Exposure
ID
GRAVI.2025-06-21T03:48:37.155_1
Header ID
GRAVI.2025-06-21T03:48:37.155
Date updated
2025-06-21 04:00:41 UTC+0000
Release date
2025-06-21 03:48:37 UTC+0000
UTC Start
2025-06-21 03:48:37.155
UTC End
2025-06-21 03:51:49.155
MJD Start
60847.15876337
MJD End
60847.16098559222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0048885000000000005
Ambient temperature (°C)
11.97
Seeing (arcsec)
0.75
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 68.3280 68.3000 272.6000 273.1000
K0-D0 95.6910 95.5890 252.3000 252.8000
K0-J3 56.1170 56.1580 333.5070 333.9310
G2-D0 39.5690 39.5220 215.3000 215.8000
G2-J3 63.9140 63.8320 42.5520 42.9820
D0-J3 103.2900 103.1610 39.7990 40.2230
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 60847.15876337
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 68.328
HIERARCH ESO ISS PBL12 END 68.3
HIERARCH ESO ISS PBLA12 START 272.6
HIERARCH ESO ISS PBLA12 END 273.1
HIERARCH ESO ISS PBL13 START 95.691
HIERARCH ESO ISS PBL13 END 95.589
HIERARCH ESO ISS PBLA13 START 252.3
HIERARCH ESO ISS PBLA13 END 252.8
HIERARCH ESO ISS PBL14 START 56.117
HIERARCH ESO ISS PBL14 END 56.158
HIERARCH ESO ISS PBLA14 START 333.507
HIERARCH ESO ISS PBLA14 END 333.931
HIERARCH ESO ISS PBL23 START 39.569
HIERARCH ESO ISS PBL23 END 39.522
HIERARCH ESO ISS PBLA23 START 215.3
HIERARCH ESO ISS PBLA23 END 215.8
HIERARCH ESO ISS PBL24 START 63.914
HIERARCH ESO ISS PBL24 END 63.832
HIERARCH ESO ISS PBLA24 START 42.552
HIERARCH ESO ISS PBLA24 END 42.982
HIERARCH ESO ISS PBL34 START 103.29
HIERARCH ESO ISS PBL34 END 103.161
HIERARCH ESO ISS PBLA34 START 39.799
HIERARCH ESO ISS PBLA34 END 40.223
HIERARCH ESO ISS AMBI TAU0 START 0.004814
HIERARCH ESO ISS AMBI TAU0 END 0.004963
HIERARCH ESO ISS AMBI TEMP 11.97
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.74