Exposure
ID
GRAVI.2025-11-28T06:54:50.144_1
Header ID
GRAVI.2025-11-28T06:54:50.144
Date updated
2025-11-28 07:05:57 UTC+0000
Release date
2025-11-28 06:54:50 UTC+0000
UTC Start
2025-11-28 06:54:50.144
UTC End
2025-11-28 06:57:30.144
MJD Start
61007.28808037
MJD End
61007.28993222186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.007422999999999999
Ambient temperature (°C)
14.64
Seeing (arcsec)
0.59
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 42.1240 41.9820 153.1000 153.5000
A0-J2 125.8650 125.4750 91.9000 91.9000
A0-J6 160.6490 161.0250 32.3270 32.4960
B5-J2 111.8780 111.8080 72.6000 72.6000
B5-J6 185.7840 186.1520 21.0970 21.3480
J2-J6 145.4690 145.1730 344.0830 344.4550
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 61007.28808037
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 42.124
HIERARCH ESO ISS PBL12 END 41.982
HIERARCH ESO ISS PBLA12 START 153.1
HIERARCH ESO ISS PBLA12 END 153.5
HIERARCH ESO ISS PBL13 START 125.865
HIERARCH ESO ISS PBL13 END 125.475
HIERARCH ESO ISS PBLA13 START 91.9
HIERARCH ESO ISS PBLA13 END 91.9
HIERARCH ESO ISS PBL14 START 160.649
HIERARCH ESO ISS PBL14 END 161.025
HIERARCH ESO ISS PBLA14 START 32.327
HIERARCH ESO ISS PBLA14 END 32.496
HIERARCH ESO ISS PBL23 START 111.878
HIERARCH ESO ISS PBL23 END 111.808
HIERARCH ESO ISS PBLA23 START 72.6
HIERARCH ESO ISS PBLA23 END 72.6
HIERARCH ESO ISS PBL24 START 185.784
HIERARCH ESO ISS PBL24 END 186.152
HIERARCH ESO ISS PBLA24 START 21.097
HIERARCH ESO ISS PBLA24 END 21.348
HIERARCH ESO ISS PBL34 START 145.469
HIERARCH ESO ISS PBL34 END 145.173
HIERARCH ESO ISS PBLA34 START 344.083
HIERARCH ESO ISS PBLA34 END 344.455
HIERARCH ESO ISS AMBI TAU0 START 0.006873
HIERARCH ESO ISS AMBI TAU0 END 0.007973
HIERARCH ESO ISS AMBI TEMP 14.64
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.59