Exposure
ID
GRAVI.2025-05-20T02:13:31.818_1
Header ID
GRAVI.2025-05-20T02:13:31.818
Date updated
2025-05-20 02:25:52 UTC+0000
Release date
2025-05-20 02:13:31 UTC+0000
UTC Start
2025-05-20 02:13:31.818
UTC End
2025-05-20 02:16:43.818
MJD Start
60815.09272937
MJD End
60815.094951592226
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0051715
Ambient temperature (°C)
13.75
Seeing (arcsec)
0.6
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 19.4130 19.5910 125.1000 125.2000
A0-D0 27.0020 27.1280 32.6000 33.5000
A0-C1 15.4410 15.6630 89.4900 90.0060
B2-D0 33.9210 33.9200 357.7000 358.3000
B2-C1 11.2990 11.2990 357.7200 358.2540
D0-C1 22.6210 22.6210 177.7630 178.2980
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 60815.09272937
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 19.413
HIERARCH ESO ISS PBL12 END 19.591
HIERARCH ESO ISS PBLA12 START 125.1
HIERARCH ESO ISS PBLA12 END 125.2
HIERARCH ESO ISS PBL13 START 27.002
HIERARCH ESO ISS PBL13 END 27.128
HIERARCH ESO ISS PBLA13 START 32.6
HIERARCH ESO ISS PBLA13 END 33.5
HIERARCH ESO ISS PBL14 START 15.441
HIERARCH ESO ISS PBL14 END 15.663
HIERARCH ESO ISS PBLA14 START 89.49
HIERARCH ESO ISS PBLA14 END 90.006
HIERARCH ESO ISS PBL23 START 33.921
HIERARCH ESO ISS PBL23 END 33.92
HIERARCH ESO ISS PBLA23 START 357.7
HIERARCH ESO ISS PBLA23 END 358.3
HIERARCH ESO ISS PBL24 START 11.299
HIERARCH ESO ISS PBL24 END 11.299
HIERARCH ESO ISS PBLA24 START 357.72
HIERARCH ESO ISS PBLA24 END 358.254
HIERARCH ESO ISS PBL34 START 22.621
HIERARCH ESO ISS PBL34 END 22.621
HIERARCH ESO ISS PBLA34 START 177.763
HIERARCH ESO ISS PBLA34 END 178.298
HIERARCH ESO ISS AMBI TAU0 START 0.005062
HIERARCH ESO ISS AMBI TAU0 END 0.005281
HIERARCH ESO ISS AMBI TEMP 13.75
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.59