Exposure
ID
GRAVI.2025-04-28T08:28:38.674_1
Header ID
GRAVI.2025-04-28T08:28:38.674
Date updated
2025-04-28 08:40:37 UTC+0000
Release date
2025-04-28 08:28:38 UTC+0000
UTC Start
2025-04-28 08:28:38.674
UTC End
2025-04-28 08:31:18.674
MJD Start
60793.35322539
MJD End
60793.35507724185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004536
Ambient temperature (°C)
12.38
Seeing (arcsec)
0.295
Observation
ID
67033
Category
calibrator
Program ID
115.27VK.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
Target
ID
49841
Name
HD_168000
RA
274.598179
DEC
-17.53439
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 90.4680 90.4320 115.3000 115.6000
A0-J2 129.2070 129.2310 92.3000 92.5000
A0-K0 127.7040 127.7930 70.6310 70.8830
G1-J2 57.9770 58.0280 54.7000 55.0000
G1-K0 89.7980 89.8560 25.5240 25.8380
J2-K0 48.3140 48.3020 349.7130 350.0330
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60793.35322539
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168000
HIERARCH ESO INS SOBJ NAME HD_168000
RA 274.598179
DEC -17.53439
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 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 90.468
HIERARCH ESO ISS PBL12 END 90.432
HIERARCH ESO ISS PBLA12 START 115.3
HIERARCH ESO ISS PBLA12 END 115.6
HIERARCH ESO ISS PBL13 START 129.207
HIERARCH ESO ISS PBL13 END 129.231
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.5
HIERARCH ESO ISS PBL14 START 127.704
HIERARCH ESO ISS PBL14 END 127.793
HIERARCH ESO ISS PBLA14 START 70.631
HIERARCH ESO ISS PBLA14 END 70.883
HIERARCH ESO ISS PBL23 START 57.977
HIERARCH ESO ISS PBL23 END 58.028
HIERARCH ESO ISS PBLA23 START 54.7
HIERARCH ESO ISS PBLA23 END 55.0
HIERARCH ESO ISS PBL24 START 89.798
HIERARCH ESO ISS PBL24 END 89.856
HIERARCH ESO ISS PBLA24 START 25.524
HIERARCH ESO ISS PBLA24 END 25.838
HIERARCH ESO ISS PBL34 START 48.314
HIERARCH ESO ISS PBL34 END 48.302
HIERARCH ESO ISS PBLA34 START 349.713
HIERARCH ESO ISS PBLA34 END 350.033
HIERARCH ESO ISS AMBI TAU0 START 0.004567
HIERARCH ESO ISS AMBI TAU0 END 0.004505
HIERARCH ESO ISS AMBI TEMP 12.38
HIERARCH ESO ISS AMBI FWHM START 0.3
HIERARCH ESO ISS AMBI FWHM END 0.29