Exposure
ID
GRAVI.2025-04-04T05:27:54.340_1
Header ID
GRAVI.2025-04-04T05:27:54.340
Date updated
2025-04-04 05:40:42 UTC+0000
Release date
2025-04-04 05:27:54 UTC+0000
UTC Start
2025-04-04 05:27:54.340
UTC End
2025-04-04 05:31:06.340
MJD Start
60769.22771227
MJD End
60769.22993449223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.007058
Ambient temperature (°C)
14.23
Seeing (arcsec)
0.575
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 20.0490 20.2160 125.6000 125.8000
A0-D0 27.4680 27.5980 35.9000 36.8000
A0-C1 16.2360 16.4470 91.3430 91.8350
B2-D0 33.9190 33.9190 359.7000 0.2000
B2-C1 11.2990 11.2990 359.6710 0.2060
D0-C1 22.6200 22.6200 179.7170 180.2520
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 60769.22771227
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 20.049
HIERARCH ESO ISS PBL12 END 20.216
HIERARCH ESO ISS PBLA12 START 125.6
HIERARCH ESO ISS PBLA12 END 125.8
HIERARCH ESO ISS PBL13 START 27.468
HIERARCH ESO ISS PBL13 END 27.598
HIERARCH ESO ISS PBLA13 START 35.9
HIERARCH ESO ISS PBLA13 END 36.8
HIERARCH ESO ISS PBL14 START 16.236
HIERARCH ESO ISS PBL14 END 16.447
HIERARCH ESO ISS PBLA14 START 91.343
HIERARCH ESO ISS PBLA14 END 91.835
HIERARCH ESO ISS PBL23 START 33.919
HIERARCH ESO ISS PBL23 END 33.919
HIERARCH ESO ISS PBLA23 START 359.7
HIERARCH ESO ISS PBLA23 END 0.2
HIERARCH ESO ISS PBL24 START 11.299
HIERARCH ESO ISS PBL24 END 11.299
HIERARCH ESO ISS PBLA24 START 359.671
HIERARCH ESO ISS PBLA24 END 0.206
HIERARCH ESO ISS PBL34 START 22.62
HIERARCH ESO ISS PBL34 END 22.62
HIERARCH ESO ISS PBLA34 START 179.717
HIERARCH ESO ISS PBLA34 END 180.252
HIERARCH ESO ISS AMBI TAU0 START 0.007425
HIERARCH ESO ISS AMBI TAU0 END 0.006691
HIERARCH ESO ISS AMBI TEMP 14.23
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.6