Exposure
ID
GRAVI.2025-11-28T04:32:19.781_1
Header ID
GRAVI.2025-11-28T04:32:19.781
Date updated
2025-11-28 04:41:26 UTC+0000
Release date
2025-11-28 04:32:19 UTC+0000
UTC Start
2025-11-28 04:32:19.781
UTC End
2025-11-28 04:34:59.781
MJD Start
61007.18911784
MJD End
61007.19096969185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0047805
Ambient temperature (°C)
15.12
Seeing (arcsec)
0.6599999999999999
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 47.8000 47.7290 143.5000 143.6000
A0-J2 119.4060 120.0320 94.1000 94.1000
A0-J6 139.9930 140.3700 17.6100 18.0480
B5-J2 95.4760 96.1850 71.8000 71.9000
B5-J6 172.4340 172.5480 4.6370 5.0430
J2-J6 161.4150 161.1280 331.6150 331.7620
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 61007.18911784
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 47.8
HIERARCH ESO ISS PBL12 END 47.729
HIERARCH ESO ISS PBLA12 START 143.5
HIERARCH ESO ISS PBLA12 END 143.6
HIERARCH ESO ISS PBL13 START 119.406
HIERARCH ESO ISS PBL13 END 120.032
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.1
HIERARCH ESO ISS PBL14 START 139.993
HIERARCH ESO ISS PBL14 END 140.37
HIERARCH ESO ISS PBLA14 START 17.61
HIERARCH ESO ISS PBLA14 END 18.048
HIERARCH ESO ISS PBL23 START 95.476
HIERARCH ESO ISS PBL23 END 96.185
HIERARCH ESO ISS PBLA23 START 71.8
HIERARCH ESO ISS PBLA23 END 71.9
HIERARCH ESO ISS PBL24 START 172.434
HIERARCH ESO ISS PBL24 END 172.548
HIERARCH ESO ISS PBLA24 START 4.637
HIERARCH ESO ISS PBLA24 END 5.043
HIERARCH ESO ISS PBL34 START 161.415
HIERARCH ESO ISS PBL34 END 161.128
HIERARCH ESO ISS PBLA34 START 331.615
HIERARCH ESO ISS PBLA34 END 331.762
HIERARCH ESO ISS AMBI TAU0 START 0.005838
HIERARCH ESO ISS AMBI TAU0 END 0.003723
HIERARCH ESO ISS AMBI TEMP 15.12
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.71