
HIERARCH ESO ISS AMBI FWHM END 1.37