Exposure
ID
GRAVI.2025-11-29T04:47:49.039_1
Header ID
GRAVI.2025-11-29T04:47:49.039
Date updated
2025-11-29 04:56:13 UTC+0000
Release date
2025-11-29 04:47:49 UTC+0000
UTC Start
2025-11-29 04:47:49.039
UTC End
2025-11-29 04:50:29.039
MJD Start
61008.19987314
MJD End
61008.20172499186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.011197
Ambient temperature (°C)
15.29
Seeing (arcsec)
0.575
Observation
ID
71893
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
48242
Name
HD_57478
RA
110.241635
DEC
-14.36049
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 47.3500 47.4350 141.9000 142.0000
A0-J2 100.7540 101.7470 81.5000 81.8000
A0-J6 159.0410 159.1130 5.4440 5.8920
B5-J2 87.6290 88.3270 53.5000 54.0000
B5-J6 196.1040 196.0630 355.8740 356.2330
J2-J6 166.5550 166.6890 329.4910 329.5960
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 61008.19987314
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 57478
HIERARCH ESO INS SOBJ NAME HD_57478
RA 110.241635
DEC -14.36049
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 47.35
HIERARCH ESO ISS PBL12 END 47.435
HIERARCH ESO ISS PBLA12 START 141.9
HIERARCH ESO ISS PBLA12 END 142.0
HIERARCH ESO ISS PBL13 START 100.754
HIERARCH ESO ISS PBL13 END 101.747
HIERARCH ESO ISS PBLA13 START 81.5
HIERARCH ESO ISS PBLA13 END 81.8
HIERARCH ESO ISS PBL14 START 159.041
HIERARCH ESO ISS PBL14 END 159.113
HIERARCH ESO ISS PBLA14 START 5.444
HIERARCH ESO ISS PBLA14 END 5.892
HIERARCH ESO ISS PBL23 START 87.629
HIERARCH ESO ISS PBL23 END 88.327
HIERARCH ESO ISS PBLA23 START 53.5
HIERARCH ESO ISS PBLA23 END 54.0
HIERARCH ESO ISS PBL24 START 196.104
HIERARCH ESO ISS PBL24 END 196.063
HIERARCH ESO ISS PBLA24 START 355.874
HIERARCH ESO ISS PBLA24 END 356.233
HIERARCH ESO ISS PBL34 START 166.555
HIERARCH ESO ISS PBL34 END 166.689
HIERARCH ESO ISS PBLA34 START 329.491
HIERARCH ESO ISS PBLA34 END 329.596
HIERARCH ESO ISS AMBI TAU0 START 0.011129
HIERARCH ESO ISS AMBI TAU0 END 0.011265
HIERARCH ESO ISS AMBI TEMP 15.29
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.55