Exposure
ID
GRAVI.2025-04-30T08:32:13.954_1
Header ID
GRAVI.2025-04-30T08:32:13.954
Date updated
2025-04-30 08:40:59 UTC+0000
Release date
2025-04-30 08:32:13 UTC+0000
UTC Start
2025-04-30 08:32:13.954
UTC End
2025-04-30 08:34:53.954
MJD Start
60795.35571706
MJD End
60795.35756891186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0051825
Ambient temperature (°C)
11.68
Seeing (arcsec)
0.65
Observation
ID
67066
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
49866
Name
HD_157097
RA
260.726871
DEC
-37.22101
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 48.3960 48.4140 158.5000 158.9000
A0-J2 126.7570 126.4970 102.0000 102.5000
A0-J6 162.0340 161.7460 33.0600 33.3540
B5-J2 107.8320 107.5180 80.1000 80.5000
B5-J6 194.1240 193.9120 21.3360 21.6270
J2-J6 166.0670 166.1210 347.6250 347.9880
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 60795.35571706
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 157097
HIERARCH ESO INS SOBJ NAME HD_157097
RA 260.726871
DEC -37.22101
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 48.396
HIERARCH ESO ISS PBL12 END 48.414
HIERARCH ESO ISS PBLA12 START 158.5
HIERARCH ESO ISS PBLA12 END 158.9
HIERARCH ESO ISS PBL13 START 126.757
HIERARCH ESO ISS PBL13 END 126.497
HIERARCH ESO ISS PBLA13 START 102.0
HIERARCH ESO ISS PBLA13 END 102.5
HIERARCH ESO ISS PBL14 START 162.034
HIERARCH ESO ISS PBL14 END 161.746
HIERARCH ESO ISS PBLA14 START 33.06
HIERARCH ESO ISS PBLA14 END 33.354
HIERARCH ESO ISS PBL23 START 107.832
HIERARCH ESO ISS PBL23 END 107.518
HIERARCH ESO ISS PBLA23 START 80.1
HIERARCH ESO ISS PBLA23 END 80.5
HIERARCH ESO ISS PBL24 START 194.124
HIERARCH ESO ISS PBL24 END 193.912
HIERARCH ESO ISS PBLA24 START 21.336
HIERARCH ESO ISS PBLA24 END 21.627
HIERARCH ESO ISS PBL34 START 166.067
HIERARCH ESO ISS PBL34 END 166.121
HIERARCH ESO ISS PBLA34 START 347.625
HIERARCH ESO ISS PBLA34 END 347.988
HIERARCH ESO ISS AMBI TAU0 START 0.005215
HIERARCH ESO ISS AMBI TAU0 END 0.00515
HIERARCH ESO ISS AMBI TEMP 11.68
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.64