Exposure
ID
GRAVI.2025-04-06T08:02:06.364_1
Header ID
GRAVI.2025-04-06T08:02:06.364
Date updated
2025-04-06 08:15:41 UTC+0000
Release date
2026-04-06 08:15:41 UTC+0000
UTC Start
2025-04-06 08:02:06.364
UTC End
2025-04-06 08:05:18.364
MJD Start
60771.33479588
MJD End
60771.337018102226
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0040135
Ambient temperature (°C)
13.36
Seeing (arcsec)
0.57
Observation
ID
66057
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
49176
Name
BD-154915
RA
274.604925
DEC
-15.30366
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 24.7530 24.8080 135.0000 135.1000
A0-D0 27.8840 28.0920 59.6000 60.1000
A0-C1 20.8770 21.0030 109.5120 109.6320
B2-D0 32.2750 32.3090 11.7000 12.2000
B2-C1 10.7520 10.7640 11.6680 12.1900
D0-C1 21.5230 21.5460 191.7290 192.2520
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 60771.33479588
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME BD-15 4915
HIERARCH ESO INS SOBJ NAME BD-154915
RA 274.604925
DEC -15.30366
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 24.753
HIERARCH ESO ISS PBL12 END 24.808
HIERARCH ESO ISS PBLA12 START 135.0
HIERARCH ESO ISS PBLA12 END 135.1
HIERARCH ESO ISS PBL13 START 27.884
HIERARCH ESO ISS PBL13 END 28.092
HIERARCH ESO ISS PBLA13 START 59.6
HIERARCH ESO ISS PBLA13 END 60.1
HIERARCH ESO ISS PBL14 START 20.877
HIERARCH ESO ISS PBL14 END 21.003
HIERARCH ESO ISS PBLA14 START 109.512
HIERARCH ESO ISS PBLA14 END 109.632
HIERARCH ESO ISS PBL23 START 32.275
HIERARCH ESO ISS PBL23 END 32.309
HIERARCH ESO ISS PBLA23 START 11.7
HIERARCH ESO ISS PBLA23 END 12.2
HIERARCH ESO ISS PBL24 START 10.752
HIERARCH ESO ISS PBL24 END 10.764
HIERARCH ESO ISS PBLA24 START 11.668
HIERARCH ESO ISS PBLA24 END 12.19
HIERARCH ESO ISS PBL34 START 21.523
HIERARCH ESO ISS PBL34 END 21.546
HIERARCH ESO ISS PBLA34 START 191.729
HIERARCH ESO ISS PBLA34 END 192.252
HIERARCH ESO ISS AMBI TAU0 START 0.003819
HIERARCH ESO ISS AMBI TAU0 END 0.004208
HIERARCH ESO ISS AMBI TEMP 13.36
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.57