Exposure
ID
GRAVI.2025-09-21T01:18:18.423_1
Header ID
GRAVI.2025-09-21T01:18:18.423
Date updated
2025-09-21 01:30:51 UTC+0000
Release date
2025-09-21 01:18:18 UTC+0000
UTC Start
2025-09-21 01:18:18.423
UTC End
2025-09-21 01:20:58.423
MJD Start
60939.0543799
MJD End
60939.056231751856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0022385
Ambient temperature (°C)
11.88
Seeing (arcsec)
0.815
Observation
ID
70465
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
52251
Name
HD_179130
RA
287.977146
DEC
-14.58451
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 83.8340 83.4750 123.4000 123.7000
A0-J2 120.8750 120.3010 98.5000 98.7000
A0-K0 122.8670 122.4240 75.9700 76.1040
G1-J2 57.0580 56.9290 60.3000 60.4000
G1-K0 90.4680 90.4540 32.9450 33.1170
J2-K0 47.6300 47.6290 359.5760 359.9100
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 60939.0543799
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 179130
HIERARCH ESO INS SOBJ NAME HD_179130
RA 287.977146
DEC -14.58451
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 83.834
HIERARCH ESO ISS PBL12 END 83.475
HIERARCH ESO ISS PBLA12 START 123.4
HIERARCH ESO ISS PBLA12 END 123.7
HIERARCH ESO ISS PBL13 START 120.875
HIERARCH ESO ISS PBL13 END 120.301
HIERARCH ESO ISS PBLA13 START 98.5
HIERARCH ESO ISS PBLA13 END 98.7
HIERARCH ESO ISS PBL14 START 122.867
HIERARCH ESO ISS PBL14 END 122.424
HIERARCH ESO ISS PBLA14 START 75.97
HIERARCH ESO ISS PBLA14 END 76.104
HIERARCH ESO ISS PBL23 START 57.058
HIERARCH ESO ISS PBL23 END 56.929
HIERARCH ESO ISS PBLA23 START 60.3
HIERARCH ESO ISS PBLA23 END 60.4
HIERARCH ESO ISS PBL24 START 90.468
HIERARCH ESO ISS PBL24 END 90.454
HIERARCH ESO ISS PBLA24 START 32.945
HIERARCH ESO ISS PBLA24 END 33.117
HIERARCH ESO ISS PBL34 START 47.63
HIERARCH ESO ISS PBL34 END 47.629
HIERARCH ESO ISS PBLA34 START 359.576
HIERARCH ESO ISS PBLA34 END 359.91
HIERARCH ESO ISS AMBI TAU0 START 0.001982
HIERARCH ESO ISS AMBI TAU0 END 0.002495
HIERARCH ESO ISS AMBI TEMP 11.88
HIERARCH ESO ISS AMBI FWHM START 0.82
HIERARCH ESO ISS AMBI FWHM END 0.81