Exposure
ID
GRAVI.2025-04-06T07:37:57.303_1
Header ID
GRAVI.2025-04-06T07:37:57.303
Date updated
2025-04-06 07:50:50 UTC+0000
Release date
2025-04-06 07:37:57 UTC+0000
UTC Start
2025-04-06 07:37:57.303
UTC End
2025-04-06 07:41:09.303
MJD Start
60771.31802434
MJD End
60771.32024656222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0037145
Ambient temperature (°C)
13.51
Seeing (arcsec)
0.585
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 24.3730 24.4360 135.6000 136.0000
A0-D0 31.6140 31.6710 62.4000 63.0000
A0-C1 21.7640 21.8410 108.0190 108.4540
B2-D0 33.8860 33.8780 18.9000 19.3000
B2-C1 11.2880 11.2850 18.8370 19.2990
D0-C1 22.5990 22.5930 198.8990 199.3600
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 60771.31802434
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 24.373
HIERARCH ESO ISS PBL12 END 24.436
HIERARCH ESO ISS PBLA12 START 135.6
HIERARCH ESO ISS PBLA12 END 136.0
HIERARCH ESO ISS PBL13 START 31.614
HIERARCH ESO ISS PBL13 END 31.671
HIERARCH ESO ISS PBLA13 START 62.4
HIERARCH ESO ISS PBLA13 END 63.0
HIERARCH ESO ISS PBL14 START 21.764
HIERARCH ESO ISS PBL14 END 21.841
HIERARCH ESO ISS PBLA14 START 108.019
HIERARCH ESO ISS PBLA14 END 108.454
HIERARCH ESO ISS PBL23 START 33.886
HIERARCH ESO ISS PBL23 END 33.878
HIERARCH ESO ISS PBLA23 START 18.9
HIERARCH ESO ISS PBLA23 END 19.3
HIERARCH ESO ISS PBL24 START 11.288
HIERARCH ESO ISS PBL24 END 11.285
HIERARCH ESO ISS PBLA24 START 18.837
HIERARCH ESO ISS PBLA24 END 19.299
HIERARCH ESO ISS PBL34 START 22.599
HIERARCH ESO ISS PBL34 END 22.593
HIERARCH ESO ISS PBLA34 START 198.899
HIERARCH ESO ISS PBLA34 END 199.36
HIERARCH ESO ISS AMBI TAU0 START 0.003699
HIERARCH ESO ISS AMBI TAU0 END 0.00373
HIERARCH ESO ISS AMBI TEMP 13.51
HIERARCH ESO ISS AMBI FWHM START 0.58
HIERARCH ESO ISS AMBI FWHM END 0.59