Exposure
ID
GRAVI.2025-11-28T04:35:34.790_1
Header ID
GRAVI.2025-11-28T04:35:34.790
Date updated
2025-11-28 04:46:18 UTC+0000
Release date
2025-11-28 04:35:34 UTC+0000
UTC Start
2025-11-28 04:35:34.790
UTC End
2025-11-28 04:38:14.790
MJD Start
61007.19137488
MJD End
61007.193226731855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004163
Ambient temperature (°C)
15.16
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 47.7220 47.6480 143.6000 143.7000
A0-J2 120.0940 120.6980 94.1000 94.0000
A0-J6 140.4090 140.7930 18.0930 18.5250
B5-J2 96.2570 96.9500 71.9000 72.0000
B5-J6 172.5610 172.6850 5.0840 5.4890
J2-J6 161.0990 160.8070 331.7780 331.9300
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 61007.19137488
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 47.722
HIERARCH ESO ISS PBL12 END 47.648
HIERARCH ESO ISS PBLA12 START 143.6
HIERARCH ESO ISS PBLA12 END 143.7
HIERARCH ESO ISS PBL13 START 120.094
HIERARCH ESO ISS PBL13 END 120.698
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.0
HIERARCH ESO ISS PBL14 START 140.409
HIERARCH ESO ISS PBL14 END 140.793
HIERARCH ESO ISS PBLA14 START 18.093
HIERARCH ESO ISS PBLA14 END 18.525
HIERARCH ESO ISS PBL23 START 96.257
HIERARCH ESO ISS PBL23 END 96.95
HIERARCH ESO ISS PBLA23 START 71.9
HIERARCH ESO ISS PBLA23 END 72.0
HIERARCH ESO ISS PBL24 START 172.561
HIERARCH ESO ISS PBL24 END 172.685
HIERARCH ESO ISS PBLA24 START 5.084
HIERARCH ESO ISS PBLA24 END 5.489
HIERARCH ESO ISS PBL34 START 161.099
HIERARCH ESO ISS PBL34 END 160.807
HIERARCH ESO ISS PBLA34 START 331.778
HIERARCH ESO ISS PBLA34 END 331.93
HIERARCH ESO ISS AMBI TAU0 START 0.003723
HIERARCH ESO ISS AMBI TAU0 END 0.004603
HIERARCH ESO ISS AMBI TEMP 15.16
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.61