Exposure
ID
GRAVI.2023-08-25T23:13:10.828_1
Header ID
GRAVI.2023-08-25T23:13:10.828
Date updated
2023-08-25 23:31:10 UTC+0000
Release date
2023-08-25 23:13:10 UTC+0000
UTC Start
2023-08-25 23:13:10.828
UTC End
2023-08-25 23:19:50.828
MJD Start
60181.96748643
MJD End
60181.97211605963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.005388
Ambient temperature (°C)
14.0
Seeing (arcsec)
0.905
Observation
ID
56766
Category
calibrator
Program ID
111.24JN.001
Program Title
ELUCIDATING THE EVOLUTIONARY CONNECTIONS BETWEEN NITROGEN- AND CARBON-RICH WOLF-RAYET STARS
Program Type
Normal
PI / COI
SANA/ SHENAR/ BODENSTEINER/ BORDIER/ DSILVA/ FROST/ LANGER/ LE BOUQUIN/ MAHY/ MÉRAND/ PATRICK/ REGGIANI/ TRAMPER/ VILLASEÑOR
Target
ID
42039
Name
HD_169783
RA
276.735752
DEC
-13.85473
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 86.1510 86.8840 110.6000 110.8000
A0-J2 118.1150 119.6090 86.6000 87.1000
A0-K0 114.9600 116.4000 62.6460 63.4240
G1-J2 52.7290 53.2370 45.0000 45.9000
G1-K0 85.8780 86.0930 14.4760 15.4270
J2-K0 48.5010 48.4630 340.9840 341.5320
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24JN.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60181.96748643
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD_169783
HIERARCH ESO INS SOBJ NAME HD_169783
RA 276.735752
DEC -13.85473
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
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 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 86.151
HIERARCH ESO ISS PBL12 END 86.884
HIERARCH ESO ISS PBLA12 START 110.6
HIERARCH ESO ISS PBLA12 END 110.8
HIERARCH ESO ISS PBL13 START 118.115
HIERARCH ESO ISS PBL13 END 119.609
HIERARCH ESO ISS PBLA13 START 86.6
HIERARCH ESO ISS PBLA13 END 87.1
HIERARCH ESO ISS PBL14 START 114.96
HIERARCH ESO ISS PBL14 END 116.4
HIERARCH ESO ISS PBLA14 START 62.646
HIERARCH ESO ISS PBLA14 END 63.424
HIERARCH ESO ISS PBL23 START 52.729
HIERARCH ESO ISS PBL23 END 53.237
HIERARCH ESO ISS PBLA23 START 45.0
HIERARCH ESO ISS PBLA23 END 45.9
HIERARCH ESO ISS PBL24 START 85.878
HIERARCH ESO ISS PBL24 END 86.093
HIERARCH ESO ISS PBLA24 START 14.476
HIERARCH ESO ISS PBLA24 END 15.427
HIERARCH ESO ISS PBL34 START 48.501
HIERARCH ESO ISS PBL34 END 48.463
HIERARCH ESO ISS PBLA34 START 340.984
HIERARCH ESO ISS PBLA34 END 341.532
HIERARCH ESO ISS AMBI TAU0 START 0.005388
HIERARCH ESO ISS AMBI TAU0 END 0.005388
HIERARCH ESO ISS AMBI TEMP 14.0
HIERARCH ESO ISS AMBI FWHM START 0.95
HIERARCH ESO ISS AMBI FWHM END 0.86