Exposure
ID
GRAVI.2025-07-18T07:52:31.818_1
Header ID
GRAVI.2025-07-18T07:52:31.818
Date updated
2025-07-18 08:05:34 UTC+0000
Release date
2025-07-18 07:52:31 UTC+0000
UTC Start
2025-07-18 07:52:31.818
UTC End
2025-07-18 07:55:43.818
MJD Start
60874.32814604
MJD End
60874.33036826223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.005339
Ambient temperature (°C)
14.35
Seeing (arcsec)
0.6699999999999999
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 90.0750 89.9350 113.1000 113.0000
A0-J2 128.3590 128.5840 93.4000 93.3000
A0-K0 122.0550 122.6360 73.9870 73.9600
G1-J2 53.1130 53.4360 58.5000 58.6000
G1-K0 77.1160 77.4570 26.5360 26.9320
J2-K0 42.6150 42.5200 345.2900 345.6790
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 60874.32814604
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 90.075
HIERARCH ESO ISS PBL12 END 89.935
HIERARCH ESO ISS PBLA12 START 113.1
HIERARCH ESO ISS PBLA12 END 113.0
HIERARCH ESO ISS PBL13 START 128.359
HIERARCH ESO ISS PBL13 END 128.584
HIERARCH ESO ISS PBLA13 START 93.4
HIERARCH ESO ISS PBLA13 END 93.3
HIERARCH ESO ISS PBL14 START 122.055
HIERARCH ESO ISS PBL14 END 122.636
HIERARCH ESO ISS PBLA14 START 73.987
HIERARCH ESO ISS PBLA14 END 73.96
HIERARCH ESO ISS PBL23 START 53.113
HIERARCH ESO ISS PBL23 END 53.436
HIERARCH ESO ISS PBLA23 START 58.5
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 77.116
HIERARCH ESO ISS PBL24 END 77.457
HIERARCH ESO ISS PBLA24 START 26.536
HIERARCH ESO ISS PBLA24 END 26.932
HIERARCH ESO ISS PBL34 START 42.615
HIERARCH ESO ISS PBL34 END 42.52
HIERARCH ESO ISS PBLA34 START 345.29
HIERARCH ESO ISS PBLA34 END 345.679
HIERARCH ESO ISS AMBI TAU0 START 0.004783
HIERARCH ESO ISS AMBI TAU0 END 0.005895
HIERARCH ESO ISS AMBI TEMP 14.35
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.75