Exposure
ID
GRAVI.2025-06-24T06:19:13.339_1
Header ID
GRAVI.2025-06-24T06:19:13.339
Date updated
2025-06-24 06:30:57 UTC+0000
Release date
2025-06-24 06:19:13 UTC+0000
UTC Start
2025-06-24 06:19:13.339
UTC End
2025-06-24 06:22:25.339
MJD Start
60850.26334883
MJD End
60850.26557105222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.003179
Ambient temperature (°C)
11.32
Seeing (arcsec)
0.655
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 25.0230 25.0120 167.0000 167.6000
A0-D0 25.2550 24.9880 93.8000 94.4000
A0-C1 20.7440 20.6730 144.1420 144.9310
B2-D0 29.9600 29.8190 40.8000 41.0000
B2-C1 9.9820 9.9350 40.7180 40.9170
D0-C1 19.9790 19.8840 220.7830 220.9810
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 60850.26334883
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 25.023
HIERARCH ESO ISS PBL12 END 25.012
HIERARCH ESO ISS PBLA12 START 167.0
HIERARCH ESO ISS PBLA12 END 167.6
HIERARCH ESO ISS PBL13 START 25.255
HIERARCH ESO ISS PBL13 END 24.988
HIERARCH ESO ISS PBLA13 START 93.8
HIERARCH ESO ISS PBLA13 END 94.4
HIERARCH ESO ISS PBL14 START 20.744
HIERARCH ESO ISS PBL14 END 20.673
HIERARCH ESO ISS PBLA14 START 144.142
HIERARCH ESO ISS PBLA14 END 144.931
HIERARCH ESO ISS PBL23 START 29.96
HIERARCH ESO ISS PBL23 END 29.819
HIERARCH ESO ISS PBLA23 START 40.8
HIERARCH ESO ISS PBLA23 END 41.0
HIERARCH ESO ISS PBL24 START 9.982
HIERARCH ESO ISS PBL24 END 9.935
HIERARCH ESO ISS PBLA24 START 40.718
HIERARCH ESO ISS PBLA24 END 40.917
HIERARCH ESO ISS PBL34 START 19.979
HIERARCH ESO ISS PBL34 END 19.884
HIERARCH ESO ISS PBLA34 START 220.783
HIERARCH ESO ISS PBLA34 END 220.981
HIERARCH ESO ISS AMBI TAU0 START 0.003368
HIERARCH ESO ISS AMBI TAU0 END 0.00299
HIERARCH ESO ISS AMBI TEMP 11.32
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.67