Exposure
ID
GRAVI.2025-11-25T05:10:20.156_1
Header ID
GRAVI.2025-11-25T05:10:20.156
Date updated
2025-11-25 05:26:00 UTC+0000
Release date
2025-11-25 05:10:20 UTC+0000
UTC Start
2025-11-25 05:10:20.156
UTC End
2025-11-25 05:13:32.156
MJD Start
61004.21551107
MJD End
61004.21773329222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0060285
Ambient temperature (°C)
12.3
Seeing (arcsec)
0.475
Observation
ID
71855
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
53338
Name
HD_55526
RA
107.694299
DEC
-48.93096
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 39.1450 39.3720 131.7000 132.1000
A0-D0 31.2480 31.2980 44.3000 45.1000
A0-G1 75.4060 75.9330 88.0570 88.7680
B5-D0 48.9460 48.9800 351.3000 351.7000
B5-G1 54.2620 54.4520 58.2110 59.0320
D0-G1 57.0740 57.5000 110.3010 110.8400
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 61004.21551107
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 55526
HIERARCH ESO INS SOBJ NAME HD_55526
RA 107.694299
DEC -48.93096
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 39.145
HIERARCH ESO ISS PBL12 END 39.372
HIERARCH ESO ISS PBLA12 START 131.7
HIERARCH ESO ISS PBLA12 END 132.1
HIERARCH ESO ISS PBL13 START 31.248
HIERARCH ESO ISS PBL13 END 31.298
HIERARCH ESO ISS PBLA13 START 44.3
HIERARCH ESO ISS PBLA13 END 45.1
HIERARCH ESO ISS PBL14 START 75.406
HIERARCH ESO ISS PBL14 END 75.933
HIERARCH ESO ISS PBLA14 START 88.057
HIERARCH ESO ISS PBLA14 END 88.768
HIERARCH ESO ISS PBL23 START 48.946
HIERARCH ESO ISS PBL23 END 48.98
HIERARCH ESO ISS PBLA23 START 351.3
HIERARCH ESO ISS PBLA23 END 351.7
HIERARCH ESO ISS PBL24 START 54.262
HIERARCH ESO ISS PBL24 END 54.452
HIERARCH ESO ISS PBLA24 START 58.211
HIERARCH ESO ISS PBLA24 END 59.032
HIERARCH ESO ISS PBL34 START 57.074
HIERARCH ESO ISS PBL34 END 57.5
HIERARCH ESO ISS PBLA34 START 110.301
HIERARCH ESO ISS PBLA34 END 110.84
HIERARCH ESO ISS AMBI TAU0 START 0.006121
HIERARCH ESO ISS AMBI TAU0 END 0.005936
HIERARCH ESO ISS AMBI TEMP 12.3
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.49