Exposure
ID
GRAVI.2025-11-28T06:28:35.077_1
Header ID
GRAVI.2025-11-28T06:28:35.077
Date updated
2025-11-28 06:40:47 UTC+0000
Release date
2025-11-28 06:28:35 UTC+0000
UTC Start
2025-11-28 06:28:35.077
UTC End
2025-11-28 06:31:15.077
MJD Start
61007.26985043
MJD End
61007.271702281854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0051815
Ambient temperature (°C)
14.72
Seeing (arcsec)
0.585
Observation
ID
71889
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
53370
Name
HD_76304
RA
133.459982
DEC
-40.44753
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 41.1050 41.2850 134.7000 134.9000
A0-J2 111.9100 112.4800 64.8000 65.4000
A0-J6 168.8560 168.8380 5.7710 6.1950
B5-J2 105.1260 105.3840 43.2000 43.9000
B5-J6 197.2820 197.3070 356.4420 356.8010
J2-J6 146.8890 147.3440 324.9990 325.2250
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 61007.26985043
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 76304
HIERARCH ESO INS SOBJ NAME HD_76304
RA 133.459982
DEC -40.44753
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 41.105
HIERARCH ESO ISS PBL12 END 41.285
HIERARCH ESO ISS PBLA12 START 134.7
HIERARCH ESO ISS PBLA12 END 134.9
HIERARCH ESO ISS PBL13 START 111.91
HIERARCH ESO ISS PBL13 END 112.48
HIERARCH ESO ISS PBLA13 START 64.8
HIERARCH ESO ISS PBLA13 END 65.4
HIERARCH ESO ISS PBL14 START 168.856
HIERARCH ESO ISS PBL14 END 168.838
HIERARCH ESO ISS PBLA14 START 5.771
HIERARCH ESO ISS PBLA14 END 6.195
HIERARCH ESO ISS PBL23 START 105.126
HIERARCH ESO ISS PBL23 END 105.384
HIERARCH ESO ISS PBLA23 START 43.2
HIERARCH ESO ISS PBLA23 END 43.9
HIERARCH ESO ISS PBL24 START 197.282
HIERARCH ESO ISS PBL24 END 197.307
HIERARCH ESO ISS PBLA24 START 356.442
HIERARCH ESO ISS PBLA24 END 356.801
HIERARCH ESO ISS PBL34 START 146.889
HIERARCH ESO ISS PBL34 END 147.344
HIERARCH ESO ISS PBLA34 START 324.999
HIERARCH ESO ISS PBLA34 END 325.225
HIERARCH ESO ISS AMBI TAU0 START 0.0056
HIERARCH ESO ISS AMBI TAU0 END 0.004763
HIERARCH ESO ISS AMBI TEMP 14.72
HIERARCH ESO ISS AMBI FWHM START 0.58
HIERARCH ESO ISS AMBI FWHM END 0.59