Exposure
ID
GRAVI.2025-02-25T03:46:47.482_1
Header ID
GRAVI.2025-02-25T03:46:47.482
Date updated
2025-02-26 12:50:48 UTC+0000
Release date
2025-02-25 03:46:47 UTC+0000
UTC Start
2025-02-25 03:46:47.482
UTC End
2025-02-25 03:49:59.482
MJD Start
60731.15749401
MJD End
60731.15971623223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0048225
Ambient temperature (°C)
15.29
Seeing (arcsec)
1.545
Observation
ID
64838
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
48283
Name
HD_55526
RA
107.694299
DEC
-48.93099
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 89.7840 89.7030 139.3000 140.1000
A0-J2 121.4870 121.0760 119.3000 120.1000
A0-K0 111.3310 110.6610 97.6890 98.4370
G1-J2 48.2150 47.8700 79.7000 80.3000
G1-K0 74.2610 73.8740 44.2490 44.6440
J2-K0 44.7650 44.7450 5.6200 6.0610
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 60731.15749401
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 55526
HIERARCH ESO INS SOBJ NAME HD_55526
RA 107.694299
DEC -48.93099
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 89.784
HIERARCH ESO ISS PBL12 END 89.703
HIERARCH ESO ISS PBLA12 START 139.3
HIERARCH ESO ISS PBLA12 END 140.1
HIERARCH ESO ISS PBL13 START 121.487
HIERARCH ESO ISS PBL13 END 121.076
HIERARCH ESO ISS PBLA13 START 119.3
HIERARCH ESO ISS PBLA13 END 120.1
HIERARCH ESO ISS PBL14 START 111.331
HIERARCH ESO ISS PBL14 END 110.661
HIERARCH ESO ISS PBLA14 START 97.689
HIERARCH ESO ISS PBLA14 END 98.437
HIERARCH ESO ISS PBL23 START 48.215
HIERARCH ESO ISS PBL23 END 47.87
HIERARCH ESO ISS PBLA23 START 79.7
HIERARCH ESO ISS PBLA23 END 80.3
HIERARCH ESO ISS PBL24 START 74.261
HIERARCH ESO ISS PBL24 END 73.874
HIERARCH ESO ISS PBLA24 START 44.249
HIERARCH ESO ISS PBLA24 END 44.644
HIERARCH ESO ISS PBL34 START 44.765
HIERARCH ESO ISS PBL34 END 44.745
HIERARCH ESO ISS PBLA34 START 5.62
HIERARCH ESO ISS PBLA34 END 6.061
HIERARCH ESO ISS AMBI TAU0 START 0.00504
HIERARCH ESO ISS AMBI TAU0 END 0.004605
HIERARCH ESO ISS AMBI TEMP 15.29
HIERARCH ESO ISS AMBI FWHM START 1.53
HIERARCH ESO ISS AMBI FWHM END 1.56