Exposure
ID
GRAVI.2025-11-28T06:51:32.136_1
Header ID
GRAVI.2025-11-28T06:51:32.136
Date updated
2025-11-28 07:01:04 UTC+0000
Release date
2025-11-28 06:51:32 UTC+0000
UTC Start
2025-11-28 06:51:32.136
UTC End
2025-11-28 06:54:12.136
MJD Start
61007.28578861
MJD End
61007.28764046186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0064875
Ambient temperature (°C)
14.68
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 42.2830 42.1410 152.8000 153.1000
A0-J2 126.2740 125.9100 91.9000 91.9000
A0-J6 160.2240 160.6050 32.1330 32.3070
B5-J2 111.9360 111.8860 72.7000 72.6000
B5-J6 185.3740 185.7400 20.8130 21.0670
J2-J6 145.8040 145.5040 343.6740 344.0390
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 61007.28578861
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 42.283
HIERARCH ESO ISS PBL12 END 42.141
HIERARCH ESO ISS PBLA12 START 152.8
HIERARCH ESO ISS PBLA12 END 153.1
HIERARCH ESO ISS PBL13 START 126.274
HIERARCH ESO ISS PBL13 END 125.91
HIERARCH ESO ISS PBLA13 START 91.9
HIERARCH ESO ISS PBLA13 END 91.9
HIERARCH ESO ISS PBL14 START 160.224
HIERARCH ESO ISS PBL14 END 160.605
HIERARCH ESO ISS PBLA14 START 32.133
HIERARCH ESO ISS PBLA14 END 32.307
HIERARCH ESO ISS PBL23 START 111.936
HIERARCH ESO ISS PBL23 END 111.886
HIERARCH ESO ISS PBLA23 START 72.7
HIERARCH ESO ISS PBLA23 END 72.6
HIERARCH ESO ISS PBL24 START 185.374
HIERARCH ESO ISS PBL24 END 185.74
HIERARCH ESO ISS PBLA24 START 20.813
HIERARCH ESO ISS PBLA24 END 21.067
HIERARCH ESO ISS PBL34 START 145.804
HIERARCH ESO ISS PBL34 END 145.504
HIERARCH ESO ISS PBLA34 START 343.674
HIERARCH ESO ISS PBLA34 END 344.039
HIERARCH ESO ISS AMBI TAU0 START 0.006102
HIERARCH ESO ISS AMBI TAU0 END 0.006873
HIERARCH ESO ISS AMBI TEMP 14.68
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.59