Exposure
ID
GRAVI.2025-04-06T07:46:09.324_1
Header ID
GRAVI.2025-04-06T07:46:09.324
Date updated
2025-04-06 08:01:02 UTC+0000
Release date
2025-04-06 07:46:09 UTC+0000
UTC Start
2025-04-06 07:46:09.324
UTC End
2025-04-06 07:49:21.324
MJD Start
60771.32371903
MJD End
60771.325941252224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0028135
Ambient temperature (°C)
13.54
Seeing (arcsec)
0.765
Observation
ID
66034
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
49155
Name
HD_152636
RA
253.988066
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 24.5090 24.5660 136.4000 136.8000
A0-D0 31.7350 31.7830 63.6000 64.2000
A0-C1 21.9300 21.9990 108.9970 109.4550
B2-D0 33.8670 33.8560 19.9000 20.4000
B2-C1 11.2810 11.2780 19.8680 20.3410
D0-C1 22.5860 22.5790 199.9300 200.4030
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 60771.32371903
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 152636
HIERARCH ESO INS SOBJ NAME HD_152636
RA 253.988066
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 24.509
HIERARCH ESO ISS PBL12 END 24.566
HIERARCH ESO ISS PBLA12 START 136.4
HIERARCH ESO ISS PBLA12 END 136.8
HIERARCH ESO ISS PBL13 START 31.735
HIERARCH ESO ISS PBL13 END 31.783
HIERARCH ESO ISS PBLA13 START 63.6
HIERARCH ESO ISS PBLA13 END 64.2
HIERARCH ESO ISS PBL14 START 21.93
HIERARCH ESO ISS PBL14 END 21.999
HIERARCH ESO ISS PBLA14 START 108.997
HIERARCH ESO ISS PBLA14 END 109.455
HIERARCH ESO ISS PBL23 START 33.867
HIERARCH ESO ISS PBL23 END 33.856
HIERARCH ESO ISS PBLA23 START 19.9
HIERARCH ESO ISS PBLA23 END 20.4
HIERARCH ESO ISS PBL24 START 11.281
HIERARCH ESO ISS PBL24 END 11.278
HIERARCH ESO ISS PBLA24 START 19.868
HIERARCH ESO ISS PBLA24 END 20.341
HIERARCH ESO ISS PBL34 START 22.586
HIERARCH ESO ISS PBL34 END 22.579
HIERARCH ESO ISS PBLA34 START 199.93
HIERARCH ESO ISS PBLA34 END 200.403
HIERARCH ESO ISS AMBI TAU0 START 0.003102
HIERARCH ESO ISS AMBI TAU0 END 0.002525
HIERARCH ESO ISS AMBI TEMP 13.54
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.85