Exposure
ID
GRAVI.2025-02-25T04:44:20.630_1
Header ID
GRAVI.2025-02-25T04:44:20.630
Date updated
2025-02-26 12:50:48 UTC+0000
Release date
2025-02-25 04:44:20 UTC+0000
UTC Start
2025-02-25 04:44:20.630
UTC End
2025-02-25 04:47:32.630
MJD Start
60731.19746099
MJD End
60731.199683212224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.012358999999999998
Ambient temperature (°C)
16.42
Seeing (arcsec)
0.9
Observation
ID
64840
Category
calibrator
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
48285
Name
d_Vel
RA
131.096577
DEC
-42.64917
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 89.7780 89.6730 131.7000 132.4000
A0-J2 123.7090 123.2830 110.1000 110.8000
A0-K0 117.3040 116.6850 87.9350 88.5550
G1-J2 52.1440 51.8480 70.6000 71.1000
G1-K0 81.3080 81.0120 38.1330 38.4980
J2-K0 46.6550 46.6510 1.2530 1.6800
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.27NF.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60731.19746099
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME d Vel
HIERARCH ESO INS SOBJ NAME d_Vel
RA 131.096577
DEC -42.64917
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 89.778
HIERARCH ESO ISS PBL12 END 89.673
HIERARCH ESO ISS PBLA12 START 131.7
HIERARCH ESO ISS PBLA12 END 132.4
HIERARCH ESO ISS PBL13 START 123.709
HIERARCH ESO ISS PBL13 END 123.283
HIERARCH ESO ISS PBLA13 START 110.1
HIERARCH ESO ISS PBLA13 END 110.8
HIERARCH ESO ISS PBL14 START 117.304
HIERARCH ESO ISS PBL14 END 116.685
HIERARCH ESO ISS PBLA14 START 87.935
HIERARCH ESO ISS PBLA14 END 88.555
HIERARCH ESO ISS PBL23 START 52.144
HIERARCH ESO ISS PBL23 END 51.848
HIERARCH ESO ISS PBLA23 START 70.6
HIERARCH ESO ISS PBLA23 END 71.1
HIERARCH ESO ISS PBL24 START 81.308
HIERARCH ESO ISS PBL24 END 81.012
HIERARCH ESO ISS PBLA24 START 38.133
HIERARCH ESO ISS PBLA24 END 38.498
HIERARCH ESO ISS PBL34 START 46.655
HIERARCH ESO ISS PBL34 END 46.651
HIERARCH ESO ISS PBLA34 START 1.253
HIERARCH ESO ISS PBLA34 END 1.68
HIERARCH ESO ISS AMBI TAU0 START 0.014162
HIERARCH ESO ISS AMBI TAU0 END 0.010556
HIERARCH ESO ISS AMBI TEMP 16.42
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 1.04