Exposure
ID
GRAVI.2025-04-04T06:31:42.503_1
Header ID
GRAVI.2025-04-04T06:31:42.503
Date updated
2025-04-04 06:40:46 UTC+0000
Release date
2025-04-04 06:31:42 UTC+0000
UTC Start
2025-04-04 06:31:42.503
UTC End
2025-04-04 06:34:54.503
MJD Start
60769.27201971
MJD End
60769.274241932224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.007339999999999999
Ambient temperature (°C)
13.84
Seeing (arcsec)
0.69
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 22.5430 22.6610 129.4000 129.6000
A0-D0 29.7140 29.8350 49.7000 50.4000
A0-C1 19.4160 19.5680 99.2700 99.7040
B2-D0 33.9320 33.9320 8.9000 9.4000
B2-C1 11.3030 11.3030 8.8170 9.3330
D0-C1 22.6290 22.6290 188.8710 189.3880
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 60769.27201971
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 22.543
HIERARCH ESO ISS PBL12 END 22.661
HIERARCH ESO ISS PBLA12 START 129.4
HIERARCH ESO ISS PBLA12 END 129.6
HIERARCH ESO ISS PBL13 START 29.714
HIERARCH ESO ISS PBL13 END 29.835
HIERARCH ESO ISS PBLA13 START 49.7
HIERARCH ESO ISS PBLA13 END 50.4
HIERARCH ESO ISS PBL14 START 19.416
HIERARCH ESO ISS PBL14 END 19.568
HIERARCH ESO ISS PBLA14 START 99.27
HIERARCH ESO ISS PBLA14 END 99.704
HIERARCH ESO ISS PBL23 START 33.932
HIERARCH ESO ISS PBL23 END 33.932
HIERARCH ESO ISS PBLA23 START 8.9
HIERARCH ESO ISS PBLA23 END 9.4
HIERARCH ESO ISS PBL24 START 11.303
HIERARCH ESO ISS PBL24 END 11.303
HIERARCH ESO ISS PBLA24 START 8.817
HIERARCH ESO ISS PBLA24 END 9.333
HIERARCH ESO ISS PBL34 START 22.629
HIERARCH ESO ISS PBL34 END 22.629
HIERARCH ESO ISS PBLA34 START 188.871
HIERARCH ESO ISS PBLA34 END 189.388
HIERARCH ESO ISS AMBI TAU0 START 0.006679
HIERARCH ESO ISS AMBI TAU0 END 0.008001
HIERARCH ESO ISS AMBI TEMP 13.84
HIERARCH ESO ISS AMBI FWHM START 0.72
HIERARCH ESO ISS AMBI FWHM END 0.66