Exposure
ID
GRAVI.2025-11-25T05:02:05.135_1
Header ID
GRAVI.2025-11-25T05:02:05.135
Date updated
2025-11-25 05:15:53 UTC+0000
Release date
2025-11-25 05:02:05 UTC+0000
UTC Start
2025-11-25 05:02:05.135
UTC End
2025-11-25 05:05:17.135
MJD Start
61004.20978166
MJD End
61004.212003882225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.005108
Ambient temperature (°C)
12.46
Seeing (arcsec)
0.52
Observation
ID
71855
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
53338
Name
HD_55526
RA
107.694299
DEC
-48.93096
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B5 D0 G1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 38.6240 38.8590 130.8000 131.2000
A0-D0 31.1310 31.1830 42.5000 43.3000
A0-G1 74.2000 74.7440 86.4530 87.1730
B5-D0 48.8620 48.9000 350.3000 350.8000
B5-G1 53.8300 54.0250 56.3570 57.1920
D0-G1 56.0980 56.5400 109.0950 109.6360
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 61004.20978166
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 55526
HIERARCH ESO INS SOBJ NAME HD_55526
RA 107.694299
DEC -48.93096
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 D0
HIERARCH ESO ISS CONF STATION4 G1
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 38.624
HIERARCH ESO ISS PBL12 END 38.859
HIERARCH ESO ISS PBLA12 START 130.8
HIERARCH ESO ISS PBLA12 END 131.2
HIERARCH ESO ISS PBL13 START 31.131
HIERARCH ESO ISS PBL13 END 31.183
HIERARCH ESO ISS PBLA13 START 42.5
HIERARCH ESO ISS PBLA13 END 43.3
HIERARCH ESO ISS PBL14 START 74.2
HIERARCH ESO ISS PBL14 END 74.744
HIERARCH ESO ISS PBLA14 START 86.453
HIERARCH ESO ISS PBLA14 END 87.173
HIERARCH ESO ISS PBL23 START 48.862
HIERARCH ESO ISS PBL23 END 48.9
HIERARCH ESO ISS PBLA23 START 350.3
HIERARCH ESO ISS PBLA23 END 350.8
HIERARCH ESO ISS PBL24 START 53.83
HIERARCH ESO ISS PBL24 END 54.025
HIERARCH ESO ISS PBLA24 START 56.357
HIERARCH ESO ISS PBLA24 END 57.192
HIERARCH ESO ISS PBL34 START 56.098
HIERARCH ESO ISS PBL34 END 56.54
HIERARCH ESO ISS PBLA34 START 109.095
HIERARCH ESO ISS PBLA34 END 109.636
HIERARCH ESO ISS AMBI TAU0 START 0.005911
HIERARCH ESO ISS AMBI TAU0 END 0.004305
HIERARCH ESO ISS AMBI TEMP 12.46
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.59