Exposure
ID
GRAVI.2025-06-20T04:31:03.315_1
Header ID
GRAVI.2025-06-20T04:31:03.315
Date updated
2025-06-20 04:40:52 UTC+0000
Release date
2025-06-20 04:31:03 UTC+0000
UTC Start
2025-06-20 04:31:03.315
UTC End
2025-06-20 04:34:15.315
MJD Start
60846.18823281
MJD End
60846.19045503222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0039695
Ambient temperature (°C)
12.88
Seeing (arcsec)
0.8500000000000001
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 67.4350 67.2810 278.0000 278.6000
K0-D0 93.8170 93.5420 257.3000 257.8000
K0-J3 56.4320 56.4500 338.1290 338.5940
G2-D0 38.9330 38.8530 219.5000 219.8000
G2-J3 62.7430 62.5920 46.8180 47.2020
D0-J3 101.4790 101.2470 44.0070 44.3850
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 60846.18823281
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 67.435
HIERARCH ESO ISS PBL12 END 67.281
HIERARCH ESO ISS PBLA12 START 278.0
HIERARCH ESO ISS PBLA12 END 278.6
HIERARCH ESO ISS PBL13 START 93.817
HIERARCH ESO ISS PBL13 END 93.542
HIERARCH ESO ISS PBLA13 START 257.3
HIERARCH ESO ISS PBLA13 END 257.8
HIERARCH ESO ISS PBL14 START 56.432
HIERARCH ESO ISS PBL14 END 56.45
HIERARCH ESO ISS PBLA14 START 338.129
HIERARCH ESO ISS PBLA14 END 338.594
HIERARCH ESO ISS PBL23 START 38.933
HIERARCH ESO ISS PBL23 END 38.853
HIERARCH ESO ISS PBLA23 START 219.5
HIERARCH ESO ISS PBLA23 END 219.8
HIERARCH ESO ISS PBL24 START 62.743
HIERARCH ESO ISS PBL24 END 62.592
HIERARCH ESO ISS PBLA24 START 46.818
HIERARCH ESO ISS PBLA24 END 47.202
HIERARCH ESO ISS PBL34 START 101.479
HIERARCH ESO ISS PBL34 END 101.247
HIERARCH ESO ISS PBLA34 START 44.007
HIERARCH ESO ISS PBLA34 END 44.385
HIERARCH ESO ISS AMBI TAU0 START 0.0041
HIERARCH ESO ISS AMBI TAU0 END 0.003839
HIERARCH ESO ISS AMBI TEMP 12.88
HIERARCH ESO ISS AMBI FWHM START 0.91
HIERARCH ESO ISS AMBI FWHM END 0.79