Exposure
ID
GRAVI.2025-07-18T08:08:55.859_1
Header ID
GRAVI.2025-07-18T08:08:55.859
Date updated
2025-07-18 08:20:38 UTC+0000
Release date
2025-07-18 08:08:55 UTC+0000
UTC Start
2025-07-18 08:08:55.859
UTC End
2025-07-18 08:12:07.859
MJD Start
60874.33953541
MJD End
60874.341757632224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0073939999999999995
Ambient temperature (°C)
14.14
Seeing (arcsec)
0.485
Observation
ID
68848
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
51218
Name
tet_Psc
RA
351.989108
DEC
6.37875
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 89.3010 89.0740 112.8000 112.8000
A0-J2 129.1030 129.1800 92.9000 92.8000
A0-K0 124.4030 124.8500 73.8360 73.7880
G1-J2 54.4670 54.7440 58.9000 59.0000
G1-K0 78.6260 78.9650 28.2160 28.5630
J2-K0 42.2090 42.1230 347.0530 347.4590
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 60874.33953541
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME tet Psc
HIERARCH ESO INS SOBJ NAME tet_Psc
RA 351.989108
DEC 6.37875
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 89.301
HIERARCH ESO ISS PBL12 END 89.074
HIERARCH ESO ISS PBLA12 START 112.8
HIERARCH ESO ISS PBLA12 END 112.8
HIERARCH ESO ISS PBL13 START 129.103
HIERARCH ESO ISS PBL13 END 129.18
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.8
HIERARCH ESO ISS PBL14 START 124.403
HIERARCH ESO ISS PBL14 END 124.85
HIERARCH ESO ISS PBLA14 START 73.836
HIERARCH ESO ISS PBLA14 END 73.788
HIERARCH ESO ISS PBL23 START 54.467
HIERARCH ESO ISS PBL23 END 54.744
HIERARCH ESO ISS PBLA23 START 58.9
HIERARCH ESO ISS PBLA23 END 59.0
HIERARCH ESO ISS PBL24 START 78.626
HIERARCH ESO ISS PBL24 END 78.965
HIERARCH ESO ISS PBLA24 START 28.216
HIERARCH ESO ISS PBLA24 END 28.563
HIERARCH ESO ISS PBL34 START 42.209
HIERARCH ESO ISS PBL34 END 42.123
HIERARCH ESO ISS PBLA34 START 347.053
HIERARCH ESO ISS PBLA34 END 347.459
HIERARCH ESO ISS AMBI TAU0 START 0.007373
HIERARCH ESO ISS AMBI TAU0 END 0.007415
HIERARCH ESO ISS AMBI TEMP 14.14
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.48