Exposure
ID
GRAVI.2025-05-20T07:55:26.020_1
Header ID
GRAVI.2025-05-20T07:55:26.020
Date updated
2025-05-20 08:06:07 UTC+0000
Release date
2025-05-20 07:55:26 UTC+0000
UTC Start
2025-05-20 07:55:26.020
UTC End
2025-05-20 07:58:38.020
MJD Start
60815.33016227
MJD End
60815.33238449223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.010443000000000001
Ambient temperature (°C)
14.11
Seeing (arcsec)
0.47
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 25.1590 25.1470 160.2000 160.8000
A0-D0 27.9210 27.7070 88.0000 88.5000
A0-C1 21.5210 21.4540 135.8880 136.5860
B2-D0 31.3500 31.2400 38.2000 38.4000
B2-C1 10.4440 10.4070 38.1270 38.3850
D0-C1 20.9060 20.8330 218.1920 218.4500
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 60815.33016227
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 25.159
HIERARCH ESO ISS PBL12 END 25.147
HIERARCH ESO ISS PBLA12 START 160.2
HIERARCH ESO ISS PBLA12 END 160.8
HIERARCH ESO ISS PBL13 START 27.921
HIERARCH ESO ISS PBL13 END 27.707
HIERARCH ESO ISS PBLA13 START 88.0
HIERARCH ESO ISS PBLA13 END 88.5
HIERARCH ESO ISS PBL14 START 21.521
HIERARCH ESO ISS PBL14 END 21.454
HIERARCH ESO ISS PBLA14 START 135.888
HIERARCH ESO ISS PBLA14 END 136.586
HIERARCH ESO ISS PBL23 START 31.35
HIERARCH ESO ISS PBL23 END 31.24
HIERARCH ESO ISS PBLA23 START 38.2
HIERARCH ESO ISS PBLA23 END 38.4
HIERARCH ESO ISS PBL24 START 10.444
HIERARCH ESO ISS PBL24 END 10.407
HIERARCH ESO ISS PBLA24 START 38.127
HIERARCH ESO ISS PBLA24 END 38.385
HIERARCH ESO ISS PBL34 START 20.906
HIERARCH ESO ISS PBL34 END 20.833
HIERARCH ESO ISS PBLA34 START 218.192
HIERARCH ESO ISS PBLA34 END 218.45
HIERARCH ESO ISS AMBI TAU0 START 0.011191
HIERARCH ESO ISS AMBI TAU0 END 0.009695
HIERARCH ESO ISS AMBI TEMP 14.11
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.47