Exposure
ID
GRAVI.2025-11-28T05:40:31.955_1
Header ID
GRAVI.2025-11-28T05:40:31.955
Date updated
2025-11-28 05:52:11 UTC+0000
Release date
2025-11-28 05:40:31 UTC+0000
UTC Start
2025-11-28 05:40:31.955
UTC End
2025-11-28 05:43:11.955
MJD Start
61007.23648096
MJD End
61007.23833281185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0061135
Ambient temperature (°C)
14.77
Seeing (arcsec)
0.51
Observation
ID
71887
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
53368
Name
HD_61642
RA
114.63428
DEC
-38.78169
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 43.1600 43.3110 137.5000 137.8000
A0-J2 116.3480 116.8790 71.0000 71.6000
A0-J6 169.1210 169.0960 9.6220 10.0380
B5-J2 106.7690 107.0240 49.2000 49.8000
B5-J6 198.5800 198.5810 359.7490 0.1070
J2-J6 152.6070 152.9810 327.6160 327.8570
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 61007.23648096
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 61642
HIERARCH ESO INS SOBJ NAME HD_61642
RA 114.63428
DEC -38.78169
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 43.16
HIERARCH ESO ISS PBL12 END 43.311
HIERARCH ESO ISS PBLA12 START 137.5
HIERARCH ESO ISS PBLA12 END 137.8
HIERARCH ESO ISS PBL13 START 116.348
HIERARCH ESO ISS PBL13 END 116.879
HIERARCH ESO ISS PBLA13 START 71.0
HIERARCH ESO ISS PBLA13 END 71.6
HIERARCH ESO ISS PBL14 START 169.121
HIERARCH ESO ISS PBL14 END 169.096
HIERARCH ESO ISS PBLA14 START 9.622
HIERARCH ESO ISS PBLA14 END 10.038
HIERARCH ESO ISS PBL23 START 106.769
HIERARCH ESO ISS PBL23 END 107.024
HIERARCH ESO ISS PBLA23 START 49.2
HIERARCH ESO ISS PBLA23 END 49.8
HIERARCH ESO ISS PBL24 START 198.58
HIERARCH ESO ISS PBL24 END 198.581
HIERARCH ESO ISS PBLA24 START 359.749
HIERARCH ESO ISS PBLA24 END 0.107
HIERARCH ESO ISS PBL34 START 152.607
HIERARCH ESO ISS PBL34 END 152.981
HIERARCH ESO ISS PBLA34 START 327.616
HIERARCH ESO ISS PBLA34 END 327.857
HIERARCH ESO ISS AMBI TAU0 START 0.006201
HIERARCH ESO ISS AMBI TAU0 END 0.006026
HIERARCH ESO ISS AMBI TEMP 14.77
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.5