Exposure
ID
GRAVI.2025-04-05T07:40:31.568_1
Header ID
GRAVI.2025-04-05T07:40:31.568
Date updated
2025-04-05 07:50:49 UTC+0000
Release date
2025-04-05 07:40:31 UTC+0000
UTC Start
2025-04-05 07:40:31.568
UTC End
2025-04-05 07:43:43.568
MJD Start
60770.31980981
MJD End
60770.32203203222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0069835
Ambient temperature (°C)
14.47
Seeing (arcsec)
0.49
Observation
ID
66046
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
49165
Name
24_Sgr
RA
278.470409
DEC
-24.03232
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 22.9390 23.0550 131.6000 131.8000
A0-D0 27.0940 27.2810 48.5000 49.2000
A0-C1 18.6660 18.8470 102.9540 103.2010
B2-D0 33.3320 33.3410 5.4000 6.0000
B2-C1 11.1040 11.1070 5.3900 5.9250
D0-C1 22.2280 22.2340 185.4430 185.9790
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 60770.31980981
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME 24 Sgr
HIERARCH ESO INS SOBJ NAME 24_Sgr
RA 278.470409
DEC -24.03232
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 22.939
HIERARCH ESO ISS PBL12 END 23.055
HIERARCH ESO ISS PBLA12 START 131.6
HIERARCH ESO ISS PBLA12 END 131.8
HIERARCH ESO ISS PBL13 START 27.094
HIERARCH ESO ISS PBL13 END 27.281
HIERARCH ESO ISS PBLA13 START 48.5
HIERARCH ESO ISS PBLA13 END 49.2
HIERARCH ESO ISS PBL14 START 18.666
HIERARCH ESO ISS PBL14 END 18.847
HIERARCH ESO ISS PBLA14 START 102.954
HIERARCH ESO ISS PBLA14 END 103.201
HIERARCH ESO ISS PBL23 START 33.332
HIERARCH ESO ISS PBL23 END 33.341
HIERARCH ESO ISS PBLA23 START 5.4
HIERARCH ESO ISS PBLA23 END 6.0
HIERARCH ESO ISS PBL24 START 11.104
HIERARCH ESO ISS PBL24 END 11.107
HIERARCH ESO ISS PBLA24 START 5.39
HIERARCH ESO ISS PBLA24 END 5.925
HIERARCH ESO ISS PBL34 START 22.228
HIERARCH ESO ISS PBL34 END 22.234
HIERARCH ESO ISS PBLA34 START 185.443
HIERARCH ESO ISS PBLA34 END 185.979
HIERARCH ESO ISS AMBI TAU0 START 0.00646
HIERARCH ESO ISS AMBI TAU0 END 0.007507
HIERARCH ESO ISS AMBI TEMP 14.47
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.44