Exposure
ID
GRAVI.2025-06-24T06:02:46.298_1
Header ID
GRAVI.2025-06-24T06:02:46.298
Date updated
2025-06-24 06:15:40 UTC+0000
Release date
2025-06-24 06:02:46 UTC+0000
UTC Start
2025-06-24 06:02:46.298
UTC End
2025-06-24 06:05:58.298
MJD Start
60850.25192474
MJD End
60850.25414696222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0044605
Ambient temperature (°C)
11.28
Seeing (arcsec)
0.54
Observation
ID
68225
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
50708
Name
HD_152636
RA
253.988065
DEC
-33.50683
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 25.0760 25.0640 164.2000 164.8000
A0-D0 26.3870 26.1420 91.4000 92.0000
A0-C1 21.0600 20.9900 140.7340 141.4790
B2-D0 30.5560 30.4280 39.8000 40.0000
B2-C1 10.1800 10.1370 39.7680 39.9870
D0-C1 20.3760 20.2910 219.8320 220.0520
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 60850.25192474
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 152636
HIERARCH ESO INS SOBJ NAME HD_152636
RA 253.988065
DEC -33.50683
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 25.076
HIERARCH ESO ISS PBL12 END 25.064
HIERARCH ESO ISS PBLA12 START 164.2
HIERARCH ESO ISS PBLA12 END 164.8
HIERARCH ESO ISS PBL13 START 26.387
HIERARCH ESO ISS PBL13 END 26.142
HIERARCH ESO ISS PBLA13 START 91.4
HIERARCH ESO ISS PBLA13 END 92.0
HIERARCH ESO ISS PBL14 START 21.06
HIERARCH ESO ISS PBL14 END 20.99
HIERARCH ESO ISS PBLA14 START 140.734
HIERARCH ESO ISS PBLA14 END 141.479
HIERARCH ESO ISS PBL23 START 30.556
HIERARCH ESO ISS PBL23 END 30.428
HIERARCH ESO ISS PBLA23 START 39.8
HIERARCH ESO ISS PBLA23 END 40.0
HIERARCH ESO ISS PBL24 START 10.18
HIERARCH ESO ISS PBL24 END 10.137
HIERARCH ESO ISS PBLA24 START 39.768
HIERARCH ESO ISS PBLA24 END 39.987
HIERARCH ESO ISS PBL34 START 20.376
HIERARCH ESO ISS PBL34 END 20.291
HIERARCH ESO ISS PBLA34 START 219.832
HIERARCH ESO ISS PBLA34 END 220.052
HIERARCH ESO ISS AMBI TAU0 START 0.004629
HIERARCH ESO ISS AMBI TAU0 END 0.004292
HIERARCH ESO ISS AMBI TEMP 11.28
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.56