Exposure
ID
GRAVI.2025-09-02T00:49:16.414_1
Header ID
GRAVI.2025-09-02T00:49:16.414
Date updated
2025-09-02 01:00:59 UTC+0000
Release date
2025-09-02 00:49:16 UTC+0000
UTC Start
2025-09-02 00:49:16.414
UTC End
2025-09-02 00:51:56.414
MJD Start
60920.03421776
MJD End
60920.03606961186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003467
Ambient temperature (°C)
10.61
Seeing (arcsec)
0.5349999999999999
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 89.0750 88.8960 118.8000 119.1000
A0-J2 127.8770 127.6370 95.4000 95.6000
A0-K0 127.4320 127.2820 73.6210 73.8250
G1-J2 58.1690 58.1380 57.9000 58.1000
G1-K0 90.3860 90.4100 29.2750 29.5260
J2-K0 48.1650 48.1560 353.9730 354.2980
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 60920.03421776
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 89.075
HIERARCH ESO ISS PBL12 END 88.896
HIERARCH ESO ISS PBLA12 START 118.8
HIERARCH ESO ISS PBLA12 END 119.1
HIERARCH ESO ISS PBL13 START 127.877
HIERARCH ESO ISS PBL13 END 127.637
HIERARCH ESO ISS PBLA13 START 95.4
HIERARCH ESO ISS PBLA13 END 95.6
HIERARCH ESO ISS PBL14 START 127.432
HIERARCH ESO ISS PBL14 END 127.282
HIERARCH ESO ISS PBLA14 START 73.621
HIERARCH ESO ISS PBLA14 END 73.825
HIERARCH ESO ISS PBL23 START 58.169
HIERARCH ESO ISS PBL23 END 58.138
HIERARCH ESO ISS PBLA23 START 57.9
HIERARCH ESO ISS PBLA23 END 58.1
HIERARCH ESO ISS PBL24 START 90.386
HIERARCH ESO ISS PBL24 END 90.41
HIERARCH ESO ISS PBLA24 START 29.275
HIERARCH ESO ISS PBLA24 END 29.526
HIERARCH ESO ISS PBL34 START 48.165
HIERARCH ESO ISS PBL34 END 48.156
HIERARCH ESO ISS PBLA34 START 353.973
HIERARCH ESO ISS PBLA34 END 354.298
HIERARCH ESO ISS AMBI TAU0 START 0.003394
HIERARCH ESO ISS AMBI TAU0 END 0.00354
HIERARCH ESO ISS AMBI TEMP 10.61
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.59