Exposure
ID
GRAVI.2025-11-19T05:07:18.107_1
Header ID
GRAVI.2025-11-19T05:07:18.107
Date updated
2025-11-19 05:46:15 UTC+0000
Release date
2026-11-19 05:46:15 UTC+0000
UTC Start
2025-11-19 05:07:18.107
UTC End
2025-11-19 05:10:30.107
MJD Start
60998.21340402
MJD End
60998.21562624223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0075715
Ambient temperature (°C)
14.17
Seeing (arcsec)
0.65
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 22.3630 22.4910 130.1000 130.2000
A0-D0 27.7660 27.9300 46.4000 47.1000
A0-C1 18.3850 18.5680 100.0770 100.4090
B2-D0 33.6870 33.6920 5.1000 5.6000
B2-C1 11.2220 11.2240 5.0400 5.5730
D0-C1 22.4650 22.4690 185.0910 185.6250
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 60998.21340402
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 22.363
HIERARCH ESO ISS PBL12 END 22.491
HIERARCH ESO ISS PBLA12 START 130.1
HIERARCH ESO ISS PBLA12 END 130.2
HIERARCH ESO ISS PBL13 START 27.766
HIERARCH ESO ISS PBL13 END 27.93
HIERARCH ESO ISS PBLA13 START 46.4
HIERARCH ESO ISS PBLA13 END 47.1
HIERARCH ESO ISS PBL14 START 18.385
HIERARCH ESO ISS PBL14 END 18.568
HIERARCH ESO ISS PBLA14 START 100.077
HIERARCH ESO ISS PBLA14 END 100.409
HIERARCH ESO ISS PBL23 START 33.687
HIERARCH ESO ISS PBL23 END 33.692
HIERARCH ESO ISS PBLA23 START 5.1
HIERARCH ESO ISS PBLA23 END 5.6
HIERARCH ESO ISS PBL24 START 11.222
HIERARCH ESO ISS PBL24 END 11.224
HIERARCH ESO ISS PBLA24 START 5.04
HIERARCH ESO ISS PBLA24 END 5.573
HIERARCH ESO ISS PBL34 START 22.465
HIERARCH ESO ISS PBL34 END 22.469
HIERARCH ESO ISS PBLA34 START 185.091
HIERARCH ESO ISS PBLA34 END 185.625
HIERARCH ESO ISS AMBI TAU0 START 0.006955
HIERARCH ESO ISS AMBI TAU0 END 0.008188
HIERARCH ESO ISS AMBI TEMP 14.17
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.66