Exposure
ID
GRAVI.2025-05-20T04:16:05.129_1
Header ID
GRAVI.2025-05-20T04:16:05.129
Date updated
2025-05-20 04:26:00 UTC+0000
Release date
2025-05-20 04:16:05 UTC+0000
UTC Start
2025-05-20 04:16:05.129
UTC End
2025-05-20 04:19:17.129
MJD Start
60815.17783714
MJD End
60815.180059362225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0049689999999999995
Ambient temperature (°C)
13.91
Seeing (arcsec)
0.7150000000000001
Observation
ID
67463
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
50184
Name
HD_168592
RA
275.574242
DEC
-38.65706
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 20.2910 20.4480 123.8000 124.1000
A0-D0 29.2330 29.3380 39.6000 40.4000
A0-C1 17.4410 17.6210 90.1000 90.6750
B2-D0 33.8700 33.8680 3.0000 3.5000
B2-C1 11.2820 11.2820 2.9760 3.5100
D0-C1 22.5880 22.5870 183.0250 183.5590
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 60815.17783714
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.574242
DEC -38.65706
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 20.291
HIERARCH ESO ISS PBL12 END 20.448
HIERARCH ESO ISS PBLA12 START 123.8
HIERARCH ESO ISS PBLA12 END 124.1
HIERARCH ESO ISS PBL13 START 29.233
HIERARCH ESO ISS PBL13 END 29.338
HIERARCH ESO ISS PBLA13 START 39.6
HIERARCH ESO ISS PBLA13 END 40.4
HIERARCH ESO ISS PBL14 START 17.441
HIERARCH ESO ISS PBL14 END 17.621
HIERARCH ESO ISS PBLA14 START 90.1
HIERARCH ESO ISS PBLA14 END 90.675
HIERARCH ESO ISS PBL23 START 33.87
HIERARCH ESO ISS PBL23 END 33.868
HIERARCH ESO ISS PBLA23 START 3.0
HIERARCH ESO ISS PBLA23 END 3.5
HIERARCH ESO ISS PBL24 START 11.282
HIERARCH ESO ISS PBL24 END 11.282
HIERARCH ESO ISS PBLA24 START 2.976
HIERARCH ESO ISS PBLA24 END 3.51
HIERARCH ESO ISS PBL34 START 22.588
HIERARCH ESO ISS PBL34 END 22.587
HIERARCH ESO ISS PBLA34 START 183.025
HIERARCH ESO ISS PBLA34 END 183.559
HIERARCH ESO ISS AMBI TAU0 START 0.005634
HIERARCH ESO ISS AMBI TAU0 END 0.004304
HIERARCH ESO ISS AMBI TEMP 13.91
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.66