Exposure
ID
GRAVI.2025-03-07T00:12:22.699_1
Header ID
GRAVI.2025-03-07T00:12:22.699
Date updated
2025-03-07 00:25:56 UTC+0000
Release date
2025-03-07 00:12:22 UTC+0000
UTC Start
2025-03-07 00:12:22.699
UTC End
2025-03-07 00:15:34.699
MJD Start
60741.00859605
MJD End
60741.010818272225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0066035
Ambient temperature (°C)
13.74
Seeing (arcsec)
0.815
Observation
ID
64973
Category
calibrator
Program ID
114.27NF.001
Program Title
UNVELING 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
Target
ID
48292
Name
HD_50235
RA
102.715458
DEC
-34.36731
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 24.8770 24.9150 139.7000 140.1000
A0-D0 32.0000 32.0040 68.3000 68.9000
A0-C1 22.3910 22.4290 112.9090 113.3910
B2-D0 33.6870 33.6640 23.9000 24.3000
B2-C1 11.2210 11.2130 23.8690 24.3060
D0-C1 22.4650 22.4500 203.9330 204.3700
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.27NF.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60741.00859605
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 50235
HIERARCH ESO INS SOBJ NAME HD_50235
RA 102.715458
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 24.877
HIERARCH ESO ISS PBL12 END 24.915
HIERARCH ESO ISS PBLA12 START 139.7
HIERARCH ESO ISS PBLA12 END 140.1
HIERARCH ESO ISS PBL13 START 32.0
HIERARCH ESO ISS PBL13 END 32.004
HIERARCH ESO ISS PBLA13 START 68.3
HIERARCH ESO ISS PBLA13 END 68.9
HIERARCH ESO ISS PBL14 START 22.391
HIERARCH ESO ISS PBL14 END 22.429
HIERARCH ESO ISS PBLA14 START 112.909
HIERARCH ESO ISS PBLA14 END 113.391
HIERARCH ESO ISS PBL23 START 33.687
HIERARCH ESO ISS PBL23 END 33.664
HIERARCH ESO ISS PBLA23 START 23.9
HIERARCH ESO ISS PBLA23 END 24.3
HIERARCH ESO ISS PBL24 START 11.221
HIERARCH ESO ISS PBL24 END 11.213
HIERARCH ESO ISS PBLA24 START 23.869
HIERARCH ESO ISS PBLA24 END 24.306
HIERARCH ESO ISS PBL34 START 22.465
HIERARCH ESO ISS PBL34 END 22.45
HIERARCH ESO ISS PBLA34 START 203.933
HIERARCH ESO ISS PBLA34 END 204.37
HIERARCH ESO ISS AMBI TAU0 START 0.006939
HIERARCH ESO ISS AMBI TAU0 END 0.006268
HIERARCH ESO ISS AMBI TEMP 13.74
HIERARCH ESO ISS AMBI FWHM START 0.84
HIERARCH ESO ISS AMBI FWHM END 0.79