Exposure
ID
GRAVI.2025-11-28T04:22:22.757_1
Header ID
GRAVI.2025-11-28T04:22:22.757
Date updated
2025-11-28 04:31:02 UTC+0000
Release date
2025-11-28 04:22:22 UTC+0000
UTC Start
2025-11-28 04:22:22.757
UTC End
2025-11-28 04:25:02.757
MJD Start
61007.18220783
MJD End
61007.18405968186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005403
Ambient temperature (°C)
15.12
Seeing (arcsec)
0.64
Observation
ID
71884
Category
calibrator
Program ID
116.28P0.001
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 / ERCOLINO / JANIK
Target
ID
53365
Name
HD_39685
RA
88.564905
DEC
3.22534
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 48.0190 47.9580 143.3000 143.4000
A0-J2 117.1530 117.8440 94.3000 94.3000
A0-J6 138.7730 139.1260 16.0960 16.5510
B5-J2 92.9820 93.7380 71.4000 71.5000
B5-J6 172.1190 172.2020 3.2600 3.6690
J2-J6 162.3470 162.0770 331.1500 331.2830
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28P0.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 61007.18220783
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 39685
HIERARCH ESO INS SOBJ NAME HD_39685
RA 88.564905
DEC 3.22534
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 48.019
HIERARCH ESO ISS PBL12 END 47.958
HIERARCH ESO ISS PBLA12 START 143.3
HIERARCH ESO ISS PBLA12 END 143.4
HIERARCH ESO ISS PBL13 START 117.153
HIERARCH ESO ISS PBL13 END 117.844
HIERARCH ESO ISS PBLA13 START 94.3
HIERARCH ESO ISS PBLA13 END 94.3
HIERARCH ESO ISS PBL14 START 138.773
HIERARCH ESO ISS PBL14 END 139.126
HIERARCH ESO ISS PBLA14 START 16.096
HIERARCH ESO ISS PBLA14 END 16.551
HIERARCH ESO ISS PBL23 START 92.982
HIERARCH ESO ISS PBL23 END 93.738
HIERARCH ESO ISS PBLA23 START 71.4
HIERARCH ESO ISS PBLA23 END 71.5
HIERARCH ESO ISS PBL24 START 172.119
HIERARCH ESO ISS PBL24 END 172.202
HIERARCH ESO ISS PBLA24 START 3.26
HIERARCH ESO ISS PBLA24 END 3.669
HIERARCH ESO ISS PBL34 START 162.347
HIERARCH ESO ISS PBL34 END 162.077
HIERARCH ESO ISS PBLA34 START 331.15
HIERARCH ESO ISS PBLA34 END 331.283
HIERARCH ESO ISS AMBI TAU0 START 0.004162
HIERARCH ESO ISS AMBI TAU0 END 0.006644
HIERARCH ESO ISS AMBI TEMP 15.12
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.6