Exposure
ID
GRAVI.2025-11-18T04:49:05.662_1
Header ID
GRAVI.2025-11-18T04:49:05.662
Date updated
2025-11-18 07:05:22 UTC+0000
Release date
2026-11-18 07:05:19 UTC+0000
UTC Start
2025-11-18 04:49:05.662
UTC End
2025-11-18 04:52:17.662
MJD Start
60997.20075998
MJD End
60997.20298220222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.00442
Ambient temperature (°C)
15.57
Seeing (arcsec)
0.73
Observation
ID
71798
Category
science
Program ID
116.28P0.001
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 / ERCOLINO / JANIK
Target
ID
47344
Name
sig_CMa
RA
105.42723
DEC
-27.9348
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 21.5350 21.6800 129.3000 129.4000
A0-D0 26.7700 26.9370 41.6000 42.4000
A0-C1 17.2050 17.4110 98.0740 98.4110
B2-D0 33.6650 33.6680 1.9000 2.4000
B2-C1 11.2150 11.2160 1.8250 2.3630
D0-C1 22.4500 22.4520 181.8730 182.4120
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28P0.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60997.20075998
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME sig CMa
HIERARCH ESO INS SOBJ NAME sig_CMa
RA 105.42723
DEC -27.9348
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 21.535
HIERARCH ESO ISS PBL12 END 21.68
HIERARCH ESO ISS PBLA12 START 129.3
HIERARCH ESO ISS PBLA12 END 129.4
HIERARCH ESO ISS PBL13 START 26.77
HIERARCH ESO ISS PBL13 END 26.937
HIERARCH ESO ISS PBLA13 START 41.6
HIERARCH ESO ISS PBLA13 END 42.4
HIERARCH ESO ISS PBL14 START 17.205
HIERARCH ESO ISS PBL14 END 17.411
HIERARCH ESO ISS PBLA14 START 98.074
HIERARCH ESO ISS PBLA14 END 98.411
HIERARCH ESO ISS PBL23 START 33.665
HIERARCH ESO ISS PBL23 END 33.668
HIERARCH ESO ISS PBLA23 START 1.9
HIERARCH ESO ISS PBLA23 END 2.4
HIERARCH ESO ISS PBL24 START 11.215
HIERARCH ESO ISS PBL24 END 11.216
HIERARCH ESO ISS PBLA24 START 1.825
HIERARCH ESO ISS PBLA24 END 2.363
HIERARCH ESO ISS PBL34 START 22.45
HIERARCH ESO ISS PBL34 END 22.452
HIERARCH ESO ISS PBLA34 START 181.873
HIERARCH ESO ISS PBLA34 END 182.412
HIERARCH ESO ISS AMBI TAU0 START 0.00445
HIERARCH ESO ISS AMBI TAU0 END 0.00439
HIERARCH ESO ISS AMBI TEMP 15.57
HIERARCH ESO ISS AMBI FWHM START 0.74
HIERARCH ESO ISS AMBI FWHM END 0.72