Exposure
ID
GRAVI.2025-05-27T05:15:02.894_1
Header ID
GRAVI.2025-05-27T05:15:02.894
Date updated
2025-05-27 05:26:05 UTC+0000
Release date
2026-05-27 05:26:05 UTC+0000
UTC Start
2025-05-27 05:15:02.894
UTC End
2025-05-27 05:17:42.894
MJD Start
60822.2187835
MJD End
60822.220635351856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0045769999999999995
Ambient temperature (°C)
10.84
Seeing (arcsec)
0.595
Observation
ID
67606
Category
science
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
50278
Name
BD-194849
RA
271.882413
DEC
-19.294
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 87.7970 88.0430 110.4000 110.5000
A0-J2 123.2230 123.6880 86.5000 86.8000
A0-K0 121.5870 122.0170 63.5980 63.9420
G1-J2 55.6990 55.8490 46.9000 47.3000
G1-K0 88.6830 88.7490 17.4460 17.8240
J2-K0 48.6390 48.6360 343.1630 343.4220
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60822.2187835
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME BD-19 4849
HIERARCH ESO INS SOBJ NAME BD-194849
RA 271.882413
DEC -19.294
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 87.797
HIERARCH ESO ISS PBL12 END 88.043
HIERARCH ESO ISS PBLA12 START 110.4
HIERARCH ESO ISS PBLA12 END 110.5
HIERARCH ESO ISS PBL13 START 123.223
HIERARCH ESO ISS PBL13 END 123.688
HIERARCH ESO ISS PBLA13 START 86.5
HIERARCH ESO ISS PBLA13 END 86.8
HIERARCH ESO ISS PBL14 START 121.587
HIERARCH ESO ISS PBL14 END 122.017
HIERARCH ESO ISS PBLA14 START 63.598
HIERARCH ESO ISS PBLA14 END 63.942
HIERARCH ESO ISS PBL23 START 55.699
HIERARCH ESO ISS PBL23 END 55.849
HIERARCH ESO ISS PBLA23 START 46.9
HIERARCH ESO ISS PBLA23 END 47.3
HIERARCH ESO ISS PBL24 START 88.683
HIERARCH ESO ISS PBL24 END 88.749
HIERARCH ESO ISS PBLA24 START 17.446
HIERARCH ESO ISS PBLA24 END 17.824
HIERARCH ESO ISS PBL34 START 48.639
HIERARCH ESO ISS PBL34 END 48.636
HIERARCH ESO ISS PBLA34 START 343.163
HIERARCH ESO ISS PBLA34 END 343.422
HIERARCH ESO ISS AMBI TAU0 START 0.004611
HIERARCH ESO ISS AMBI TAU0 END 0.004543
HIERARCH ESO ISS AMBI TEMP 10.84
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.56