Exposure
ID
GRAVI.2025-06-24T07:07:58.464_1
Header ID
GRAVI.2025-06-24T07:07:58.464
Date updated
2025-06-24 07:20:59 UTC+0000
Release date
2025-06-24 07:07:58 UTC+0000
UTC Start
2025-06-24 07:07:58.464
UTC End
2025-06-24 07:11:10.464
MJD Start
60850.29720444
MJD End
60850.299426662226
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.002686
Ambient temperature (°C)
11.09
Seeing (arcsec)
0.65
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 24.5080 24.4740 158.4000 159.0000
A0-D0 28.5670 28.3530 82.1000 82.4000
A0-C1 20.7620 20.6620 131.9590 132.5870
B2-D0 32.9400 32.8680 35.8000 36.0000
B2-C1 10.9730 10.9500 35.7690 35.9740
D0-C1 21.9670 21.9190 215.8290 216.0330
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 60850.29720444
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 24.508
HIERARCH ESO ISS PBL12 END 24.474
HIERARCH ESO ISS PBLA12 START 158.4
HIERARCH ESO ISS PBLA12 END 159.0
HIERARCH ESO ISS PBL13 START 28.567
HIERARCH ESO ISS PBL13 END 28.353
HIERARCH ESO ISS PBLA13 START 82.1
HIERARCH ESO ISS PBLA13 END 82.4
HIERARCH ESO ISS PBL14 START 20.762
HIERARCH ESO ISS PBL14 END 20.662
HIERARCH ESO ISS PBLA14 START 131.959
HIERARCH ESO ISS PBLA14 END 132.587
HIERARCH ESO ISS PBL23 START 32.94
HIERARCH ESO ISS PBL23 END 32.868
HIERARCH ESO ISS PBLA23 START 35.8
HIERARCH ESO ISS PBLA23 END 36.0
HIERARCH ESO ISS PBL24 START 10.973
HIERARCH ESO ISS PBL24 END 10.95
HIERARCH ESO ISS PBLA24 START 35.769
HIERARCH ESO ISS PBLA24 END 35.974
HIERARCH ESO ISS PBL34 START 21.967
HIERARCH ESO ISS PBL34 END 21.919
HIERARCH ESO ISS PBLA34 START 215.829
HIERARCH ESO ISS PBLA34 END 216.033
HIERARCH ESO ISS AMBI TAU0 START 0.002533
HIERARCH ESO ISS AMBI TAU0 END 0.002839
HIERARCH ESO ISS AMBI TEMP 11.09
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.62