Exposure
ID
GRAVI.2025-06-21T05:17:22.380_1
Header ID
GRAVI.2025-06-21T05:17:22.380
Date updated
2025-06-21 05:30:46 UTC+0000
Release date
2025-06-21 05:17:22 UTC+0000
UTC Start
2025-06-21 05:17:22.380
UTC End
2025-06-21 05:20:34.380
MJD Start
60847.22039792
MJD End
60847.22262014222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0042905
Ambient temperature (°C)
11.81
Seeing (arcsec)
0.515
Observation
ID
67542
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
50232
Name
HD_152636
RA
253.990732
DEC
-33.50683
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 64.3710 64.0680 285.6000 286.2000
K0-D0 88.6530 88.1520 263.7000 264.2000
K0-J3 56.5610 56.5620 344.7210 345.2280
G2-D0 37.5300 37.3990 224.1000 224.4000
G2-J3 60.0650 59.8120 51.6460 51.9690
D0-J3 97.3950 97.0110 48.7470 49.0620
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 60847.22039792
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 152636
HIERARCH ESO INS SOBJ NAME HD_152636
RA 253.990732
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 64.371
HIERARCH ESO ISS PBL12 END 64.068
HIERARCH ESO ISS PBLA12 START 285.6
HIERARCH ESO ISS PBLA12 END 286.2
HIERARCH ESO ISS PBL13 START 88.653
HIERARCH ESO ISS PBL13 END 88.152
HIERARCH ESO ISS PBLA13 START 263.7
HIERARCH ESO ISS PBLA13 END 264.2
HIERARCH ESO ISS PBL14 START 56.561
HIERARCH ESO ISS PBL14 END 56.562
HIERARCH ESO ISS PBLA14 START 344.721
HIERARCH ESO ISS PBLA14 END 345.228
HIERARCH ESO ISS PBL23 START 37.53
HIERARCH ESO ISS PBL23 END 37.399
HIERARCH ESO ISS PBLA23 START 224.1
HIERARCH ESO ISS PBLA23 END 224.4
HIERARCH ESO ISS PBL24 START 60.065
HIERARCH ESO ISS PBL24 END 59.812
HIERARCH ESO ISS PBLA24 START 51.646
HIERARCH ESO ISS PBLA24 END 51.969
HIERARCH ESO ISS PBL34 START 97.395
HIERARCH ESO ISS PBL34 END 97.011
HIERARCH ESO ISS PBLA34 START 48.747
HIERARCH ESO ISS PBLA34 END 49.062
HIERARCH ESO ISS AMBI TAU0 START 0.003422
HIERARCH ESO ISS AMBI TAU0 END 0.005159
HIERARCH ESO ISS AMBI TEMP 11.81
HIERARCH ESO ISS AMBI FWHM START 0.58
HIERARCH ESO ISS AMBI FWHM END 0.45