Exposure
ID
GRAVI.2025-07-18T08:24:28.899_1
Header ID
GRAVI.2025-07-18T08:24:28.899
Date updated
2025-07-18 08:35:45 UTC+0000
Release date
2026-07-18 08:35:45 UTC+0000
UTC Start
2025-07-18 08:24:28.899
UTC End
2025-07-18 08:27:40.899
MJD Start
60874.35033448
MJD End
60874.35255670222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0059725
Ambient temperature (°C)
14.33
Seeing (arcsec)
0.63
Observation
ID
68849
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
51219
Name
3_Cet
RA
1.123198
DEC
-10.50959
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 90.4440 90.4840 113.5000 113.7000
A0-J2 127.8250 128.1120 91.1000 91.2000
A0-K0 124.5780 125.0020 69.4040 69.6430
G1-J2 56.0880 56.2830 53.1000 53.4000
G1-K0 86.6920 86.8520 22.8530 23.2680
J2-K0 47.5520 47.5140 346.3910 346.7510
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 60874.35033448
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME 3 Cet
HIERARCH ESO INS SOBJ NAME 3_Cet
RA 1.123198
DEC -10.50959
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 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 90.444
HIERARCH ESO ISS PBL12 END 90.484
HIERARCH ESO ISS PBLA12 START 113.5
HIERARCH ESO ISS PBLA12 END 113.7
HIERARCH ESO ISS PBL13 START 127.825
HIERARCH ESO ISS PBL13 END 128.112
HIERARCH ESO ISS PBLA13 START 91.1
HIERARCH ESO ISS PBLA13 END 91.2
HIERARCH ESO ISS PBL14 START 124.578
HIERARCH ESO ISS PBL14 END 125.002
HIERARCH ESO ISS PBLA14 START 69.404
HIERARCH ESO ISS PBLA14 END 69.643
HIERARCH ESO ISS PBL23 START 56.088
HIERARCH ESO ISS PBL23 END 56.283
HIERARCH ESO ISS PBLA23 START 53.1
HIERARCH ESO ISS PBLA23 END 53.4
HIERARCH ESO ISS PBL24 START 86.692
HIERARCH ESO ISS PBL24 END 86.852
HIERARCH ESO ISS PBLA24 START 22.853
HIERARCH ESO ISS PBLA24 END 23.268
HIERARCH ESO ISS PBL34 START 47.552
HIERARCH ESO ISS PBL34 END 47.514
HIERARCH ESO ISS PBLA34 START 346.391
HIERARCH ESO ISS PBLA34 END 346.751
HIERARCH ESO ISS AMBI TAU0 START 0.005851
HIERARCH ESO ISS AMBI TAU0 END 0.006094
HIERARCH ESO ISS AMBI TEMP 14.33
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.74