Exposure
ID
GRAVI.2025-11-25T04:53:53.114_1
Header ID
GRAVI.2025-11-25T04:53:53.114
Date updated
2025-11-25 05:06:05 UTC+0000
Release date
2025-11-25 04:53:53 UTC+0000
UTC Start
2025-11-25 04:53:53.114
UTC End
2025-11-25 04:57:05.114
MJD Start
61004.20408697
MJD End
61004.206309192225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.005204
Ambient temperature (°C)
12.71
Seeing (arcsec)
0.485
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 38.0880 38.3320 129.9000 130.3000
A0-D0 31.0110 31.0660 40.7000 41.6000
A0-G1 72.9660 73.5290 84.8330 85.5700
B5-D0 48.7700 48.8130 349.4000 349.8000
B5-G1 53.3900 53.5900 54.4850 55.3360
D0-G1 55.0940 55.5520 107.8940 108.4380
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 61004.20408697
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 38.088
HIERARCH ESO ISS PBL12 END 38.332
HIERARCH ESO ISS PBLA12 START 129.9
HIERARCH ESO ISS PBLA12 END 130.3
HIERARCH ESO ISS PBL13 START 31.011
HIERARCH ESO ISS PBL13 END 31.066
HIERARCH ESO ISS PBLA13 START 40.7
HIERARCH ESO ISS PBLA13 END 41.6
HIERARCH ESO ISS PBL14 START 72.966
HIERARCH ESO ISS PBL14 END 73.529
HIERARCH ESO ISS PBLA14 START 84.833
HIERARCH ESO ISS PBLA14 END 85.57
HIERARCH ESO ISS PBL23 START 48.77
HIERARCH ESO ISS PBL23 END 48.813
HIERARCH ESO ISS PBLA23 START 349.4
HIERARCH ESO ISS PBLA23 END 349.8
HIERARCH ESO ISS PBL24 START 53.39
HIERARCH ESO ISS PBL24 END 53.59
HIERARCH ESO ISS PBLA24 START 54.485
HIERARCH ESO ISS PBLA24 END 55.336
HIERARCH ESO ISS PBL34 START 55.094
HIERARCH ESO ISS PBL34 END 55.552
HIERARCH ESO ISS PBLA34 START 107.894
HIERARCH ESO ISS PBLA34 END 108.438
HIERARCH ESO ISS AMBI TAU0 START 0.005206
HIERARCH ESO ISS AMBI TAU0 END 0.005202
HIERARCH ESO ISS AMBI TEMP 12.71
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.45