Exposure
ID
GRAVI.2025-08-23T03:25:30.033_1
Header ID
GRAVI.2025-08-23T03:25:30.033
Date updated
2025-08-23 03:35:38 UTC+0000
Release date
2025-08-23 03:25:30 UTC+0000
UTC Start
2025-08-23 03:25:30.033
UTC End
2025-08-23 03:28:10.033
MJD Start
60910.14270872
MJD End
60910.144560571855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0022195
Ambient temperature (°C)
2.51
Seeing (arcsec)
1.135
Observation
ID
70073
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
51988
Name
HD_162415
RA
268.069677
DEC
-31.32825
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 48.4490 48.4450 175.0000 175.5000
A0-J2 104.9450 104.2240 120.1000 120.7000
A0-J6 150.9860 150.4290 40.3170 40.4530
B5-J2 86.6650 85.8790 92.9000 93.3000
B5-J6 188.2430 187.8400 29.7750 29.9460
J2-J6 167.9580 167.9570 2.3610 2.7380
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 60910.14270872
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 162415
HIERARCH ESO INS SOBJ NAME HD_162415
RA 268.069677
DEC -31.32825
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 48.449
HIERARCH ESO ISS PBL12 END 48.445
HIERARCH ESO ISS PBLA12 START 175.0
HIERARCH ESO ISS PBLA12 END 175.5
HIERARCH ESO ISS PBL13 START 104.945
HIERARCH ESO ISS PBL13 END 104.224
HIERARCH ESO ISS PBLA13 START 120.1
HIERARCH ESO ISS PBLA13 END 120.7
HIERARCH ESO ISS PBL14 START 150.986
HIERARCH ESO ISS PBL14 END 150.429
HIERARCH ESO ISS PBLA14 START 40.317
HIERARCH ESO ISS PBLA14 END 40.453
HIERARCH ESO ISS PBL23 START 86.665
HIERARCH ESO ISS PBL23 END 85.879
HIERARCH ESO ISS PBLA23 START 92.9
HIERARCH ESO ISS PBLA23 END 93.3
HIERARCH ESO ISS PBL24 START 188.243
HIERARCH ESO ISS PBL24 END 187.84
HIERARCH ESO ISS PBLA24 START 29.775
HIERARCH ESO ISS PBLA24 END 29.946
HIERARCH ESO ISS PBL34 START 167.958
HIERARCH ESO ISS PBL34 END 167.957
HIERARCH ESO ISS PBLA34 START 2.361
HIERARCH ESO ISS PBLA34 END 2.738
HIERARCH ESO ISS AMBI TAU0 START 0.00216
HIERARCH ESO ISS AMBI TAU0 END 0.002279
HIERARCH ESO ISS AMBI TEMP 2.51
HIERARCH ESO ISS AMBI FWHM START 1.11
HIERARCH ESO ISS AMBI FWHM END 1.16