Exposure
ID
GRAVI.2025-04-06T06:01:18.057_1
Header ID
GRAVI.2025-04-06T06:01:18.057
Date updated
2025-04-06 06:11:02 UTC+0000
Release date
2025-04-06 06:01:18 UTC+0000
UTC Start
2025-04-06 06:01:18.057
UTC End
2025-04-06 06:04:30.057
MJD Start
60771.25090344
MJD End
60771.253125662224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0031745000000000002
Ambient temperature (°C)
14.16
Seeing (arcsec)
0.645
Observation
ID
66034
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
49155
Name
HD_152636
RA
253.988066
DEC
-33.50683
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 21.7610 21.8970 127.9000 128.1000
A0-D0 28.9420 29.0720 45.2000 45.9000
A0-C1 18.4090 18.5830 96.5740 97.0220
B2-D0 33.9260 33.9270 5.7000 6.2000
B2-C1 11.3010 11.3010 5.6190 6.1470
D0-C1 22.6250 22.6250 185.6700 186.2000
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 60771.25090344
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 152636
HIERARCH ESO INS SOBJ NAME HD_152636
RA 253.988066
DEC -33.50683
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 21.761
HIERARCH ESO ISS PBL12 END 21.897
HIERARCH ESO ISS PBLA12 START 127.9
HIERARCH ESO ISS PBLA12 END 128.1
HIERARCH ESO ISS PBL13 START 28.942
HIERARCH ESO ISS PBL13 END 29.072
HIERARCH ESO ISS PBLA13 START 45.2
HIERARCH ESO ISS PBLA13 END 45.9
HIERARCH ESO ISS PBL14 START 18.409
HIERARCH ESO ISS PBL14 END 18.583
HIERARCH ESO ISS PBLA14 START 96.574
HIERARCH ESO ISS PBLA14 END 97.022
HIERARCH ESO ISS PBL23 START 33.926
HIERARCH ESO ISS PBL23 END 33.927
HIERARCH ESO ISS PBLA23 START 5.7
HIERARCH ESO ISS PBLA23 END 6.2
HIERARCH ESO ISS PBL24 START 11.301
HIERARCH ESO ISS PBL24 END 11.301
HIERARCH ESO ISS PBLA24 START 5.619
HIERARCH ESO ISS PBLA24 END 6.147
HIERARCH ESO ISS PBL34 START 22.625
HIERARCH ESO ISS PBL34 END 22.625
HIERARCH ESO ISS PBLA34 START 185.67
HIERARCH ESO ISS PBLA34 END 186.2
HIERARCH ESO ISS AMBI TAU0 START 0.00321
HIERARCH ESO ISS AMBI TAU0 END 0.003139
HIERARCH ESO ISS AMBI TEMP 14.16
HIERARCH ESO ISS AMBI FWHM START 0.73
HIERARCH ESO ISS AMBI FWHM END 0.56