Exposure
ID
GRAVI.2023-05-23T23:37:07.235_1
Header ID
GRAVI.2023-05-23T23:37:07.235
Date updated
2023-05-23 23:50:55 UTC+0000
Release date
2023-05-23 23:37:07 UTC+0000
UTC Start
2023-05-23 23:37:07.235
UTC End
2023-05-23 23:42:27.235
MJD Start
60087.98411152
MJD End
60087.9878152237
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.003738
Ambient temperature (°C)
12.34
Seeing (arcsec)
0.62
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 86.6590 86.9710 107.8000 109.0000
A0-J2 128.8760 128.9890 87.9000 89.1000
A0-K0 126.7560 126.5320 69.7920 70.9690
G1-J2 55.8480 55.6680 56.0000 57.1000
G1-K0 79.1800 78.9160 27.4080 28.2600
J2-K0 40.2580 40.3420 345.8640 346.5950
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 60087.98411152
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 86.659
HIERARCH ESO ISS PBL12 END 86.971
HIERARCH ESO ISS PBLA12 START 107.8
HIERARCH ESO ISS PBLA12 END 109.0
HIERARCH ESO ISS PBL13 START 128.876
HIERARCH ESO ISS PBL13 END 128.989
HIERARCH ESO ISS PBLA13 START 87.9
HIERARCH ESO ISS PBLA13 END 89.1
HIERARCH ESO ISS PBL14 START 126.756
HIERARCH ESO ISS PBL14 END 126.532
HIERARCH ESO ISS PBLA14 START 69.792
HIERARCH ESO ISS PBLA14 END 70.969
HIERARCH ESO ISS PBL23 START 55.848
HIERARCH ESO ISS PBL23 END 55.668
HIERARCH ESO ISS PBLA23 START 56.0
HIERARCH ESO ISS PBLA23 END 57.1
HIERARCH ESO ISS PBL24 START 79.18
HIERARCH ESO ISS PBL24 END 78.916
HIERARCH ESO ISS PBLA24 START 27.408
HIERARCH ESO ISS PBLA24 END 28.26
HIERARCH ESO ISS PBL34 START 40.258
HIERARCH ESO ISS PBL34 END 40.342
HIERARCH ESO ISS PBLA34 START 345.864
HIERARCH ESO ISS PBLA34 END 346.595
HIERARCH ESO ISS AMBI TAU0 START 0.003819
HIERARCH ESO ISS AMBI TAU0 END 0.003657
HIERARCH ESO ISS AMBI TEMP 12.34
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.65