Exposure
ID
GRAVI.2025-11-28T05:00:37.853_1
Header ID
GRAVI.2025-11-28T05:00:37.853
Date updated
2025-11-28 05:10:59 UTC+0000
Release date
2026-11-28 05:10:59 UTC+0000
UTC Start
2025-11-28 05:00:37.853
UTC End
2025-11-28 05:03:17.853
MJD Start
61007.20877145
MJD End
61007.21062330186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004023
Ambient temperature (°C)
15.01
Seeing (arcsec)
0.66
Observation
ID
71885
Category
science
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
53366
Name
HD_289261
RA
103.362768
DEC
1.87316
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 48.4680 48.4330 143.1000 143.2000
A0-J2 111.6280 112.4560 94.0000 94.0000
A0-J6 138.8740 139.1520 12.5390 13.0200
B5-J2 87.8790 88.7110 69.4000 69.6000
B5-J6 174.3360 174.3490 0.3510 0.7590
J2-J6 164.8170 164.6090 330.4880 330.5930
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28P0.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 61007.20877145
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 289261
HIERARCH ESO INS SOBJ NAME HD_289261
RA 103.362768
DEC 1.87316
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 48.468
HIERARCH ESO ISS PBL12 END 48.433
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.2
HIERARCH ESO ISS PBL13 START 111.628
HIERARCH ESO ISS PBL13 END 112.456
HIERARCH ESO ISS PBLA13 START 94.0
HIERARCH ESO ISS PBLA13 END 94.0
HIERARCH ESO ISS PBL14 START 138.874
HIERARCH ESO ISS PBL14 END 139.152
HIERARCH ESO ISS PBLA14 START 12.539
HIERARCH ESO ISS PBLA14 END 13.02
HIERARCH ESO ISS PBL23 START 87.879
HIERARCH ESO ISS PBL23 END 88.711
HIERARCH ESO ISS PBLA23 START 69.4
HIERARCH ESO ISS PBLA23 END 69.6
HIERARCH ESO ISS PBL24 START 174.336
HIERARCH ESO ISS PBL24 END 174.349
HIERARCH ESO ISS PBLA24 START 0.351
HIERARCH ESO ISS PBLA24 END 0.759
HIERARCH ESO ISS PBL34 START 164.817
HIERARCH ESO ISS PBL34 END 164.609
HIERARCH ESO ISS PBLA34 START 330.488
HIERARCH ESO ISS PBLA34 END 330.593
HIERARCH ESO ISS AMBI TAU0 START 0.00371
HIERARCH ESO ISS AMBI TAU0 END 0.004336
HIERARCH ESO ISS AMBI TEMP 15.01
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.55