Exposure
ID
GRAVI.2025-11-25T03:39:49.926_1
Header ID
GRAVI.2025-11-25T03:39:49.926
Date updated
2025-11-25 03:50:56 UTC+0000
Release date
2025-11-25 03:39:49 UTC+0000
UTC Start
2025-11-25 03:39:49.926
UTC End
2025-11-25 03:43:01.926
MJD Start
61004.15266118
MJD End
61004.154883402225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.004857
Ambient temperature (°C)
13.3
Seeing (arcsec)
0.935
Observation
ID
71845
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
53286
Name
HD_50235
RA
102.715461
DEC
-34.36731
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 39.2120 39.4870 134.3000 134.5000
A0-D0 27.1330 27.2540 31.7000 32.6000
A0-G1 61.1890 62.0780 88.1960 88.7450
B5-D0 52.3340 52.3750 344.7000 345.1000
B5-G1 44.2380 44.6180 48.4580 49.4130
D0-G1 51.4450 52.0480 114.2860 114.5090
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 61004.15266118
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 50235
HIERARCH ESO INS SOBJ NAME HD_50235
RA 102.715461
DEC -34.36731
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 39.212
HIERARCH ESO ISS PBL12 END 39.487
HIERARCH ESO ISS PBLA12 START 134.3
HIERARCH ESO ISS PBLA12 END 134.5
HIERARCH ESO ISS PBL13 START 27.133
HIERARCH ESO ISS PBL13 END 27.254
HIERARCH ESO ISS PBLA13 START 31.7
HIERARCH ESO ISS PBLA13 END 32.6
HIERARCH ESO ISS PBL14 START 61.189
HIERARCH ESO ISS PBL14 END 62.078
HIERARCH ESO ISS PBLA14 START 88.196
HIERARCH ESO ISS PBLA14 END 88.745
HIERARCH ESO ISS PBL23 START 52.334
HIERARCH ESO ISS PBL23 END 52.375
HIERARCH ESO ISS PBLA23 START 344.7
HIERARCH ESO ISS PBLA23 END 345.1
HIERARCH ESO ISS PBL24 START 44.238
HIERARCH ESO ISS PBL24 END 44.618
HIERARCH ESO ISS PBLA24 START 48.458
HIERARCH ESO ISS PBLA24 END 49.413
HIERARCH ESO ISS PBL34 START 51.445
HIERARCH ESO ISS PBL34 END 52.048
HIERARCH ESO ISS PBLA34 START 114.286
HIERARCH ESO ISS PBLA34 END 114.509
HIERARCH ESO ISS AMBI TAU0 START 0.005041
HIERARCH ESO ISS AMBI TAU0 END 0.004673
HIERARCH ESO ISS AMBI TEMP 13.3
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 1.08