Exposure
ID
GRAVI.2025-05-20T03:27:56.007_1
Header ID
GRAVI.2025-05-20T03:27:56.007
Date updated
2025-05-20 03:40:50 UTC+0000
Release date
2025-05-20 03:27:56 UTC+0000
UTC Start
2025-05-20 03:27:56.007
UTC End
2025-05-20 03:31:08.007
MJD Start
60815.14439823
MJD End
60815.14662045222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0061795
Ambient temperature (°C)
13.9
Seeing (arcsec)
0.72
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 22.4490 22.5700 129.2000 129.4000
A0-D0 29.6190 29.7420 49.1000 49.8000
A0-C1 19.2940 19.4500 98.9260 99.3650
B2-D0 33.9310 33.9320 8.4000 9.0000
B2-C1 11.3030 11.3030 8.4080 8.9310
D0-C1 22.6280 22.6290 188.4630 188.9860
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 60815.14439823
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 22.449
HIERARCH ESO ISS PBL12 END 22.57
HIERARCH ESO ISS PBLA12 START 129.2
HIERARCH ESO ISS PBLA12 END 129.4
HIERARCH ESO ISS PBL13 START 29.619
HIERARCH ESO ISS PBL13 END 29.742
HIERARCH ESO ISS PBLA13 START 49.1
HIERARCH ESO ISS PBLA13 END 49.8
HIERARCH ESO ISS PBL14 START 19.294
HIERARCH ESO ISS PBL14 END 19.45
HIERARCH ESO ISS PBLA14 START 98.926
HIERARCH ESO ISS PBLA14 END 99.365
HIERARCH ESO ISS PBL23 START 33.931
HIERARCH ESO ISS PBL23 END 33.932
HIERARCH ESO ISS PBLA23 START 8.4
HIERARCH ESO ISS PBLA23 END 9.0
HIERARCH ESO ISS PBL24 START 11.303
HIERARCH ESO ISS PBL24 END 11.303
HIERARCH ESO ISS PBLA24 START 8.408
HIERARCH ESO ISS PBLA24 END 8.931
HIERARCH ESO ISS PBL34 START 22.628
HIERARCH ESO ISS PBL34 END 22.629
HIERARCH ESO ISS PBLA34 START 188.463
HIERARCH ESO ISS PBLA34 END 188.986
HIERARCH ESO ISS AMBI TAU0 START 0.00534
HIERARCH ESO ISS AMBI TAU0 END 0.007019
HIERARCH ESO ISS AMBI TEMP 13.9
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.74