Exposure
ID
GRAVI.2025-04-04T05:19:42.320_1
Header ID
GRAVI.2025-04-04T05:19:42.320
Date updated
2025-04-04 05:30:52 UTC+0000
Release date
2025-04-04 05:19:42 UTC+0000
UTC Start
2025-04-04 05:19:42.320
UTC End
2025-04-04 05:22:54.320
MJD Start
60769.22201759
MJD End
60769.224239812225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0092415
Ambient temperature (°C)
14.13
Seeing (arcsec)
0.44
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 19.6670 19.8400 125.3000 125.4000
A0-D0 27.1830 27.3100 33.9000 34.8000
A0-C1 15.7580 15.9740 90.2300 90.7330
B2-D0 33.9200 33.9200 358.5000 359.0000
B2-C1 11.2990 11.2990 358.4870 359.0180
D0-C1 22.6210 22.6210 178.5310 179.0620
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 60769.22201759
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 19.667
HIERARCH ESO ISS PBL12 END 19.84
HIERARCH ESO ISS PBLA12 START 125.3
HIERARCH ESO ISS PBLA12 END 125.4
HIERARCH ESO ISS PBL13 START 27.183
HIERARCH ESO ISS PBL13 END 27.31
HIERARCH ESO ISS PBLA13 START 33.9
HIERARCH ESO ISS PBLA13 END 34.8
HIERARCH ESO ISS PBL14 START 15.758
HIERARCH ESO ISS PBL14 END 15.974
HIERARCH ESO ISS PBLA14 START 90.23
HIERARCH ESO ISS PBLA14 END 90.733
HIERARCH ESO ISS PBL23 START 33.92
HIERARCH ESO ISS PBL23 END 33.92
HIERARCH ESO ISS PBLA23 START 358.5
HIERARCH ESO ISS PBLA23 END 359.0
HIERARCH ESO ISS PBL24 START 11.299
HIERARCH ESO ISS PBL24 END 11.299
HIERARCH ESO ISS PBLA24 START 358.487
HIERARCH ESO ISS PBLA24 END 359.018
HIERARCH ESO ISS PBL34 START 22.621
HIERARCH ESO ISS PBL34 END 22.621
HIERARCH ESO ISS PBLA34 START 178.531
HIERARCH ESO ISS PBLA34 END 179.062
HIERARCH ESO ISS AMBI TAU0 START 0.009495
HIERARCH ESO ISS AMBI TAU0 END 0.008988
HIERARCH ESO ISS AMBI TEMP 14.13
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.49