Exposure
ID
GRAVI.2025-03-05T03:31:34.444_1
Header ID
GRAVI.2025-03-05T03:31:34.444
Date updated
2025-03-05 03:40:53 UTC+0000
Release date
2026-03-05 03:40:53 UTC+0000
UTC Start
2025-03-05 03:31:34.444
UTC End
2025-03-05 03:34:46.444
MJD Start
60739.14692643
MJD End
60739.14914865223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.006521000000000001
Ambient temperature (°C)
15.0
Seeing (arcsec)
0.635
Observation
ID
62194
Category
science
Program ID
114.27NF.001
Program Title
UNVELING 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
46265
Name
VY_CMa
RA
110.740542
DEC
-25.76754
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 24.5490 24.5200 161.2000 161.8000
A0-D0 27.4900 27.2490 84.6000 85.0000
A0-C1 20.5170 20.4190 135.5060 136.1910
B2-D0 32.3420 32.2500 37.0000 37.2000
B2-C1 10.7740 10.7440 36.9790 37.1690
D0-C1 21.5670 21.5060 217.0390 217.2280
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.27NF.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60739.14692643
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V VY CMa
HIERARCH ESO INS SOBJ NAME VY_CMa
RA 110.740542
DEC -25.76754
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 24.549
HIERARCH ESO ISS PBL12 END 24.52
HIERARCH ESO ISS PBLA12 START 161.2
HIERARCH ESO ISS PBLA12 END 161.8
HIERARCH ESO ISS PBL13 START 27.49
HIERARCH ESO ISS PBL13 END 27.249
HIERARCH ESO ISS PBLA13 START 84.6
HIERARCH ESO ISS PBLA13 END 85.0
HIERARCH ESO ISS PBL14 START 20.517
HIERARCH ESO ISS PBL14 END 20.419
HIERARCH ESO ISS PBLA14 START 135.506
HIERARCH ESO ISS PBLA14 END 136.191
HIERARCH ESO ISS PBL23 START 32.342
HIERARCH ESO ISS PBL23 END 32.25
HIERARCH ESO ISS PBLA23 START 37.0
HIERARCH ESO ISS PBLA23 END 37.2
HIERARCH ESO ISS PBL24 START 10.774
HIERARCH ESO ISS PBL24 END 10.744
HIERARCH ESO ISS PBLA24 START 36.979
HIERARCH ESO ISS PBLA24 END 37.169
HIERARCH ESO ISS PBL34 START 21.567
HIERARCH ESO ISS PBL34 END 21.506
HIERARCH ESO ISS PBLA34 START 217.039
HIERARCH ESO ISS PBLA34 END 217.228
HIERARCH ESO ISS AMBI TAU0 START 0.005917
HIERARCH ESO ISS AMBI TAU0 END 0.007125
HIERARCH ESO ISS AMBI TEMP 15.0
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.59