Exposure
ID
GRAVI.2025-05-20T05:16:32.283_1
Header ID
GRAVI.2025-05-20T05:16:32.283
Date updated
2025-05-20 05:25:54 UTC+0000
Release date
2025-05-20 05:16:32 UTC+0000
UTC Start
2025-05-20 05:16:32.283
UTC End
2025-05-20 05:19:44.283
MJD Start
60815.21981809
MJD End
60815.22204031223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0102335
Ambient temperature (°C)
14.18
Seeing (arcsec)
0.405
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 24.8280 24.8700 138.8000 139.2000
A0-D0 31.9600 31.9790 67.1000 67.6000
A0-C1 22.3040 22.3490 111.8830 112.3470
B2-D0 33.7840 33.7670 22.8000 23.2000
B2-C1 11.2540 11.2480 22.7560 23.1990
D0-C1 22.5300 22.5190 202.8180 203.2620
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 60815.21981809
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 24.828
HIERARCH ESO ISS PBL12 END 24.87
HIERARCH ESO ISS PBLA12 START 138.8
HIERARCH ESO ISS PBLA12 END 139.2
HIERARCH ESO ISS PBL13 START 31.96
HIERARCH ESO ISS PBL13 END 31.979
HIERARCH ESO ISS PBLA13 START 67.1
HIERARCH ESO ISS PBLA13 END 67.6
HIERARCH ESO ISS PBL14 START 22.304
HIERARCH ESO ISS PBL14 END 22.349
HIERARCH ESO ISS PBLA14 START 111.883
HIERARCH ESO ISS PBLA14 END 112.347
HIERARCH ESO ISS PBL23 START 33.784
HIERARCH ESO ISS PBL23 END 33.767
HIERARCH ESO ISS PBLA23 START 22.8
HIERARCH ESO ISS PBLA23 END 23.2
HIERARCH ESO ISS PBL24 START 11.254
HIERARCH ESO ISS PBL24 END 11.248
HIERARCH ESO ISS PBLA24 START 22.756
HIERARCH ESO ISS PBLA24 END 23.199
HIERARCH ESO ISS PBL34 START 22.53
HIERARCH ESO ISS PBL34 END 22.519
HIERARCH ESO ISS PBLA34 START 202.818
HIERARCH ESO ISS PBLA34 END 203.262
HIERARCH ESO ISS AMBI TAU0 START 0.01005
HIERARCH ESO ISS AMBI TAU0 END 0.010417
HIERARCH ESO ISS AMBI TEMP 14.18
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.4