Exposure
ID
GRAVI.2025-04-05T07:19:52.515_1
Header ID
GRAVI.2025-04-05T07:19:52.515
Date updated
2025-04-05 07:30:53 UTC+0000
Release date
2026-04-05 07:30:53 UTC+0000
UTC Start
2025-04-05 07:19:52.515
UTC End
2025-04-05 07:23:04.515
MJD Start
60770.30546892
MJD End
60770.307691142225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0068345
Ambient temperature (°C)
14.54
Seeing (arcsec)
0.495
Observation
ID
66045
Category
science
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
49164
Name
VX_Sgr
RA
272.014458
DEC
-22.22406
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 23.3090 23.4170 132.4000 132.5000
A0-D0 27.0110 27.2080 50.4000 51.1000
A0-C1 19.0070 19.1830 104.4280 104.6410
B2-D0 33.1330 33.1450 6.2000 6.7000
B2-C1 11.0380 11.0420 6.1650 6.7040
D0-C1 22.0950 22.1030 186.2190 186.7580
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60770.30546892
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V VX Sgr
HIERARCH ESO INS SOBJ NAME VX_Sgr
RA 272.014458
DEC -22.22406
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 23.309
HIERARCH ESO ISS PBL12 END 23.417
HIERARCH ESO ISS PBLA12 START 132.4
HIERARCH ESO ISS PBLA12 END 132.5
HIERARCH ESO ISS PBL13 START 27.011
HIERARCH ESO ISS PBL13 END 27.208
HIERARCH ESO ISS PBLA13 START 50.4
HIERARCH ESO ISS PBLA13 END 51.1
HIERARCH ESO ISS PBL14 START 19.007
HIERARCH ESO ISS PBL14 END 19.183
HIERARCH ESO ISS PBLA14 START 104.428
HIERARCH ESO ISS PBLA14 END 104.641
HIERARCH ESO ISS PBL23 START 33.133
HIERARCH ESO ISS PBL23 END 33.145
HIERARCH ESO ISS PBLA23 START 6.2
HIERARCH ESO ISS PBLA23 END 6.7
HIERARCH ESO ISS PBL24 START 11.038
HIERARCH ESO ISS PBL24 END 11.042
HIERARCH ESO ISS PBLA24 START 6.165
HIERARCH ESO ISS PBLA24 END 6.704
HIERARCH ESO ISS PBL34 START 22.095
HIERARCH ESO ISS PBL34 END 22.103
HIERARCH ESO ISS PBLA34 START 186.219
HIERARCH ESO ISS PBLA34 END 186.758
HIERARCH ESO ISS AMBI TAU0 START 0.006681
HIERARCH ESO ISS AMBI TAU0 END 0.006988
HIERARCH ESO ISS AMBI TEMP 14.54
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.55