Exposure
ID
GRAVI.2023-05-23T23:25:04.205_1
Header ID
GRAVI.2023-05-23T23:25:04.205
Date updated
2023-05-23 23:36:26 UTC+0000
Release date
2023-05-23 23:25:04 UTC+0000
UTC Start
2023-05-23 23:25:04.205
UTC End
2023-05-23 23:30:24.205
MJD Start
60087.97574311
MJD End
60087.9794468137
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.004039
Ambient temperature (°C)
12.58
Seeing (arcsec)
0.575
Observation
ID
55203
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
40914
Name
HD_98677
RA
170.13858
DEC
-58.58961
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 85.9450 86.2900 105.4000 106.5000
A0-J2 128.5650 128.7230 85.3000 86.5000
A0-K0 127.1640 126.9830 67.2870 68.4670
G1-J2 56.2020 56.0400 53.6000 54.7000
G1-K0 79.7090 79.4660 25.5960 26.4510
J2-K0 40.0650 40.1590 344.3230 345.0480
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 60087.97574311
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD_98677
HIERARCH ESO INS SOBJ NAME HD_98677
RA 170.13858
DEC -58.58961
HIERARCH ESO INS SPEC RES MEDIUM
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 339.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 85.945
HIERARCH ESO ISS PBL12 END 86.29
HIERARCH ESO ISS PBLA12 START 105.4
HIERARCH ESO ISS PBLA12 END 106.5
HIERARCH ESO ISS PBL13 START 128.565
HIERARCH ESO ISS PBL13 END 128.723
HIERARCH ESO ISS PBLA13 START 85.3
HIERARCH ESO ISS PBLA13 END 86.5
HIERARCH ESO ISS PBL14 START 127.164
HIERARCH ESO ISS PBL14 END 126.983
HIERARCH ESO ISS PBLA14 START 67.287
HIERARCH ESO ISS PBLA14 END 68.467
HIERARCH ESO ISS PBL23 START 56.202
HIERARCH ESO ISS PBL23 END 56.04
HIERARCH ESO ISS PBLA23 START 53.6
HIERARCH ESO ISS PBLA23 END 54.7
HIERARCH ESO ISS PBL24 START 79.709
HIERARCH ESO ISS PBL24 END 79.466
HIERARCH ESO ISS PBLA24 START 25.596
HIERARCH ESO ISS PBLA24 END 26.451
HIERARCH ESO ISS PBL34 START 40.065
HIERARCH ESO ISS PBL34 END 40.159
HIERARCH ESO ISS PBLA34 START 344.323
HIERARCH ESO ISS PBLA34 END 345.048
HIERARCH ESO ISS AMBI TAU0 START 0.004039
HIERARCH ESO ISS AMBI TAU0 END 0.004039
HIERARCH ESO ISS AMBI TEMP 12.58
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.56