Exposure
ID
GRAVI.2025-05-14T06:55:16.653_1
Header ID
GRAVI.2025-05-14T06:55:16.653
Date updated
2025-05-14 07:05:51 UTC+0000
Release date
2025-05-14 06:55:16 UTC+0000
UTC Start
2025-05-14 06:55:16.653
UTC End
2025-05-14 06:57:56.653
MJD Start
60809.28838719
MJD End
60809.29023904185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005615
Ambient temperature (°C)
16.37
Seeing (arcsec)
0.71
Observation
ID
67406
Category
calibrator
Program ID
115.28E1.001
Program Title
A CLOSER LOOK AT THE ENVIRONMENTS OF LATE-TYPE CARBON-RICH WOLF-RAYET STARS
Program Type
Normal
PI / COI
DESHMUKH / SANA / SANDER / SHENAR / MÉRAND / FROST / LEFEVER
Target
ID
50139
Name
HD172927
RA
280.737098
DEC
-1.96243
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 50.5250 50.6430 21.2000 21.6000
U1-U3 91.2150 91.4990 28.3000 28.7000
U1-U4 118.5550 119.1430 59.4190 59.6110
U2-U3 41.5500 41.7130 37.0000 37.3000
U2-U4 84.7910 85.1450 81.0290 81.0910
U3-U4 62.0510 62.1340 108.7680 108.7670
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28E1.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60809.28838719
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 172927
HIERARCH ESO INS SOBJ NAME HD172927
RA 280.737098
DEC -1.96243
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 50.525
HIERARCH ESO ISS PBL12 END 50.643
HIERARCH ESO ISS PBLA12 START 21.2
HIERARCH ESO ISS PBLA12 END 21.6
HIERARCH ESO ISS PBL13 START 91.215
HIERARCH ESO ISS PBL13 END 91.499
HIERARCH ESO ISS PBLA13 START 28.3
HIERARCH ESO ISS PBLA13 END 28.7
HIERARCH ESO ISS PBL14 START 118.555
HIERARCH ESO ISS PBL14 END 119.143
HIERARCH ESO ISS PBLA14 START 59.419
HIERARCH ESO ISS PBLA14 END 59.611
HIERARCH ESO ISS PBL23 START 41.55
HIERARCH ESO ISS PBL23 END 41.713
HIERARCH ESO ISS PBLA23 START 37.0
HIERARCH ESO ISS PBLA23 END 37.3
HIERARCH ESO ISS PBL24 START 84.791
HIERARCH ESO ISS PBL24 END 85.145
HIERARCH ESO ISS PBLA24 START 81.029
HIERARCH ESO ISS PBLA24 END 81.091
HIERARCH ESO ISS PBL34 START 62.051
HIERARCH ESO ISS PBL34 END 62.134
HIERARCH ESO ISS PBLA34 START 108.768
HIERARCH ESO ISS PBLA34 END 108.767
HIERARCH ESO ISS AMBI TAU0 START 0.006572
HIERARCH ESO ISS AMBI TAU0 END 0.004658
HIERARCH ESO ISS AMBI TEMP 16.37
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.83